/diy/ - Do It Yourself

How much would a 5in freestyle analog fpv drone would cost me if I'd buy and assemble part by myself?

>>2604308
You could probably build it for under $200 if you catch some sales for last years components, otherwise $250-$300 is pretty realistic.

lol
I know you're in here.

>>2604311
Will it have performance issues for this money? Is it even possible to make it more powerful without going bigger frames and losing efficiency?

>>2604312
That's an old pic, I have 6 subscribers now.

>>2604320
7 acckkkktually. just remember us anon when you make it big.

>>2604324
>when you make it big.
Ah, yes, some day I could be living the dream of being sent entry level RTFs on the condition that I continue to give them glowing reviews. That is truly "making it"!

>>2604313
Heck no. 5 inches is like the gold standard for agility, speed, and durability. Go bigger and you gain straight line speed and stability in wind, but lose durability and agility. Smaller and you go the opposite direction.

5 inch quads are so popular that like half the DIY parts out there are made for them.

I assume the difference in KV on same motor size and same manufacturer is because of winding and wire gauge? If so what's the relationship? The thicker the wire and less windings the slower KV but lore torque?

>>2604511
I think it's the number of windings that affect the actual KV, and thicker wire is just in preparation for the expected amps for a particular motor configuration.
Anyone who actually knows what they are talking about want to correct me here?

New clickbait just dropped: https://youtu.be/_YfMaYp_fQ0

>>2604614
Nice. I like the way you work the trees.

Would that wiring for the VTX and FC be correct? Im also not sure if I should solder it to the 5v or 9v pad?

>>2601828
I unironically watch Captain Drone as comfy material. I wish I had a non-MAAC park flyer group around here that just flew w/e and weren't terrified of bylaws/the city. Obviously I don't trust his reviews themselves.
I thought he was gay for the longest time, until his wife/kids started showing up in the E-bike/skateboard videos.

>>2601828
I unironically watch Captain Drone as comfy material. I wish I had a non-MAAC park flyer group around here that just flew w/e and weren't terrified of bylaws/the city. Obviously I don't trust his reviews themselves.
I thought he was gay for the longest time, until his wife/kids started showing up in the E-bike/skateboard videos.

>>2604643
Someone will correct me, but assuming a 9V+ battery, the board reducing voltage to 9V will be more efficient than it reducing voltage to 5V, so if your vtx takes it, which it appears to do so, I'd use the 9v pad.

>>2604937
>>2604643
Update: just read that it's for whoops, so if you're on a 1-2S battery, I'd go 5V

>>2604937
>>2604938
I would be using a 4s and does the 5v mean it just needs to get 5v minimum?

>>2604987
Yes, 5v minimum.

>>2604296
>>2604296
Hello, I'm pretty new to the whole drone thing and I wanted to ask a question about radio controllers. I'm plannig to get Radiomaster TX16S Mark II to train on an fpv simulator

Question is, can I plug it in my pc and start playing in the simulator or do I have to set it up first like binding it with a receiver?

>>2605064
You don't need to bind it to a receiver, but you will have to set up your output mixes. It's pretty easy though, it's just telling your radio what control goes to what channel.
Also, I'd advise you to look at the Radiomaster Boxer (ELRS version), it's one of those products that just absolutely shits on anything that came before it.

>>2605027
ah nice Im just gonna wire it to the 9v then thanks

>>2604987
>>2605027
5V means it needs 5V. If you connect something that needs 5V to 16.8V from a 4S battery you will instantly fry it.

>>2604937
Depends on what hardware you're powering. Until you define that, there is no correct answer. Some cameras and VTX units will accept 3.3-5V, whereas others take considerably more. Most tinywhoop stuff is going to take 1S or 5V without issue.

>>2605187
fuck I just realized the vtx says 1-3s I remember asking hdzero support and they said something like wiring to a 4s would be fine and then I ordered it

>>2605187
Im really confused now the power input here >>2604643 says 1-3s but when I just connect it to a 5v pad on my FC which gets power from a 4s would it even matter?

>>2605256
Your FC has two built in voltage regulators that drop down 4S voltage to 5V & 9V. If the VTX supports 1-3S (eg up to 12.6V) I would probably use the 9V output from the FC.

>>2604296
What's your guy's favorite simulator?

>>2605323
Okay and I cant really destroy it by connecting it to the 9V right?
>>2605400
Ive only used velocidrone because I hear it has the best physics

>>2605400
I fly liftoff. It's pretty decent, but the physics are a bit floaty in my opinion, so maybe I should try Velocidrone like >>2605422 did. Also, my computer chugs on the bigger maps, even with graphics on low (2d trees?!), so it usually is at ends up making me go fly irl where its maxed out graphics, 120fps, and perfect physics.
Still though, even a basic sim is a great tool for beginners.

>>2605422
>I cant really destroy it by connecting it to the 9V right?
The info says it takes 1S-3S voltage, so 9V will be fine.

>>2605647
okay I got it now thanks

>>2605129
Thanks Anon. I've also checked the Boxer and it's a lot better thant the TX16 Mark II. I'm surprised it's not included in Oscar liang's beginners guide

>>2605064
>Question is, can I plug it in my pc and start playing in the simulator or do I have to set it up first like binding it with a receiver?
I have a TX16 Mark II. For me, all I had to do turn it on, plug in the usb cable into the computer and the radio, then select "Joystick" on the radio screen when it detects it's plugged into a computer (Windows 11 machine). Didn't need to do any additional mixing, it was just plug n play with velocidrone. I imagine the Boxer would be pretty similar if not the same.

>>2605948
The Boxer is cheaper, smaller & has a more powerful internal ELRS module. But the TX16 has a much better screen (larger, colour, touch), more switches & a choice of colour/finish options. I wouldn’t say either is a lot better than the other, it depends what you want.

where do you even start with troubleshooting an intermittent power loss in 1/100 flights? it can handle getting hardcore bashed into the ground but a simple backflip or just cruising and it dies for half a second, long enough for the FC to reset and prevent me from blind recovering.

>>2605989
Your battery collapsed to 3.33v just before the failure. Might start there.

>>2605993
thats normal under full throttle, a cheapo 4s 1500mah pack so sags quite a bit. flipped it over, re-armed and done 10 back-to-back flips on the same battery right after. Thinking a bad connection somewhere, or the FC is on it's way out.

>>2605995
That was only what we saw on the screen. Mayhaps there was more sag than you think, and for less time. How many missed clock cycles would it take to bork the OS?

>>2606000
Realistically, his average cell voltage would've needed to hit less than 2.5V to cause issues with most 4S compatible flight controllers. They tend to have a cutoff of 3S 3.3V.

>>2606000
Could be, how tf do you measure that though?
the FC shouldn't reset unless is way under low voltage on a 3s as it's 3s-6s. cap on the ESC pad should prevent a brownout as well.
meh, It's kinda rhetorical, it's intermittent enough that I'll just keep flying till it gets worse or dies completely. I don't go long range with it.

>>2606008
> cap on the ESC pad should prevent a brownout as well

Lol no. Adding capacitors to the battery rail is good for filtering, but won’t do jack shit when the motors are pulling 100A & the battery can’t keep up.

>>2606010
it can handle a "few clock cycles" worth of capacitance is what I'm saying.

>>2606008
Low intermittency is the tech's nightmare. You'd need a scope to see it happen. How good is the Blackbox function on these things?
My thinking is that it fails too seldom to be a loose wire sort of problem. WRT the capacitor, one cap in one place in the power supply chain can't possibly catch every glitch. I see more caps, both large and small, in more places in the future for these machines.

>>2606013
Don't think it would be able to capture a powerloss scenario in full, doesn't look like there's any glaring issues with low voltage, although I'm not sure how often it's polling.

>>2606020
Actually, that was an old flight, meh w/e. just need to mentally remind myself not to fly over anywhere unrecoverable with this drone.

>>2606011
No, it won't. In the situation where the battery is sagging that low, the motors will empty that cap literally instantaneously. The FC isn't going to magically get priority for that stored energy.

>>2606032
>that low
>13v
k, bro, thanks for your help.

>>2606033
You do realise that a capacitor doesn't act as a separate reservoir of stored energy, right? When you punch the throttle & the battery sags hard, any capacitor attached to that battery will also sag? A capacitor in a system like this doesn't act as an emergency reserve, it can only ever act as filtering - the sheer amount of energy that the motors consume is astronomical compared to the capacity of even the biggest electrolytic you can squeeze onto a quad. Having an extra capacitor on your build isn't going to get you 'a few more cycles', it will get you literally zero more cycles.

>>2606068
Okay, lets break it down.
Last known status is the drone, upside down, no throttle, doing a flip, current draw in this scenario is around 5A, 13v. Say 60w.
time to drain a 32v 450 mf cap at 60w
t = RC ln(Vi/Vf)
427 microseconds
Therefore, approximately 92,251 clock cycles of a 216MHz chip would fit inside 427 microseconds.

