/diy/ - Do It Yourself

It just seems kind of funny that you're telling people to avoid buying 3D printed parts and then in the next sentence tell them to buy laser cut aluminum

>>691544
>tell them to buy laser cut aluminum
I don't say "laser cut aluminum", you can use acrylic or MDF. You need some custom parts and laser cutting is much cheaper than 3D printing and the parts can be made at home while 3D parts can be only made with 3D printing or you have to cheat like with repstraps. And a 3D printer having to rely on 3D printed parts just sounds stupid for me.

>>691537
This makes me want to learn how to make cool stuff in sketchup. How much time would i need to design something like this compared to a real CAD system like Solidworks or ProE?

>>691574
here, that's all you need for the start
http://www.sketchup.com/learn
You can learn how to use it in 1 day. I first tried Blender but even the basic stuff was terribly overcomplicated.

>>691582
Blender isn't for this kind of thing anyway.
Besides Sketchup, the babby CAD software you're looking for is Autodesk Inventor.
Once you get used to its quirks it's quite simple to get complex shapes in it.
Fortunately it looks like your design philosophy isn't having any of that, so it looks like there wouldn't be any problems.

Well, I submitted it.
www.indiegogo.com/projects/easymake3d-designing-an-easy-to-build-3d-printer/x/8548144

http://upload.wikimedia.org/wikipedia/commons/2/27/ORDbot_quantum.jpg

>>692404
So you haven't even built it? How do you know your concept even holds water?

>>692497
There are other similar printers (that aren't open source) and seem to work just fine.

You haven't even figured out your extruder block. Anyways you wan't money for nothing but documentation?

>>692666
It's supposed to be for the parts. I want to see if a simple normal project can get any money if scammers make millions on crowdfunding and hardly anyone questions it. There's like every month a new 3D printer on Kickstarter which is just cheap garbage and it still makes hundred thousands.

>>692644
There are also similar ones with problems. The dual drive leadscrew thing is something I've seen complaints about due to difficulty in centering the shafts.

>>692766
what this guy said

>>692766
Yeah lots of them use shitty couplers made out of laser cut wood. I'll be using metal flex couplers which should be the best for the job.

>>691594
Inventor is a shit tier CAD program

>>692780
Nah dude
https://www.youtube.com/watch?v=-4uHVuGDxnM

You should realy figure out your cold end, endstopps and cooling.
That stuff is a chore to do if you start building without having it planed.
Your Z-nuts seem faily unplaned too.

Also are you using a paid version of sketchup? Because I think this qualifies as commercial use.

>>693000
Thanks.
>>693132
>Also are you using a paid version of sketchup?
SketchUp 8, it's for commercial use
>Your Z-nuts seem faily unplaned too.
I was planning to use these
http://www.ebay.com/sch/i.html?_odkw=delrin+nuts&_from=R40&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xlow+cost+delrin+nuts&_nkw=low+cost+delrin+nuts&_sacat=0

Anyway, it looks like anything that isn't a big scam or an online shop hasn't a chance to get money. Indiegogo doesn't even show the campaign when searching "3D printer" besides showing lots of crap and it has no chance to get into trending campaigns. I got a comment from a marketing company that offers you boost your campaign with traffic, social networks&co (probably using lots of bots). I guess unless you pay some of these there's no chance. Well I made the campaign to see how this works so I don't waste time and money in the future.
I'll redesign it into a super simple and super cheap version because that's probably the only thing people will care about. Will make an XY-extruder, Z-bed version too.
I was thinking ORD bot would be more popular but when I did an ebay search of sold listings nearly no one buys it or offers it, it's all Makerbot and Ultimaker.

Was sourcing parts and updated it accordingly.

looks wicked.
build one first though.
You were talking about easy to source parts and around $300, but

those lead screw nuts are expensive and not exactly easy to source. for the cost of those nuts, lead screws, couplers and stepper motors, you can just get stepper motors with lead screws integrated into them. for the cost and for the sake of simplicity and ease of use. It would also be a real ass leadscrew and not a threaded rod

same thing with the x axis, for the cost of all those parts, you can (easily) source a rail and carriage and have it be just so much easier to do everything.

and the talk about wobble and couplers. the way some printers avoid the zaxis wobble affecting their prints, is by making the nuts not captive (exactly) to the frame.
http://www.thingiverse.com/thing:40272
>>692847
Inventor is a shit tier CAD program

>>694567
>http://www.thingiverse.com/thing:40272
that's nice
It seems like getting the right rods (unless you buy a reprap rod kit) is as difficult as getting the right rail, but the rails still cost like 2-3x more.

>>694782
It would be silly for any company to sell rods like that, precut. rods are cheaper than rails, but rods+ bearings+rod holders x2 is the same price as 1 rail + carriage. you can get a rail+ carriage for like $45 for 500mm of rail and one carriage

http://us.misumi-ec.com/vona2/mech/M0100000000/M0101000000/
misumi sells things cut to length.

you can just buy a chop saw and make your own kits.

I don't know about smooth rods, but linear rails are often difficult to cut as they are quite hard. I suspect the same for rods.
I used rails scraped from machines sent back by customers and had to take them to someone with the right cutting blades.
Those were Bosch Rexroth ball rails btw.

I'm trying to figure out a simple robust frame because I don't like how big the prusa i3 frame is. I rotated the 2 back supports by 45 degrees, that should work against vibrations in X and Y axis at the same time. It's weaker than then full big frame, but it might be a nice middle road between free hanging Z rods and a big frame.
>>694825
4x bearings =$10
4x holders=$10
2x rods=$10
well yeah

you only need 1 motor with threaded rod and 1 smooth rod. you could have 2 smooth rods but why not space these 3 rods in a triangle pattern from the top view as at the moment you top as it looks like they're all in a straight line. yes i understand the movement of the belt on the top will not effect this axis but it should be taken into account for real world application. and the belt system i assume you're using under the surface the printing will be onto will vibrate effect accuracy if you don't, also mount all three rods(2 smooth 1 threaded) should be attached to the top plate for stability. hope you head my advice it'll make it more stable, smaller without effecting work space, and cheaper.
also nice cad skills dude not bad assemblies.
this site has alot of nice designs that will step on you dreams of doing anything new.
http://reprap.org/wiki/Main_Page

>>695934 yeah i'm this guy
just noticed the crowd saucing why not develop something fully in cad before you start crowd saucing also it's been done so many times it just seems like you're trying to get paid to make yourself a 3D printer. and kinda a half ass effort at it.

>>695938
It was more of a test.

Opinions please: which is better, a traditional X-Y-Z axis printer or a Delta printer?

>>696084
Do 5-axis

>>696090
5-axis would be dreamy (either Printer or Mill), but I'd rather get familiar good with 3-axis printing first

>>696084
XY-Head Z-Bed seems to do better than a Delta.
Assuming a multithreaded rod for Z. Otherwise Z might be a little slow.

Someone who built both on here told the advantages of delta are high Z speed and the looks, but Mounting an direct extruder plus good cooling on a delta can be problematic.