/diy/ - Do-It-Yourself

>>1730917
Back around the turn of the century there was a turntable made for cars, supposedly very difficult to make it skip. It was some Japanese company, smaller one. All I can remember.

>>1730917
Get a better table (used),
Adjust tracking force down to max of whatever cart you have
place on foam rubber with a layer of denser rubber below, idealy one density for each type of jolt it will recieve but i think some mat and a sheet of matress foam will suffice.

Or (/and) get a linear tracking table from the 80s/90s

>>1730947
Ya they even made handheld walkman types, all of linear traxking design

>>1730917
Buy a waterbed and then play the records on that

>>1730917
Your record player is a piece of shit, get a good one. Put it on its own piece of furniture, not hanging off the side of your Ostadig Ikea table. Picture related. Also what moron places a thing the makes smoke and ash RIGHT NEXT to something that is highly susceptible to smoke and ash? I thought you new age fuckwits were all about the "purity" of vinyl or some shit. It seems more likely that you are some hipster shithead that has no clue about how to actually use records.

>>1730917
Put pennies on the arm above the needle.
>>1730960
Hey cheap record players help keep vinyl alive who cares?

>>1730856
>Chinks

This is the transformer in question

power supply in schematic

>>1730852
>Amplifier uses +/-36V
>Transformer gives 31V, when converted to DC gives ~34 volts.

the best that transformer can give you is +/-17V when converted properly to DC if it has center tap.

>What would be consequences of using lower voltage than recommended?
depends on the amplifier, if it doesn't need another stage to be powered with some specific voltage it only will give you less output power, ie. not so lowd as you want, maybe half power output.

Otherwise, look up for a appropriate transformer.
best option: 1 tranformer with center tap that gives you 36VAC in each side terminal.
not best but possible option: 2 single transformers (identical, with no center tap) that gives you 36V AC as output.

>Also how can I get negative voltage from this.

look for LM78XX and LM79XX voltage regulators to get an idea.

>>1730875
Didnt see the 9" table thing
That's pretty rough

>>1730847
forearm forklift?

>>1730886
>forearm forklift?
All the pictures I see involve two people, can you use it by yourself?

you need a toe jack son

>>1730879
Was going to recommend this. Between all the heat pump accounts my company services we care for roughly 2500 heat pumps and about 1400 of them are the chassis style ones you seem to be dealing with. We frequently use lift tables/carts to swap chassis from rooms and onto our work benches at the sites.

>>1730844
NOAA Weather Sat interception.
If SHTF and you have a working laptop, you can still see the weather coming your way.

>>1730844
I've played with it. Have done the noaa sat image thing, listened in on police trunked radio, decoded pagers (mostly security systems now a days), done AIS and plane tracking... what else... eh some other stuff. was fun for a bit but quickly got boring. They're now gathering dust in a box.

>>1730844
It'd be goat if 90's cordless phones were still around

>>1730776
No clue, could you cut and bend from a sheet then seperatly make and glue on the louvers?

I thought about doing the same thing to make a copy of some rear louvers i own. The only thing i could think of was making a giant vacuum casting of it, or finding someone with an original to make a giant mold of it. You could try your hand at making a copy with whatever materials you have then molding it from the correct type of materials but its gonna be a lot of work no matter what you do.

>>1730776
a mold from fiberglass on top of the original part, then pour the whole thing in clear expoy. Do practice with smaller stuff first, the curing process needs to be controlled for something that big.

aluminum oxynitride

>>1730776
That cover is made out of thermo-formed polycarbonate and isn't cast. You can't use any other clear plastics aside from polycarbonate since they're going to be far too soft for that type of application.

Thermoforming Polycarbonate is much harder than with other plastics as you can only do it in a narrow temperature range before before you induce bubbling and later carmelization (it turns brown).

Clear cast urethane in't likely to be in a durometer range useful for such a part while still being clear instead of amber. Polyester is too soft and too low of a transition temperature. Cast acrylic is brittle and won't handle the stress of the application.

>>1730671
But why?
Just don't fasten the seatbelt, airbag won't go off.

>>1730707
Airbags have blown out when people have worked on dashboards without removing the fuse first. I higly doubt that they'd have removed the dash while wearing seatbelts.

>>1730684
if the airbag ecu has power it should be performing continuity test to ensure airbag is connected/not deployed.
very common for any work on airbags not only disconnect battery but discharge/short terminals or wait for discharge a few hours.

big question is why do you want it enable/disableable?

least intrusive would be remove airbag and replace with suitable impedance to trick the ecu. depending on your location and use this could get you in a fuckload of trouble under inspection, but so does your original idea.

i have had supplemental service procedures for older cars that insists headlights and ignition must be on before reconnect battery to reduce chance of accidental airbag deploy because of power surges.

if you have a vehicle that is available in opposite hand drive you could frankenstien something with a legit passenger airbag disable switch. you need an opposite drive side ecu if the car is capable of deploying select airbags dependent on impact type, which they all do. but its still fucking sketchy.

>>1730707
>>1730804
I'm short, and from what I've read the airbags are designed with a 177cm standard height. The airbag must be good for any normal drivers, but I don't like to add risks like severed retinas and overall worse head and neck injuries than I'd have without this safety feature.
And of course, it would need to be able to be quickly turned on when switching to a taller driver.