>>2606078
So it wouldn't take a very long dip in *some* supply rail, *somewhere* on that FC board to wreak havoc. Consider noise, as in electrical noise to be a possible contributor to a brief low voltage/ high voltage condition in nearly any random place on that board. As I said earlier, more cowbell, I mean caps!

>>2606068
>doesn't act as an emergency reserve
Yes, that's exactly what a filter does, just at a smaller scale. You are correct that there is not enough room on a copter for motor level filter caps. That's what PIDs are for.

>>2605989
>YOU DIED

Just finished soldering my first drone together and it seems like most stuff works I havent tested the motors yet but I wonder if I should update t he FC and if so is there anything I should know before?

>>2606219
Pay attention to the motor order and rotation direction in Betaflight, you have about a 50/50 chance of having an angry drone flip around on the ground instead of taking off if you don't get that sorted before you put the props on and go for a rip.
Luckily there is a motor wizard that makes that very easy now, before you have to change that through the CLI or BLHeli. Just remember to leave your props off on the bench!

>>2606078
Your battery voltage doesn't sag down to 13V when your throttle is at zero.

>>2606219
>I wonder if I should update t he FC

Honestly you should have done that before you started soldering.

The absolute bare minimum you need to do is check your RC channel mappings, FC orientation, motor order/direction, then check & *test* that your failsafe works.

>>2606222
I already kinda now about the motor stuff in BF but never used BLHeli yet so hope that isnt to complicated.

>>2606255
Is that a joke or how should I check the motor stuff when I havent even solderd it and same with the Receiver?

>>2606303
I meant you should have updated it first. To check it even worked.

What's the addon to drop shit?

>>2606306
shitdropper v1.0

>>2606306
Just untorque all your screws, something should fall off eventually.

>>2605954
Thanks for the input anon

>>2606303
>BLHeli
All the real niggaz use Bluejay now.

>>2606483
Do they have 32 bit support, or are you one of those people that knows how to make an ESC last for longer than a year?

>>2601822
>drone equivalent to Kev
Xjet is the plane boomer equivalent of Kev with some drones and rants interspersed.

>>2606484
Its only 16 bit.

>>2606306
Your imagination. Use that and you can build anything. If you don't have an imagination, you're sadly among the least creative people on the planet and should probably be a factory press operator or something.

>>2606484
Bluejay is an upgrade from BLHeli_S. If you have BLHeli32, it's just fine to keep it.

>>2606485
He's got excellent educational videos on his RCModelReviews channel. Learned everything I know about antennas from him.

>>2606219
test everything without props on first

>>2606595
But it's more entertaining when they put the props on and it goes berserk in their bedroom.

>>2606598
BOOM!
https://www.youtube.com/watch?v=zShHGcJklmc

>>2606219
Turn it over, strap it with a tape to your desk and test it like that.

>>2606615
Not falling for the old flying desk gag again.

>>2606610
>We're researching how to make drones safer!
Yeah, that (((research))) is the opposite of what I want drones to turn into.

>>2606610
>at maximum speed
>it's like 30mph
Silly DJI!

>>2604296
Holyshit, I am so glad I started with a simulator first. I would have destroyed 5 drones in minutes if I could afford it.
I can't get used to the controls

>>2607241
Is there a training guide to streamline the process, or is it just trial and error for a long time?

>>2607242
Start by flying forward (pitch forward and hold) while you blip the throttle to make yourself go up and down. Then, fly forward and hold altitude with the throttle. Then fly lower and follow the terrain with the throttle.
After a few weeks of this, you should be ready to attempt your first turn!

>>2607242
Forget to add, pitch forward until the horizon is in the middle of the screen. This is basically your neutral position, if you want a faster neutral position increase the camera angle uptilt on your quad, if you want a slower neutral position then decrease camera angle.

>>2607257
Thanks for the reply
Look like it's going to be a long road

>>2607269
Nah, you'll start to learn pretty quick, and then the dopamine from the satisfaction of progress will take over and do all the hard work for you.

>>2607242
Lesson 2.
While you are pitched forward, cameras level with the horizon:
>Move both sticks side to side in the same direction to turn like a car (yaw)
>Move both sticks side to side opposite of each other to roll like an airplane
There are a lot of geometry/physics tricks that are a variation of those two turning concepts, but those two things are what build the foundation for how you translate the roll and yaw axes on the sticks into actual roll and yaw on the quad.
Otherwise moving just the yaw axis stick mover your view in a smiley face shape, and just the roll axis stick moves your view in a kind of a frownie face shape.

>>2607242
I spent like two hours in the sim, then went and flew. A year later, it's as simple as riding a bike.

>>2607325
Same here, I don’t get all the questions I see from people saying they’ve spent 20 hours asking if they’re ready for their first actual quad.

>>2606010
Anyone tried putting a diode between the battery and cap? Shouldn't that provide a much more stable vbat bus for the flight controller and peripherals and just let the esc eat shit when the cell resistance goes to the moon or am I completely off on how these things are put together?

>>2607527
How would a diode help a system that has literally run out of available power?

LMAO
the absolute state

>>2607650
Y2K came late for these guys.

>>2607650
This was a fun surprise today, thanks Orqa! Looks like I'm opening my goggles tonight...

>>2607682
Goggle Hymen Status: BROKEN

>>2607779
It really bothers me when you spend that much on something & they don't even wash away the ugly flux left over from the hand soldering.

>>2607779
there's a firmware upgrade btw, not read through the solution.

New high score!

>>2608131
plug a battery in the back and get that 650w goodness.
Also, hope you're not charging them packs over 2c anon.

>>2607682
It was probably a timed feature designed to switch things to a monthly service fee after you thought you bought it. Common nowadays, with increasing frequency.

Is there a superior mode for sticks coming from vg? Seems like mode three with yaw and pitch being on the right is most like first person video games

>>2608131
Is that a fully reflective LCD screen?

>>2608283
Most Rc is pitch and roll on one stick, since that's what real aircraft do. But try different modes and see what works best for you?

>>2608186
No, that's 3x 3300mAh Lipos at 1C on one channel, and 2x 8000mAh Li-ion at 0.5C on the other. I'm not sure if I'm going to continue parallel charging my LR batteries in the future, those are pricey batteries and I don't want to get a bad cell (although it is nice to get them all done in one hour).

>>2608283
Do yourself a favor and just learn to fly Mode 2, with roll/pitch on the right and throttle/yaw on the left. It will save you many headaches throughout your Bandos career. All the GOOD videogames are Mode 2 anyways (DCS, Hellcats Over the Pacific, X-Plane 10, and so on). Bing Wahoo muscle memory doesn't really translate to flight anyways.

>>2604296
What are some thermal cameras I could fit on a FPV drone?

I have a JBL bluetooth speaker with a dead battery pack inside. Can i replace the 2 batteries inside with some batteries i got from 2 power banks? These power banks also have lipo batteries but with a bigger capacity. Speakers battery has a 3 wire connectors, soldered to a board i assume is the controller circuit. My plan is to solder these batteries in place of the older ones. Will it work?

>>2608448
Well, it's done. I used some hot glue

>>2608448
probably, but depending on the controller they might not charge all the way
>>2608457
disgusting, wtf. please never solder/weld anything

>>2608462
Thanks

>>2608457
Try shrink tube next time. That's an abomination.

>>2608365
i parallel charge all my batteries, as the kids say, yolo, amirite?

>>2608429
foxeer have one or FPV, not cheap though

>>2608457
don't listen to the autists. if it works it works, good job anon.

>>2608529
>>2608540
appreciate

>>2608429
I've seen some thermal cores and control boards to fit them into. That route will probably run you about $300-500. Otherwise a premade solution will likely run you about $700-5000. It's not cheap to put a thermal cam in the sky, bro. Probably better look at an X8 configuration if you decide to fly that kind of cash around.

>>2608538
Sus

>>2608816
Post broccoli top.

>>2608538
>>2608816
People apparently don’t realise that all large lithium packs are constructed from paralleled cells. Same goes for many high discharge packs. The 5500mAh 3S pack I run my spot welder from is internally 3S2P, the 8000mAh 6S graphene I have is 6S2P.

If you buy any >8000mAh lipo or it’s pretty much guaranteed that it will be a 2P pack.

>>2608905
how do these parallel cells get balanced if you only have one balance lead?

How do 1S quads compare to 2S noise-wise?
I love my 1S quads but want a bit more oomph to carry Hdzero.
I like that the 1S are pretty quiet and you can barely hear them a few metres away so I can fly them pretty much anywhere in public and not annoy people.
I'm looking at Happymodel Bassline, Flywoo Nano 20.

>>2608909
Because when you connect two cells in parallel, charge will flow between them until the potential difference is zero.

>>2608917
Why bother using balance leads at all then?

