/diy/ - Do It Yourself

Have you seen the $100 Peachy printer.
I doubt you will ever be as innovative as that.
Prove me wrong.
And please make a metal printer for a low price.

>>550306
I actually ordered that. But there are things that I doubt it will do as good as a printter that actually deposits plastic instead of one that use lasers to harden resin.

>>550309
And my idea is based on the rotational base of the top left one in the pic but with different parts for the rest of the printer. It is not as innovative as Peachy but I think it will allow simpler building system and the use of many different colors simultaneously.

>>550306
*cool cool cool*
*Uses an audio waveform*
*Full stop*
*All of my wat*
fucking. A. My USB
My fucking parallel port. What. the. fuck.

>>550409
Control electronics cost money, and audio coils can actually be pretty precise.

My real concern with the Peachy is the mechanical toughness of the resin parts. I'm sure it will be great for trinkets, but can it make a coldend?

>>550312
I'm also interested in cylindrical coordinate printers, but so far Cartesian is king.

Anyway, since peachy makes structures inside a liquid media I think it will have problems making structures like honey comb fillings and other stuff like that. So, any tips to what I should start learning first?

>>550487
Another advantage of the cylindrical coordinate is that the object could be twice the size of the movement of the arm with the extruder.

Searching the web I found this, it is not exactly what I had in mind but it is very close to my idea. But program it should be much more complicated

>>550497
Oh, okay. That's an unusual setup, what would you use as a z-axis?

>But program it should be much more complicated
You'd probably have to write your own gcode slicer.

>>550501
Well, that's why I said that it isn't exactly like that, but the basic idea is.

One f the platforms would move up and down, not sure which one would be more practical, the upper one I assume since it will be lighter.

Bump

>>550497
A cylindrical printer has the problem that the further one is from the center, the less accurate one gets.

>>the only experience I have with creating and programming machines was with those motorized legos with a yellow box when I was a kid.

Then build one out of legos:
http://www.instructables.com/id/Build-a-Polar-3-D-Printer-from-Legos/

>>550487
Resins can be decently strong, many of them are essentially the same stuff in epoxy. One can even make ceramics by embedding ceramic particles in the resin.

>>550492
>> I think it will have problems making structures like honey comb fillings and other stuff like that.
nope, not a problem, one just adds tiny holes to drain the resin

Stereolithography(resin printing) has quite a bit of advantages over FDM can be very accurate and very fast, like VERY FAST!

The only thing holding back resin printing is the cost of resins and the fact that resins degrade when exposed to sunlight(almost like vampires)


OP, this is a bad time to get into the home 3d printing market as there currently is a bubble that is about to burst.

There are more FDM machines on the market than you'd believe and if some big company decides there's a market for home 3d printers and start mass producing them, they will destroy the market for 'amateur made' 3d printers overnight

>>551055
Not OP, but:
>A cylindrical printer has the problem that the further one is from the center, the less accurate one gets.
Eh, not really.
I mean, yes that's technically true, but in reality there is very little limit to how fine you can make the ϑ control, so I doubt it matters much.

I would imagine a bigger issue is the problem of coordinate convergence. Firstly It's very hard to print straight lines near the origin, because you need massive amounts of ϑ rotation for a small amount of radial travel. Secondly, when printing in radial lines the volume of plastic needed per mm travelled varies proportional to your radial distance.

>http://www.instructables.com/id/Build-a-Polar-3-D-Printer-from-Legos/
That's damn cool.

>Resins can be decently strong, many of them are essentially the same stuff in epoxy.
Sure, resins can be strong. What I'm worried about is specifically the strength of the UV setting 3D printable ones.
>One can even make ceramics by embedding ceramic particles in the resin.
Not if you need it to float in saltwater.

>there currently is a bubble that is about to burst.
Can you explain some more about this?
Are you saying the current market for 3D printers (Remember folks, FDM is a registered trademark!) is vulnerable to getting washed out by cheap Chinese printers, or do you actually think prices are inflated ponzi-style thanks to people selling more printers to pay off the initial purchase cost?

>>551055
>>the only experience I have with creating and programming machines was with those motorized legos with a yellow box when I was a kid.

>Then build one out of legos:
>http://www.instructables.com/id/Build-a-Polar-3-D-Printer-from-Legos/
I love legos and all but a machine made out of legos wouldn't be very practical and The legos Were from my school.

>>550492 #
>> I think it will have problems making structures like honey comb fillings and other stuff like that.
nope, not a problem, one just adds tiny holes to drain the resin

>Stereolithography(resin printing) has quite a bit of advantages over FDM can be very accurate and very fast, like VERY FAST!

>The only thing holding back resin printing is the cost of resins and the fact that resins degrade when exposed to sunlight(almost like vampires)
Can they make multi colored objects with resin?

>OP, this is a bad time to get into the home 3d printing market as there currently is a bubble that is about to burst.
But there aren't many people that know about 3D printers outside hobbyist groups.


>There are more FDM machines on the market than you'd believe and if some big company decides there's a market for home 3d printers and start mass producing them, they will destroy the market for 'amateur made' 3d printers overnight
That's why kickstarter.

Also what I learn building this will be helpful in future.

>>550301
>http://www.3ders.org/articles/20130701-reprap-morgan-scara-arm-3d-printer-kit-available.html
Is this your idea op?
>>550497
This looks vaguely like a scara arm

>>551121
>>Not if you need it to float in saltwater.
You don't it's really cheap to add 1 stepper motor.

>>Are you saying the current market for 3D printers (Remember folks, FDM is a registered trademark!) is vulnerable to getting washed out by cheap Chinese printers
3d printing and 3d printer are also registered trademarks.

No, not just Chinese printers, but American made printers. Some big american companies have said that once they see a market for consumer 3d printers, they will take it over.

3d printing hit peak hype a couple of months ago. People currently expect more from 3d printers than they are currently getting. Once people realize this, the market could collapse for a bit.

>>551183
>multi colored objects with resin
yes, pic related

>>That's why kickstarter.
crowd funding is also near peak hype, and could collapse here pretty soon

So you'd better get your printer working here pretty soon

>>551305
No, totally different, but interesting anyway

My idea allow multiple colors with minimal modification.

>>551317
That is far from the complexity of the octopus I posted. I want to see a resin 3D object with colors side by side and not just one on top of the other.

>>551389
This has far more complexity than the octopus

The other is more of a demonstration to show what can be done.

>>551397
Is it controlled or just mixed at random?

>>551408
controlled.

>>551397
>>551410
I just searched the name and Neri Oxman is the chairman of the objet, a fucking expensive professional 3D printer out of reach to common people like us.

That printer works by spraying resin with absurd control.

So no, complex multi-color objects with resin is still impossible for us, common people. Printers like peachy or any other available can't do this.

>>551410
It is only a matter of time before inkjetting resin gets cheap.

In the mean time there's pic related, which is only limited by the fact the researchers were too lazy to dye their resin.

>>551440
>>551424
Here is how much they cost.

>>551442
wow that's pretty cheap for an objet machine. The technology will get cheaper, it's simply a matter of mass producing it.

Did you not see the cheaper version of that in>>551440? It's literally just a RAMPS, some brushes, a DLP projector, and an ultrasonic cleaner.

Now go build your cylindrical machine.

>>551455
>keck

>>551455
They are used machines, new ones should be much more expensive.

>>551455
Oh, it will take some time until I build it. I still have a lot to learn but i might build the machine and look for someone to help with the programming.