>>1730915
>I don't like to add risks like severed retinas and overall worse head and neck injuries than I'd have without this safety feature.

At least with the airbags disabled, a wreck will take you out of the gene pool.

Find an uni which does research which looks interesting. See what faculty it's being done in. Then don't go there for bachelors, go somewhere cheap and transfer there for masters (assuming you're a burger).

That said, actually designing the batteries for manufacture is going to be mostly mechatronics ... the chemistry is someone else's problem.

>>1730669
>is there any way to practically do this without just getting a 4-year degree in physics?

Study manufacture engineering. You're still going to be learning a combination of math and physics, but it will be far more practical.

The other alternative is to study business. The economics of power distribution is changing fundamentally. People and things will be becoming far more mobile over the next 50 years.

And what you will learn about global economics and finance is relevant to understanding how the materials are sourced in politically unstable regions, or how to understand the changes in population dynamics. Just every time you have an elective, study something related to batteries.

Find a professor who does batteries, and talk to them.

>>1730669
Start here https://batteryuniversity.com/

Thank me later.

k.

>>1730660
based

Currently a software engineer at a manufacturing plant, my boss is trying to convince me to transition into controls engineering. Does this shit pay well and is it difficult? Their current controls engineer is a local contractor. I can learn anything, I really only care about money and I hate repetition. Good idea to switch?

whoops forgot to add this link

https://www.tpctraining.com/pages/instrumentation-control-systems-technician-training

>>1730893
>my boss is trying to convince me to transition into controls engineering.

What does controls engineering entail? Designing control circuits and programs for some techie to setup and install?

>>1730872
>Personally, I'd buy the parts separately from automationdirect.com, except for the plc. They have all the sensors/switches that you could ever want. This also works as bonus training because half your job working with plc's is figuring out exactly what parts you need to buy.

Okay, so I better start learning about all of Allen Bradley's product lines, same goes for Siemens, Omron, etc for an added bonus, no?

>>1730567
Automation direct has cheap little plcs for under $200 that come with free software.

>>1730561
>unironically not leaning left

Go clutch your bible somewhere else grandpa

I refuse to integrate myself into the collective hivemind of Twitter a.k.a "the beast"

>>1730561
>get your lazy ass on twitter

Only if you can tell me how to bypass the phone verification during registration, faggot and no I'm not going to buy a burner phone just to btfo libtards and bots, moron.

>>1730604
>I refuse to integrate myself into the collective hivemind of Twitter a.k.a "the beast"

Who the fuck uses twatter anyway other than SanFran libtards and a few /pol/tards?

>>1730561
Sounds lame and unoriginal

>>1730499
>>1730832
>>1730759
OP if you want highly detailed instructions post a picture of your mic and I'll hold you hand though the entire process just to cuck these fags.

>>1730874
it's not like it's even remotely difficult, it's just the principal. Explaining how to may not even help, sell a kit.

Nobody on /o/ will help you install a giant wing on your honda(actually, they won't help with anything as 5% of that board actualy own cars)
Nobody on /lgbt/ will help you setup a pride rally
... I want a list of these for all boards now ...

>>1730952
Nobody on /pol/ has sunscreen recommendations...

>>1730748
FRS Max wattage : 2
CB Max wattage : 4
Ham Max wattage : 1,500

>>1730967
Learn to read, dipshit.

>>1730431
nice thumbnail.

Yes. The heating of the liquid is just to quicken evaporation. There is no chemical reaction taking place. Potassium hydroxide is normally mined but evaporite dissolution, albeit slow, should ultimatum yield the same result.

>>1730498
Thanks!!

>>1730501
>Can I make it strong enough to get the soap to set?
I should add, I've never made soap and don't know how 'strong' it needs to be. I do know that if you leave a solution with KOH in it out, it will eventually crystallize as the water evaporates. I'm guessing that's how you're suppose to separate the KOH from the other contaminants in the wood ash.

>>1730514
Thanks also good to know

>>1730383
is it for bongs/similar?

>>1730388
This is the correct answer.

what is this?

>>1730399
An inline filter. I used them when I worked at a movie theatre. Had them on the oil lines for the poppers and on the butter warmers.

thankyou btw

>>1730364
buy a servo with the exact force you need.
or, some kind of switch/spring feedback to say when the applied force required is met. the spring is tuned to the force, the action overcomes the spring to close the switch.

>>1730364
load cell and pid loop

>>1730364
There are feedback servos that will give position data back to your microcontroller. It's positional feedback instead of force, but it might be close enough for your purposes. They cost a bit more than normal hobby servos though.

>>1730324
its a standard port
the pins are always in the same place.
if you are too retarded to plug in a universal obd2 usb chinese elm327 clone and ask it to automagically go through the different protocols to find out which one your car uses, you can simply look at the connector and see which pins in the car socket are populated and which are not, then look up the connector on google and see which protocol is supported on the populated pin.

it could not be any easier this did not need its own thread.

obd2 is literally made so car mechanics can use it. it is not rocket science. its not any kind of science. its idiot proof. yet somehow you seem to have managed...

>>1730354
Lol what a fucking cunt.

>>1730794
add a shot of black and that's it

Hand tools should do it

>>1730319
Oughtta do'er

>>1730319
Unironically commit suicide.

do a big wee wee