>>2608929
Because how else would you balance cells connected in series?

Flew my first quad today - darwinfpv baby ape. Way Hardee than I expected and had to use horizon mode, which was funny because in the sims, horizon was unusable. Also, it was was waving in the wind, kinda wobbly on the yaw axis, on recovering or trying to stabilize. Which PID do I tune for that?

>>2609307
>Which PID do I tune for that?
The one in your flight controller.

Serious answer: avoid angle and horizon mode if you can't stand wobbles, rate mode is infinitely better.

/k/ here... I know fuck-all about quads so I came here to you guys. Apologies if this is obvious.
I was watching a vid from the Ukrainian conflict and I saw pic related. It's a fucking mortar strapped to a quadcopter drone.
Can this drone really lift and fly a 7-8lb mortar to a decent combat distance, say 1000m?

>>2609322
looks like a iflight chimera7, so max payload would be about 4kg yeah. but that's really pushing it, I highly doubt 1000m AMSL, probably more like 200m and they're using a barometrically triggered cluster munition rather than a dumb bomb

>>2609322
>>2609343
wait i'm retarded you mean distance, yes 1km level flight would not be an issue. looks like they're using analog fpv so that's the main limiting factor, there's no GPS available due to the sats being off during that part of their orbit and active jamming, which means you need line of sight the entire way so probably a lot of headless pilots kicking around kek.

>>2609343
>>2609348
Thanks so much anon! Wow... that thing is like $800 and one-time use. Crazy. I guess that's pretty cheap considering how much mil equipment costs.
Here's the vid where I grabbed the still from. They fly it into a building. It contains no gore.
I've never seen a fuse like that.

Didn't anyone predict that FPVs would be used in wars and soldiers would fly as kamikaze drones?

>>2609358
Javelin missiles are like $70k (iirc). I'm not sure how much a mortar shell costs, but this is a much cheaper and probably more accurate solution.
Everyone, buy a Chimera7 before the judeo-boomers start making you pass a background check for one.

>>2609322
>a 7-8lb mortar
They remove the rocket motor from the mortar and bring its weight down to 2-3 lb.

>>2609361
>pass a background check for one.
Licensing was step 1.
They'll find another crisis to exploit and will make it more difficult to fly drones.
>>2609362
I wonder why they left tail fins. It's dead weight too.

I still find it amazing that the anon above could ID a quad model from a blurry pic.

Is this model that popular? What's so special about it?

>>2609348
>due to the sats being off during that part of their orbit
how does this work/happen
wouldn't the US/UN sats (as opposed to GLONASS) want to run and support the area anyway?

>>2609363
>amazing that the anon above could ID a quad model from a blurry pic. Is this model that popular?
nothing to do with the model's popularity, everything to do with autism's popularity

>>2609377
that's what the russians thought as well, and the reason there was a sudden loss of precision air strikes and overall cluster fuck of the initial invasion (with regard to air superiority). basically the US is not bombing at the moment so high accuracy isn't needed, the GPS sats simply stop transmitting or transmit incorrect timing information when they're above that region. yes you can still get GPS at the horizon, but the signal is so poor that the accuracy isn't useful. for general navigation, aircraft carriers and destroyers are designed to operate by dead reckoning alone and can be used as a reference point for aircraft and munitions, both setting the origin at startup and supplementing drift using radio triangulation. if there is a bombing campaign or big shit where you have NATO entering ukraine or russia then GPS will be switched back on and can be weaponized itself, e.g. leave it on for a month and wait for the russians to start relying on it again and then coordinate the switch off with a operation to fuck shit up.

>>2609382
wouldn't this also interfere with every single civilian for miles, including emergency vehicles and shit. I'm sure some humanitarian org would have a fit if a 5y/o kid died b/c an ambulance couldn't find, or nav, to their precise location due to GPS failure

>>2609363
>I still find it amazing that the anon above could ID a quad model from a blurry pic.
It's literally the quad in the OP pic. It's a good drone, a real work horse, like the AR-15.

>>2609385
It’s a fucking warzone, there are 5y/o kids getting bombed.

>>2609404
>5y/o kids getting bombed
Kids these days have it so easy. Smh. Back in my youth, we had to grow up, go to school, get a job, talk to people, etc.

>>2609313
Upon closer inspection, the wobbles may be from three of the 8 screws holding the arms in falling out. Damned chinks for making shit and damned me for not going over them

>>2609503
>Phillips head
Replace all those with Allen bolts so you don't end up stripping them out. Probably want to stick with button head instead of socket though.

>>2609404
MAX KEK take your propaganda elsewhere. Post drones instead

>>2609307
You were likely experiencing prop wash. Angle and horizon modes will struggle with that effect in most cases. Best to learn acro mode so your PID controller can do its job. If it's still a problem, come back and ask for suggestions on tuning the little guy. It's not easy but we can likely get your tune into better shape.

>>2609322
I fucking hate them for doing this. The shit-eating boomer politicians and regulators drool when somebody gives them such an easy excuse to make more laws.

>>2609503
That'll introduce vibrations and fuck with the gyro. If it keeps throwing them out, get some blue loctite. Not the red or they're not coming back out.

>yaw right
>turns left
Actually, as I'm writing this, think my controls are mapped all fucked up

Flying for a bit on velocidrone and this shit is so much fun. Had a few good loops I think. I still feel like like a hydroplaning newborn deer at times, especially when trying to make a sharp turn. But I guess you can't really turn the same way as you would turn a car, maybe
but at least I'm starting to get it. Idk what was wrong with me the other day
>>2607292
>Otherwise moving just the yaw axis stick mover your view in a smiley face shape, and just the roll axis stick moves your view in a kind of a frownie face shape.
Thanks, I was thinking I would be able to turn like a car using yaw, but this helped make a lot more sense

>>2609867
If you want to turn hard, you need to turn your nose past where you want to go (and low), then carve it around and straighten it out at the right moment. This video might help you visualize what I'm talking about: https://youtu.be/LeNM-7FTJuM
Keep in mind that is a racing quad with a 45 degree camera angle, so if you are running a 20-30 freestyle angle you will either corner more softly with the same view, or corner just as hard by dipping your view way lower.

>>2609897
stop shilling your yt channel, i will not subscribe.
what camera and vtx are you using

>>2610753
That is Foxeer Predator 5 and Crossfire Pro32 Nano. It looked like shit before I redid the antenna cable routing.

I live on a metroplex so I am not sure where I can fly where I can avoid people. should I build or buy a small drone to fly around in my apartment? Any recommendations
>>2609897
I think "I figured out" how to do another type of hard turn, with pushing sticks in oposite directiones. Out for left and in for right. Still hard to pull off

>>2610849
OK last blog post but I am pretty happy I can do some of those sharp race course turns, sometimes
>>2609897
Advantages of one camera angle vs the other?

>>2610821
That tray is pretty cool!

>>2610849
Grab a Mobula 6 with high kv motors. They sell a version with ELRS and 25000kv motors for about $100. It's a real champ.

>>2610821
*TBS Pro32 Nano

>>2610862
>Advantages of one camera angle vs the other?
The more steep the camera angle, the faster your speed is, since you are effectively increasing the angle that the quad is pitched forward while leveling the camera with the horizon. I like 30 degrees for freestyle because it's a decently fast uptilt, but you can still just barely see the ground while hovering, but some people like 20-25 if they fly backwards a lot. For racing, most people are in the 45-50 degree range, with a few sickos running 55 degrees.

>>2610870
Thanks, I designed it myself! I have one for Crossfire too, I should probably get around to posting them on Thingiverse.

>>2610872
Seconding this, or the Mobeetle6 which I can personally vouch for.

>>2610872
>>2610875
Howm uch worse is 19k vs 25k? Cant find a 25k KV one in stock

>>2610882
Where are you buying from? I know tinywhoop dot com has them. It'll be well worth it to go with high kv as it will help your stability and responsiveness. These little quads have very lacking power to weight ratios which is why it really helps.

>>2610882
19k will give you longer flight times, 25k will let you recover from a dive or drop more easily. You probably won't notice much of a speed difference, but tiny whoops do struggle with descent recovery more than larger quads so a little more power is nice in that area.
Happymodel also sells the 25k motors separately, so you could just get the 19k whoop and replace the motors afterwards.

>>2610963
>>2611033
Most are out of stock. I can't find a single 25k in stock and I'm a bit worried I'll place an order and they are discontinued. I might just buy the motors separately

What do you guys think of bangGood? Seen quiete a few revies saying they never got their order

>>2611083
I avoid them like the plague. Only thing I ever bought from was a bunch of M1.4 motor screws because I couldn't find them elsewhere. The only great thing about them is the variety.

>>2611083
I just stick to Racedayquads, Getfpv, and Pyrodrone. They are about the same price, and ship way faster than Banggood.

>>2604296
https://www.amazon.com/Forum-Novelties-Donald-Cardboard-Costume/dp/B016YVQP0C/ref=sr_1_3?keywords=trump+mask&qid=1683410926&sr=8-3

https://www.amazon.com/NMY-Transmission-Batteries-Brushless-Beginners/dp/B0BL77JT85/ref=sr_1_13_sspa?crid=1AZAGA5KT1XU5&keywords=DRONE&qid=1683411111&sprefix=dron%2Caps%2C260&sr=8-13-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzRkhVWkJJUExYNjJMJmVuY3J5cHRlZElkPUEwMTAxMTA4Mk5QWk9aNTVSQlE3RyZlbmNyeXB0ZWRBZElkPUEwOTc0NzQwVDQzM09DMU5TUkE0JndpZGdldE5hbWU9c3BfbXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

>>2611083
They used to be good for electronics and the like but aliexpress has since taken over that area too. I still check bangood when buying wings, though, because they're generally cheaper and have better stock.

>>2611134
Those are my go to shops as well, but I also try to support small shops too since their lack of popularity often means they'll have high demand items in stock.

Anybody fly analog and HD? DO you guys have two goggles or just an adapter? What's the superior system/goggles? HD zero, DJI or something else? It's kind of hard to choose since I don't know which cameras are better or more ubiquitous

>>2611203
The first link in OP's post.

>>2611255
>https://oscarliang.com/build-racing-drone-fpv-quadcopter/
Doesn't really say.
But I think he says HDzero goggles are best for analog and for HD zero system so I guess I will go with that
https://oscarliang.com/fpv-goggles/#Digital-vs-Analog-Choosing-Your-Ideal-FPV-System

>fell for the DJI goggles meme
>quality is good but not as amazing as people say
>could have bought Orqas for the price of the goggles themselves
>now have to spend `$150 on a vtx for every new drone I want to build

>>2611278
stop being a little bitch, story could have went
>buy orqas
>still shit house analog despite the cost
>go to fly one day
>haha looks like it's the wrong time to be alive as firmware
>can't do shit for 2 weeks until poo in the loos roll out an update
>no sign of HD module in sight
>if it ever does come out will cost half as much as the goggles
>still have to replace all your drone cameras with $$$ ones anyway
>quality and range is still worse than dji despite costing more in the end

>>2611278
>>2611203
I prefer DJI O3 (with Goggles 2) for 4" and above, and analog (Orqa meme goggles) for everything 3" or less. The one exception is my analog 5" racer, but that's just because I can't in good conscience justify a third par of goggles even though HDZero looks really good for racing and hardcore freestyle.
If you are just starting out, the HDZero goggles look like a great value for digital+analog in one goggle, I was rocking a similar setup when I started out except the DJI Goggles V2 with analog adapter for whooping. The V2 Goggles are still just fine today too, especially now that the price has come down quite a bit and WTFos can give you full OSD.

>>2611321
>HDZero
when did those come out if at all yet? I don't see them sold anywhere

>>2611334
You have to get them from the HDZero website, and there will be a wait.

>>2611284
>poo in the loos
But they're all slavs.

>>2611278
You can sell your goggles anon, you don't NEED to use them.
You're going to be disappointed with the orqas if you thought DJI was bad.

>>2611569
Not him, but my gripe with certain goggles is the lock-in. The ones that don't work with anything else. Been quite happy with my Skyzone O4X set, and can use them with Walksnail or HDZero if I want cleaner image. Flexibility is king with such a modular hobby.

I got a toy drone at costco today
Good times

My quad randomly loses rx at an irregularly close distance and for less than a second. Frsky (I know, I know, but I have so much frsky stuff from my planes) xm+ diversity receiver, in clear view of the TX at this angle. Anyone know what gives?

>>2611709
What polarization did you use for that antenna? You could be pointing a null at yourself.

>>2611739
Rx and TX are both Omnis. The Rx antennas are in a V shape to avoid dead zones. Antennas are at the back of the quad, so as it flies away from me, I should have great signal. Rssi at the top right is high during the loss, too.

>>2606306
Something something about lantern settings and engineering

>>2611743
Wasn't aware you had RX diversity. Guess all I've got left is blaming FrSky.

>>2611709
This is the main reason that most people have moved from FrSky. You will be getting decent RSSI, and then suddenly the link just drops for no reason and you get random failsafes. Something to do with how the packets are handled IIRC, everyone started going to Crossfire because it could run on even partial packet loss (900mhz penetration bonus), and then ExpressLRS took that same packet handling and sped it up to take advantage of 2.4ghz.
I wouldn't trust FrSky for anything bigger than a tiny whoop.

>>2611852
ELRS still amazes the hell out of me. Get a $10 module and it'll go a few miles at least. I've tested a Matek R24-D out to 5 miles at 100Hz and it still had wasn't at its limit! Still haven't managed to failsafe it even one time.

>>2611334
also if you preorderd them you got 100usd off

>>2611907
I have yet to properly use mine. The optics are loose and the receiver is full of random noise that doesn't appear on the standalone VRX module.

I keep briefly losing GPS, I have like 8 sats and then it drops to 0 for a second and then back to 8. It seems to do this every few seconds.
This only started happening recently. Any ideas? Would a new GPS help?
This is worrying as I rely on the GPS failsafe often and I had the feeling that a drop to 0 sats will cause betaflight to fall out the sky.

>>2611917
What video system are you using alongside of it? Both V1 Walksnail and HDZero will totally shit on your GPS performance unless you give the two significant separation.

>>2611919
Plain analog 5.8. And beyond a few weeks ago, I never had this issue. And as far as I recall I've made no changes to my quad.

>>2611922
Perhaps the antenna was damaged in some small way then. You're the one who knows the history of your quad. If it worked before and now it doesn't, you've either changed something or something is broken.

>>2611908
they are my first goggles and they also have loose optics its really minor but I still gonna send them back

>>2611930
Same. I paid for premium goggles, and they better work properly at the very least. This whole thing is really making me consider just selling all of my HDZero gear and swapping it all to Walksnail. I'm not a racer, but I wanted the ability to use almost every system, have HDMI passthrough, and rock an excellent display. Currently, I can do one of those things.

>>2611919
> Both V1 Walksnail and HDZero will totally shit on your GPS performance
> Walksnail - 5.8 GHz
> HDZero - 5.8 GHz
> GPS - 1.57542 GHz
Explain me the physics of this phenomenon please.

>>2611935
Yeah they still seem to have lots of problems it seems like all the hardware problems are sorted out for now. Analog still seems to not work properly tho and last time I checked on walksnail it really looked pretty bad compared to DJI

>>2611852
>everyone started going to Crossfire because it could run on even partial packet loss

People started going to Crossfire because FrSky didn’t have a 900MHz system at the time. All RC systems tolerate partial packet loss, that’s not something unique about Crossfire.

>>2611930
>>2611935
you guys convinced me to wait until they are in stock here in the UK so I can easily return them
I tried Walksnail and hated the lag and compression artefacts, so I am really hopeful about hdzero's future

>>2611782
Been tempted to switch to elrs for quite a while but I'm just buried so deep in frsky. I could just get one of these combo modules and plug it into my QX7, right? Would I need to change my Tx firmware to work with it?

>>2611938
I think it's the encoder hardware leaking signals rather than the carrier. A lot of GoPro cams will do the same shit. Since the GPS receiver needs to have such high sensitivity, it'll grab signals a long way from their peaks, and that's still more than enough to drown out the legitimate ones.
>>2611965
HDZero is basically all tiny compression artifacts, but the latency is pretty damn good. Still looks a lot sharper than analog though.

>>2612000
As long as it supports modern CRSF and LUA scripts, I think it'll just plug and play. From the quick looking I did with Google, other people had no issue getting it going.

>>2612046
>Since the GPS receiver needs to have such high sensitivity, it'll grab signals a long way from their peaks

That's not how radio works.

>>2611907
Will they be $700?
Because I just bought them from their website and didn't see anything about a discount. Unless I guess theyvare actually in stock
>>2611930
>>2611935
Man, I just bought these. I wanted something for both analog and HD for my first goggles. Now I'm not sure the low latency is worth the low resolution compared to dji

>>2612054
Have you not watched a radio signal on a spectrograph as you boost the power? Most transmitters bleed outwards from their intended frequency. That's why races require everyone to use 25mW and they all pick every other channel. The more sensitive a radio is, the more susceptible it is to grabbing unwanted interference. GPS signals are fucking weak.

>>2612059
My plan was to use them with Walksnail and analog most of the time, but sometimes HDZero. I guess the excessive amount of flexibility and open source nature made me ignore the fact that I didn't plan on using them for their primary purpose all that much. After mine are fixed I'll at least give them a couple good days of flying to see what I think.

>>2612064
>>2612054
>>2612046
So I've asked in /ham radio thread about this interference. Basically it's impossible unless you have bad or faulty hardware.
1. Your GPS receiver is broken.
2. Bandpass filter on your GPS receiver is bad and unable to filter the frequencies properly.
3. Your MCU can't process both video and GPS data with proper speed and throttles peripherals.
> try to place the GPS receiver to face upwards and shield it from below, and try to place the video TX on the bottom of the drone. A few centimeters of distance may make a difference.

>>2612064
>Most transmitters bleed outwards from their intended frequency.

Yes but only by few MHz, not by multiple GHz.

When it comes to FPV, we are trying to cram multiple signals into a very small frequency range (5.645-5.945GHz) so even a small amount of bleed becomes problematic. This is especially true at higher transmit powers & when trying to use adjacent channels which are literally only 20MHz apart.

However even the worst chinabrand VTX bleeding 50MHz above & below its chosen frequency would have zero effect on GPS, because GPS signals are way down at 1.575GHz.

>The more sensitive a radio is, the more susceptible it is to grabbing unwanted interference

Even a hyper sensitive 1.575GHz receiver isn't going to give two shits about signals up at 5.8GHz, unless there is literally something broken with its filters (as >>2612074 already said).

>>2612074
Let's just ignore what hundreds have experienced and go off of 4chan hams.
https://www.youtube.com/watch?v=0UZmax7I4QA&t=202

>>2612098
You completely ignored what I said. It's not the video carrier that's interfering. It's the hardware processing the image.

>>2612099
>and in the end I still have not solved the problem
Yeah bro, thanks, I won't watch this.

>>2612100
That’s not at all what you said though.

The issue of things like GoPros putting out interference around 1.5GHz as that happens to be the clock of their processor is well known.

But you were talking about video transmitters bleeding around their selected frequency causing issues for GPS reception, which is patently bullshit.

>>2611942
Well there is something going on there that's different, because Crossfire and ELRS will somehow push though a partial loss of signal and work again, whereas FrSky just hangs up the phone and says "fuck you, it's failsafe time".

Is it possible during drone race tune up to someone's frequency and spam random commands on that channel from your controller?

>>2612203
There's definitely something going on, but I doubt it's something that uniquely afflicts FrSky.

As much as people love to fight about perceived differences, the reality is that all RC platforms are fundamentally the same tech. FrSky, TBS, ELRS, etc. are all just taking the exact same RF transceiver ICs & packaging them up according to the exact same reference implementations. None of them can exceed the basic limitations of the hardware nor change how RF works.

The video doesn't tell us much, because as we all (should) know RSSI doesn't say anything about frame loss. If that anon happened to be flying somewhere with enough interference to cause sufficient frame loss to trigger a momentary rxloss on FrSky, we would expect the same thing to have happened with Crossfire, ELRS, etc.

Generally going from any 2.4GHz system to any 900MHz system magically fixes most problems simply thanks to the higher transmit power & comparatively less interference. In that regard anon may well 'fix' their problem by switching to Crossfire or 900MHz ELRS... but the same would also be true if they switched to FrSky R9.

Don't get me wrong, if I was starting afresh today I would absolutely buy into ESRS - but not because FrSky is fundamentally 'worse'. It's been so on trend to bash FrSky in certain circles recently that people who have zero hands on experience with it swear that it killed their mother. But when it comes to diagnosing issues like this, blindly telling people to just swap to a different system doesn't usually address the actual problem.

>>2612223
Probably not. I'm not an expert on RF, but my understanding is that control signals already share the same frequency band. However, each Tx uniquely encodes its signal specifically for its paired Rx. The codes are set up during the pairing process. If you want to learn more about it, read up on Code-Division Multiple Access, though I'm not sure if that's the exact method still used.

>>2609322
Why they never go fixed wing? Just one motor, higher payload, one or two PG7 heads, super cheap and faster. You could probably even put a complete recoilless under it and make it more than single use. Kind of like Smart155 just with RC.

>>2612246
They used to fly pic related. Fixed wing, single motor in the back. But after they spent the initial batch, I think they abandoned this design because I haven't seen them in use for months.
They switched to a Lancet-3 drone which has 4 wings and a single motor in the back.
>The Lancet has a rather unusual shape. Two pairs of X-shaped wings are installed at the front and rear of the fuselage. It’s powered by an electric motor that drives a two-bladed propeller located at the rear. The standard version has a maximum range of 40 km and an endurance of around 40 minutes.

It's a really weird design but you can't argue with the effectiveness and success they've had with them. I've even seen a video of it successfully trailing and attacking a fast-moving armored SAM system.

I wonder why no one else has tried this "double X wing" design.

I guess they settled on DJI Mavic with grenades (commercially made, cheap, good optics), Lancet-3 for armored targets, and these Chimera7 quads with mortars are the new type they're fielding and trying out.

>>2612231
> each Tx uniquely encodes its signal specifically for its paired Rx
So if you sniff one command you can send it repeatedly and drone wont be able to distinguish between real controller and the copy?

>>2612257
Just like that but with low range DIY parts for super cheap and repurposed sowjet warheads. Lancet drones are way too expensive to use for everyday targets like with artillery. No need for 40km range though when you're 500m from the hostile trenches.

I liked the development of rifle grenade dropping drones. Just think how many rilfe grenades you can load onto a small SUV. Get a few IR drones with controllers and terrorize the enemy 24/7 for like nothing in money value.

They should definitely start professional production lines for grenades made for that purpose. I think they have to modify the VG25 pretty extensively before they can be used like that.

>>2612261
No, because that's not how RF signals work. A transmitter constantly broadcasts a coded signal, and modulates 'commands' (changes in values, really) over that code. The code is longer than the command, so even if a command is sent multiple times, back to back, it would appear different to over-the-air observers who don't have the code. The paired receiver, which does have the code, is able to demodulate and see the original commands though. This was all invented decades ago to prevent eavesdropping and spoofing.

>>2612116
I only brought that up as an example of signals bleeding over. Never did I claim that the video signal was creeping a whole 4GHz away from its target.

>>2612263
>Just like that but with low range DIY parts for super cheap and repurposed sowjet warheads
I'm sure they're working on something. Some Ukrainians reported they found some prototypes made from compressed/laminated cardboard on the battlefield.
Someone was taking cardboard, compressing it in a mold, laminating it with epoxy and encasing the mortar with this cardboard delta-wing.

Shooting stuff out of a rifle impacts a lot of stress on smaller drones. I think SwitchBlade did something like this but they abandoned the idea.

I think this will be the last conflict without autonomous AI killer drones. Upcoming wars will look way different.

>>2612106
The point wasn't to show a solution but to show what it caused. Why do you think I timestamped the link?

>>2612289
>Someone was taking cardboard, compressing it in a mold, laminating it with epoxy and encasing the mortar with this cardboard delta-wing.
Nice


>I think this will be the last conflict without autonomous AI killer drones. Upcoming wars will look way different.
For sure. Maybe even in this war if it goes on for another few years. Reminds me of some short film where they had hollow charge mini drones to kill college students. Forgot what it was called.

>>2612226
Here's my experience with it.
>be flying tiny quad in yard
>FrSky transmitter at 200mW
>failsafe behind house almost every time I try
>get ELRS and run dynamic power
>signal never exceeds 25mW and only loses 5% in worst case
That's not even getting into the swamp of various protocol versions and their habit of trying to push other standards off of their transmitters despite full hardware compatibility. Nobody likes them because they earned it.

>>2612294
>For sure. Maybe even in this war if it goes on for another few years. Reminds me of some short film where they had hollow charge mini drones to kill college students. Forgot what it was called.
I don't know if it will happen that fast but who knows! AI is moving at breakneck speed now.
I think this is the killer drone vid: https://www.youtube.com/watch?v=TlO2gcs1YvM

>>2612301
At least targeting heat signatures in designated areas would be easily possible right now.

Physics an engineering anons I'm the known.
Are there any exciting advancements known to come in signals and batteries? I want to travel far off with minimal loss of resolution and dead batteries
Ik it's sci-fi but it would be cool to travel across multiple states with good views on an FPV drone. How far can military grade drones/UAVs travel?

>>2612388
The only way you're pulling off that range is to go really big, but you're still not going to get low latency video. Plus there's all the government officials with a stick up their ass about long range UAVs.

>>2612388
It's barely plausible deniability with a 7" LR, there is no way you are claiming to be within LOS one state over. Other than that, it's totally doable with one of those control/video links that runs off the cell tower network.

>>2612295
This was my exact experience as well, and yes, FrSky being greedy yellow jews re: their protocol compatibility is what made me buy a Crossfire module and never look back.

>>2612439
I fly a fat 7 inch quad and I can't see it going any further than 10 miles out on the best batteries it can carry. Crossing whole states is basically impossible for a quad unless we start using something seriously exotic to power it.

>>2612295
>>2612439

People love to parrot the whole 'FrSky intentionally break backward compatibility' line, but the reality is that they've actually gone out of their way to ensure backward compatibility, even with some of their oldest discontinued products.

The reality is that there are two protocols & you're pretty much free to choose whichever you want.

All of my ancient X series receivers & my original X9D got ACCST v2 firmwares, even though they'd been discontinued for years.

All of my original R9 receivers that predate the release of ACCESS, got ACCESS firmwares. Even the ones that have been discontinued.

All of my newer R9 receivers that I bought since the release of ACCESS, also have ACCST firmware.

I've been using FrSky since 2015, when the X9D was the go-to. I've had literally zero backwards compatibility issues.

I'm still using X series receivers I bought in 2015 with my brand new X-Lite Pro & I can even run the new ACCST v2 firmware on them if I want - but I'm not forced to.

I'm running ACCESS firmware on old R9 receivers that were released before ACCESS even existed. And I can use my newest R9 receivers with my old R9 module because they also have ACCST firmwares.

But sure, FrSky is going out of their way to screw me over by breaking backwards compatibility.

>>2612455
Wow! They have backwards compatibility for their own crap! Meanwhile, I can just take a Radiomaster transmitter and plug modules into it to use any standard I like. You keep enjoying your failsafes buddy. I'll be flying out 5-6 miles on cheap ELRS equipment without worrying about a thing.

>>2612000
>QX7
yes, see: https://edgetx.org/supportedradios
you'll want to upgrade the firmware to that if you're not already on it, then it's just a matter of plugging in/gluing and wiring any tx module you like and following "how to do X in edgetx". pro tip, you don't NEED an expensive 1W tx for good range, 250mW is plenty and if you're used to frsky shit then the 10mW setting is still a step up

>>2612473
>Meanwhile, I can just take a Radiomaster transmitter and plug modules into it to use any standard I like

You can do that with literally any transmitter with a module bay, including any FrSky transmitter. That's the whole point of having a module bay & using open source software like OpenTX/EdgeTX.

>You keep enjoying your failsafes buddy. I'll be flying out 5-6 miles on cheap ELRS equipment

I haven't had a failsafe since I switched to 900MHz over 5 years ago.

Guys I am a total newfag and I picked up a Radiomaster Zorro 4-in-1. I wanna use this with some simulations before getting a real drone, but I cannot for the life of me get the calibration working right in FPV SkyDive.
I set the radio up following some Youtube tutorials and all the switch configurations seem to be fine, but when I do my calibration in FPV Skydive I always get a nonspecific error saying that there's something wrong with the calibration.
Any tips?

>>2612476
Did you calibrate your sticks on the transmitter itself? I've got a Radiomaster TX12 which should handle the HID driver the same way, and it worked just fine.

>>2612477
I haven't messed with the calibration of the sticks, but the display on the radio itself reads all zeroes across the top for pitch/yaw etc. and I've tried moving the throttle to 0, -100, and 100 (according to the display and the game config screen) but I'm still getting the same error.

>>2612479
Just tried it myself, and while the calibration process is retarded, it did ultimately work fine. Not sure what you're running into. All that said, I was also reminded of how shitty the physics of FPV.SkyDive are. It feels nothing like the real deal, and I fly everything from 1.6 to 7 inch quads.

>>2612474
Thanks for that link. I'll order a module and get edge.

I think I fried my drone. I got a mobula7 and it seems the motors dont work, when I select the motor reorder stuff in BF just nothing happens. And when I spin them up seperatly in BF they kinda work but when I arm them they just spazz out for a bit then stop turning or dont turn at all

>>2612518
Do some of them work, or none at all?

>>2612290
I've watched it. It's a faulty or bad hardware as I said. That's why you buy DJI and not some sketchy knock offs.

>>2612529
Oh yeah, do things the Apple way and be locked in forever. Thing is, I easily got around that issue, and the second version doesn't have the issue at all. These things haven't even been on the market for a full year, so quit acting like they're just going to directly compete with stuff that has had years to mature with a massive budget. At least they were willing to give us a proper OSD when we asked for it. DJI only did it after competition showed up.

>>2612530
I use smartphone on android, and its radio module doesn't interfere with its GPS somehow. Anyway if they solved it in second version than it's fine. Do they provide the same transmitting power as dji though?

>>2612534
Up to 1200mW. They're still sorting out the high bitrate mode, but things are making relatively rapid progress. Also their latest camera is absolutely insane in low light. It will work in all but the darkest of conditions, and I'm not exaggerating. They used some big ass Sony sensor in it.

>>2612485
Is there another sim you would recommend?

>>2612527
On the slider in BF where you can spin them up they all worked kinda the same but I tested it again yesterday and some of them sounded weaker. I changed the power plug on the FC and I might have fried the board but I honestly dont know because the motors seem(ed) fine when testing them on the slider

>>2612476
Why not the elrs version and Im using velocidrone which seems pretty nice and from what I hear its the most accurate one but I think it dosent look as good as others

Can you fly DJI fpv systems using this controller?

>>2612653
No.

>>2612664
Shame, I find it retarded to use massive goggles with huge controller for a tiny whoop.

>>2612666
Spoken like someone who has never tried it. Have FPV, you drone incel.

>>2612392
>>2612439
>>2612454
Nuclear powered drones when?

>>2612553
Most people say VelociDrone is excellent, but I haven't tried it yet so can't personally say. Have tried Liftoff and it was considerably better.

Obviously, nothing is going to feel bang on, but SkyDive feels like you're flying a 5 incher on a half charged 3S pack in air that's both too thick or too thin whenever it feels like switching. Even my 3 inch quad pulls out of dives better by a long shot.

>>2612596
Very odd. It would be pretty understandable if Betaflight or just one or two ESCs were acting up, but the whole lot of them is very strange. Since you still have access to Betaflight, the flight controller is clearly still operating. Was there any exposure to moisture? I've had my Mobula get packed with snow, act up a bit, and perk right back up with some time in the heat.

>>2612666
You're trying to put DJI on a tinywhoop? Do you have any idea of the weight budget you're working with?

>>2612783
I'm not trying anything, but planing to buy one with dji onboard. Last video of Joshua Barnwell (or whatever his name is) shows one of these whoops.

I
Fly
DJI

>>2612726
They make those, but their speciality is starting at high altitudes and doing a dive.

>>2612804
You can get a cinewhoop that'll carry it okay, but most of the stuff talked about in that video has a dry weight of 18-28g. A naked Vista (heatsink removed) weighs 9g. You'll turn something that flies sorta okay into something that can't power loop to save its life, and will have shitty flight times. That's why most of them still pack analog. You can have that for under 2g.

>>2612826
Shitty power to weight ratio. Have never seen one catch itself before.

For a lot of the racing courses on velocidrone, like the one from this (last?) Week, it's very difficult for me to make those really sharp turns, 180s, with the default drone. Is it just a matter of controlling velocity to not over shoot better and what not, or are different courses designed for different sized drones? The indoor ice rink one seemed a bit easier on a 3 incher

>>2612765
>>2612485
I picked up Velocidrone after watching some reviews of sims and I got the Zorro working fine now.
Wew...this shit is a little harder than I expected it to be. I might just be clumsy and retarded though. It took me a little bit just to fly some laps around a field without slamming the drone into the ground every time.

>>2612059
>Will they be $700?
No they were 495 for a limited time and the 599 is the standard price. And I think the goggle hardware is now pretty solid.
>Now I'm not sure the low latency is worth the low resolution compared to dji
Price per quad they are about the same my main reason not going dji was bcs of the fuckery dji is doing with their product releases, limiting the stuff you can do and replacments. Im hoping that in the future we see way more hdzero gear from different manufacturers like it is with analog now if that happens im happy I went with hdzero also the latency was also a plus but idk if dji is really that bad or you will notice a big difference.

>>2612782
Ive never flown it and yeah its weird. Picrel is what i meant i was able to control all the motors here but now it looks like two of them also have less power even here

>>2611709
I noticed that there is a dead zone right about the red circle here, that no matter where I fly from (yellow dudes), I lose RX. I wonder if the baseball backstop is acting as some sort of Parabolic antenna to other stray wifi signals or whatnot and focusing them there or something. Still switching to ELRS hardware though, because I'm tired of frsky binding and firmware crap.

>>2611709
I noticed that there is a dead zone right about the red circle here, that no matter where I fly from (yellow dudes), I lose RX. I wonder if the baseball backstop is acting as some sort of Parabolic antenna to other stray wifi signals or whatnot and focusing them there or something. Still switching to ELRS hardware though, because I'm tired of frsky binding and firmware crap.

>>2613092
Go stand in the red circle, I dare you.

>>2612976
Don't worry bro, it took me two hours to even manage normal flight in the sim. Just keep at it and let your hands learn the controls. The only person I've ever seen do halfway well with in the first 5 minutes was my bro. Blew my mind into orbit.

Why you learn in sim instead of whoops? You can crush them as many times as yiu want, they won't break.

Looking at scratch building an r/c aircraft for the first time.

My main focus are scale types and I have a good deal of experience with single and twin GA models (Cessna, Piper, etc.). Additionally, I have had a lot of fun flying biplanes too, but I am looking for something relatively easy to construct, so the processes of squaring, aligning and staggering wings relative to each other is out of the question.

I am able to get balsa wood, basswood, foam board, coreflute and cardboard, but I cannot seem to find light plywood in town. I am not willing to order on-line.

I am currently eyeing the following types:
Aeronca 7AC Champ
Cessna 120/140/170/180/185
Cessna 150/152/172/175/177 (already have a 182)
ERCO Ercoupe
Beechcraft Musketeer
Luscombe Silvaire

There are other types too, but I am just looking for any input from the guys on here on the subject selection. Once that is done, I will sketch the design and find the mean aerodynamic center, as well as devise a method of construction.

>>2613212
>check out FliteTest's builds. THey have free plans available for printing and cutting. They use foam board from the dollar store. https://www.flitetest.com/articles?grid=true#/textSearch=FTScratchBuild

>>2613215
I was just checking them out. In fact, their channel was their inspiration for me to go ahead and post here for building advice.

Just found a similar article from them titled "How to Build Anything with Foam Board".

>>2613212
craft stores like Michaels or Joann's will have light plywood.

>>2613302
My Michael's was out of stock. I did not try Jo-Ann, though.

>>2613306
Good luck, Anon.

This 3" bitch's bastard of a whore goes like a godamn raped ape strapped to a 450mAh 3S. Had to turn the master multiplier down to .4 and the I-term down to .5, but it finally flies somewhat controllably, and without fly-aways, as long as I keep it under 30% throttle (with 6500kv motors). I was on 2S 650mAh before, and it felt plenty fast, and I still have some 4S 450mAH batteries that the AIO can SUPPOSEDLY handle, but already this thing feels quicker than my 5" racer.

>>2613450
You'll probably cook the motors on 4S. Think the highest kv I've ever seen somebody successfully run 4S on was 4600. Sounds like good times though!

>>2613576
>>2613450
Imagine if manufacturers would use proper Voltage graphs and maximum allowed Voltage vqlues instead of zoomer-friendly KV and 3S. That's too easy, won't sell that good.

>>2613583
Usually the goal is to aim for an RPM target. You do volts*kv=RPM. The usual target is around 55,000 RPM.

>>2613583
Imagine if it was a lot more complex than that & depended massively upon prop choice, craft weight, style of flying & duty cycle, etc.

>>2613586
I forgot to mention that the 55k target is for 5 inch props. When you go smaller, higher RPMs is desirable. Tinywhoop props are often geared for over 100k, while 7 inches will often be in the 25-35k range. It's just something you gotta learn to feel out unless you wanna learn all the completed math around it.

>>2613586
That's marketing bullshit, KV is imaginary number, if you'd actually measure the dependency RPM vs Volts you'd get nonlinear graph. It's just a nice number in order to stay zoomer-friendly on the popular drone market.

>>2613604
>>2613607
Do not spread your bullshit please, KV meant to be a no load value. So props, drone types etc don't matter, it's just a test stand value with naked motor shaft.

>>2613609
KV isn't supposed to be super scientific, it's supposed to enable quick & easy comparisons between motors without having to reference graphs.

If you really care about that sort of thing, any reputable manufacturer publishes voltage/current/thrust tables & plots for various props.

What exactly would having maximum allowed voltage values give you? The voltage the windings can withstand before their insulation starts to break down is fairly meaningless, considering you can bake the motor at substantially lower voltages just by overpropping it & ragging it to shit.

>>2613626
> If you really care about that sort of thing, any reputable manufacturer publishes voltage/current/thrust tables & plots for various props.
Can you name one or two?

> What exactly would having maximum allowed voltage values give you?
Kek should tell that to actual manufacturers of electronic components, they don't need those pesky numbers in datasheets.

>>2613635
>Can you name one or two?

Literally any manufacturer except the no-name AliExpress shit? T-Motor, Sunnysky, BrotherHobby, you name it.

>Kek should tell that to actual manufacturers of electronic components, they don't need those pesky numbers in datasheets.

A motor is not a fucking passive.

>>2613635
Dude, who pissed in your Cheerios? All you talk about is how everything is shit, or hating zoomers. This isn't /pol/. We're not going to dump on you for having an opinion. This is a place to chill and share info and ideas. I mean, you can be worked up if you want, but you don't actually need to be.

>>2613635
>Kek should tell that to actual manufacturers of electronic components, they don't need those pesky numbers in datasheets.

What would you even define as "maximum voltage" for a motor? The possibly multi-kilovolt value you get from the winding insulation? That's a worthless spec that doesn't actually tell you anything useful. Motors are rarely, if ever, given a "maximum voltage" because it's a non-factor in determining the operating limits of a given motor. Heat from current is the primary limiting factor, as well as RPM limits derived from mechanical limits of the rotor assembly and bearings.

At best, you'll get something along the lines of "operating voltage", but that's not a hard limit. You can adjust up or down pretty much as much as you want, as long as other mechanical and thermal limits are respected and any additional wear (like brushes and bearings) is taken into consideration.

>>2613681
> Literally any manufacturer except the no-name AliExpress shit? T-Motor, Sunnysky, BrotherHobby, you name it.
I don't see voltage graphs for T-Motor motors https://store.tmotor.com/goods-438-Antigravity+MN4004+KV300+-+2PCSSET.html

I don't see voltage graphs for Sunnysky motors https://sunnyskyusa.com/collections/v-motors/products/sunnysky-v2806-motor

I don't see voltage graphs for BrotherHobby motors https://www.brotherhobbystore.com/products/reunion-2318-motor-151

So basically there's no info about real voltage vs RPM relationship provided by reputable manufacturers. All we have is useless tests made for different randomly chosen props (it's different for every motor, so there's no single point of reference).

>>2613728
nta, but isn't this what you're looking for? it's on the tmotor page you linked.

>>2613785
Don't mind him. He's just being a nog and crying about motors not being easy, like TV. The whites and Asians don't like it when he gets ahead.

>>2613785
No, obviously. Explanation at the end of last post.

>>2613931
Funny that professional UAV manufacturers seem perfectly fine building their platforms without that information. Maybe because it’s fucking pointless & you’re just obsessing over something you don’t really understand?

>>2613728
>So basically there's no info about real voltage vs RPM relationship

Who cares? That information becomes meaningless as soon as you load the motor.

> All we have is useless tests made for different randomly chosen props

You mean empirical data that has real world applicability because they chose props that are commonly used/recommended for the applications the motor is intended for?

>>2613960
Funny that you try to push narrative about complexity, yet the motor manufacturers give straight away thrust numbers so it's easy for a zoomer to build his drone without knowing jack shit about electric motors. However that is exactly the problem, unless you buy proprietary props from the same manufacturer you can't choose the motors efficiently because they refuse to give the actual numbers of the motor itself.

Professional UAV manufacturers just buy tons of them and conduct tests with their own props or in their own use case, and later those motors accumulate on the shelves.

>>2613986
> > Who cares? That information becomes meaningless as soon as you load the motor.
That's why you need graphs for torque vs current.

> You mean empirical data that has real world applicability because they chose props that are commonly used/recommended for the applications the motor is intended for?
Yeah it's good if you are zoomer and don't know what torque means. Then you just open this table and choose the motor+prop with thrust you like. Wanna use it in wheeled vehicle? Nah fuck you, buy all of them and test them yourself, we don't provide motor specs. Wanna use it in a robot leg joint? Mh-mh nigger, buy all of them and test them for torque yourself. Would like to use prop from another manufacturer with different number of blades? Well good luck expecting the numbers you planned cause we encrypted the data so you can't do it efficiently. I guess you are all americans who love to protect companies instead of the end users.

>>2613997
What's it like being so hung up about something literally nobody else gives two shits about?

Do you actually *do* anything in this hobby, or do you just rant on an anonymous anime image board about it?

>Professional UAV manufacturers just buy tons of them and conduct tests with their own props or in their own use case, and later those motors accumulate on the shelves.

Professional UAV manufacturers chose a combination of motor & prop from a vendor that suits their needs.

>Wanna use it in wheeled vehicle?
>Wanna use it in a robot leg joint?

Stop looking at motors marketed for use as UAV propulsion then.

I'm stupid, my new naked gopro is the reason my GPS is cutting out. I thought as the regular gopro worked fine this should too. I guess with less casing there is more interference.
What can I do? I need the GPS.
Do any models of GPS handle interference better?
It's already at the back of the quad with the gopro at the front, so i can't increase the separation by much.

>>2614178
The problem is the processor in the GoPro operates at a similar frequency to GPS signals (~1.5GHz) & creates noise that negatively impacts the GPS.

There's not a whole lot you can do. GPS signals are incredibly weak by the time they've beamed down from space & you're sticking a source of interference right next to the receiver.

>>2614223
> There's not a whole lot you can do
And why exactly you can't encase the GoPro in aluminum foil and ground it? This should stop the radio waves going outside.

Anyone feel like the hobby has come to be filled with a lot of mouth breathers, especially with aircraft. I was browsing for forums and people are just raving that every new (E-Flite, Freewing) product is the second coming of Christ, yet most of them do not know how to set travels to their likings or find the CG mathematically, let alone the MAC (though I admit to using the cheat as to finding out where the MAC is).

>>2614248
If you don't mind an ugly solution that needs replacing, maybe.

>>2614284
It's because the hobby has become overtaken by consooomers. They feel good about their post and gain feelings of accomplishment based on their consumption or buying something, not the product of their work.

>>2614248
Maybe I'll try that as i don't see any other options. Although it might restrict airflow to the vents. How do i ground it?

>>2614290
Damn. Even as a person who used to buy ARFs (Parkzone complete airframe kits, specifically), seeing a lot of receiver read/transmitter ready stuff makes me sad. People go about their hobby not knowing the motor/engine, servos or even receiver.

I am starting my building journey (>>2613212
is me), but I am not set on a subject quite yet, I will probably go to Dollar Tree later to look at the foam board. Dollar General has sheets that are cheaper cheaper, but the local one had only tri-fold boards for science fair projects and they were $5 per sheet.

>>2614284
Don't let inexperienced people enjoying the hobby manifest into negative emotions anon.

>>2614306
Gatekeeping and keeping out normies is the only way hobbies survive.

>>2614306
Thanks anon. Just times change, when I started I was doing things the easy way, but there still needed to be some calculations and sometimes even math involved. Now people just take aircraft out of the box and watch them fly and (often) crash. I just wished they learned the skills of set up and proper flying techniques.

For example, one guy I know, gouged out a tin of foam in a then-new Parkzone T-28, gave it a new high torque motor and ran it on 6S, it flew for two minutes before the prop (still stock) sheared a blade, there were also stress cracks in the wings, though this could have been from the ground impact. This was 2 or 3 years ago, right before the new E-Flite yellow version came out. I wanted to explain to him that there are special racing propellers are sold for just the sort of set up he had and that such propellers were not all that expensive (starting around $10), but I held my tongue.

>>2614285
>>2614298
That's what we do in guitars as well. Search for copper shielding tape, it's has an adhesive side. I'd argue copper looking GoPro looks cooler that black, but if you don't like it then do it from inside. Small holes for ventilation won't let the 1.5ghz (19 cm) waves go out. I would ground it on controller GND pad but that I don't know for sure.

not sure if I should even speak up after anon raged about casuals and mouth breathers, my approach is half-assing and learning on mistakes, but here it goes. please don't get too annoyed, figuring things through trial and error from scratch is kind of a weird hobby of mine

So, I'm trying to make a plane for some time already, previous attempts were a bit more lame, but in this one I actually got to control it for a while. Looking at webum, do you think this is 100% my mistake as operator (most likely, quite literally never got to fly any real rc plane in my life before this one), or is it possible I've got affected by wind, and I should add some dihedral angle between wings? I was surprised how sudden the spin was, not entirely sure what caused it.

>>2614353
Anon who spoke of mouth breathers here, you are fine because you are doing things yourself. You built an aircraft and learned from experience (versus a book) of what to do.

The people I am talking about are the ones who buy a $600 ready-made aircraft, spend an additional $150 on a motor and ESC, then proceed to crash because of something really stupid (wrong propeller, wrong S count for ESC, etc.).

Trial and error is fine, though. I learned some technical skills through trial and error in a simulator.

>>2614304
Dollar Tree foambard (Adams Redi-Board) is different than foamboard at other stores, not just price, but in weight.

>>2614353
it could have been a few things. I built a few Flite Test planes before I got anything flying well, this is why I usually suggest people buy a trainer and learn to fly before they build one. Your plane is small and light enough that the wind could have tossed it. It also looks like you had some torque roll as it took off so that could have contributed to it as well. You have it flying almost vertical at 0:13. It may have just stalled and dropped a wing. I haven't noticed much effect from dihedral, so I wouldn't worry about that.

>>2614446
Dollar General also sells Adams, unless I am mistaken.

>>2614353
We had big brains invent calculus and all the relevant physical laws of motion in the 1600s, but what it actually took was two bicycle salesmen strapping some wood together to make flight happen. Theory nerds are useful but experimentalists are kings.

>>2614345
That's hilarious!

>>2614178
I don't know what GPS unit you are running, but my iFlight M8Q was having interference problems from my VTX (worked fine unless I plugged the O3 in!), so I swapped it out with a Matek M8Q and now I have no problems getting sats. Could have just been a bad GPS, but I think it was the comb filters on the Matek that solved the problem for me.

Thanks for kind words, everyone.

>>2614446
Then, you'd say my mistake was stalling it, and then it went rolling due to too much motor power + too heavy motor once wings stopped getting enough air to have ailerons actually control the plane?

Alright, ignoring dihedral for now, reprinting it as it is. I'll have a much better chance soon, I've ordered an actual radio, webm attempt was controlled over smartphone touchscreen. Plane has a small arduino that connects to phone over wifi and talks through basic UDP stream of four numbers that control motor and servos, it's absolutely trash, will be much better with nice and accurate physical sticks.

>>2614437
>I learned some technical skills through trial and error in a simulator.
That's a brilliant idea, I've found some PicaSim and when I'm trying to recreate the scenario, i'm crashing a plane in a way not too dissimilar to what I did on webm, except without provoking barrel roll. Gonna learn stuff there first, will be much less annoying than reprinting it repeatedly.

>>2614606
post some actual stats about the plane. You'll want to look at wing loading, make sure the CG is right, make sure the control surfaces are big enough, etc.
>webm attempt was controlled over smartphone touchscreen
nigga

>>2614749
>stats
Not sure what to mention. It weighs 1.15kg with everything on it, chord length is around 15.5cm, wingspan is 95cm, proportions are based on info in here:
>https://rcplanes.online/design.htm
I think one issue (that could spin my plane uncontrollably) might be a motor that's either too heavy or too strong. Motor is AeroStar 3536-850KV. Though I got a feeling I was severely overdoing throttle on webm flight, played around in sim and it seems like I was greatly overexaggerating the power necessary to maintain flight.

>CG is right
I've balanced it by placing my fingers around 15%-20% length under wings, then moving stuff around until it's not tilting to either side. Not sure how precise it should be, but that's the method I've used.

>touchscreen
Well, it was the most readily available method I had around, arduinos were here for me, actual radio would have to be purchased and delivered to me. But now I've ordered one anyway, it'll be better now.

>>2614352
Thanks anon i will try that

>>2614592
Thanks I'll try a Matek too

how do you guys find new ripping spots? spend so much time on google maps and driving out to random places.
We need a trialforks for drones.

>>2614854
No problem. It kinda takes around 3 minutes to go to kitchen and grab some foil though.

Can you at least tell of it worked?

Does anyone have a good beginners guide for fixed wing FPVs? I have built FPV quadcopters before but never any fixed wing stuff. It looks a bit more challenging. I am looking at building something off the AR Wing Pro frame but have no idea where to start. Google has some decent results but there aren't very many guides that are for entry level fixed wing stuff

>>2614916
here. He has other videos that are more specific on wiring, but it's one of the best channels for fixed wing.
https://youtu.be/VwnSuHeAWKo

>>2614876
I use a different quad and fly for miles to check for spots. It reliably hits 5 miles of video range, so it gives me a pretty fair amount of freedom to float around and seek out good places.

>>2614916
Painless360 is a pretty good source for info, and he's very happy to answer questions.

>>2614916
>>2614989
Painless360 is good, so is RCModelReviews, but Bruce's videos are a little broader and not quadcopter specific.

Can anyone redpill me on new E-Flite? They lost my business around 2019 for releasing crap like the Osprey (bad hover mode), EC-1500 (unresolved ESC fire hazard) and Havoc (too many problems to list).

>>2615031
Oh yeah, he's an excellent source of info! One of the best old dudes I know of!

>>2614909
I thought copper was a requirement so i ordered some copper tape. I'll try in a few days

Why would a matek M10Q gps only support betaflight 4.3+? I don't really want to upgrade from 4.2
Can't find the M80Q in stock anywhere

>>2615457
Presumably because the revision of the UBX protocol it uses is too recent for BF <4.3.

>>2615457
4.3 actually flies noticably better than 4.2x and below, and 4.4 gives you much better RTH ability, which you are going to want if you are running a GPS unit anyways.
Just screenshot all your old Betaflight tabs, flash to 4.4.1, and use them to set everything up quickly and easily (since you can't just CLI Dump your way through)

new bread
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