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Author Topic: DLP projector based 3D printer kit on indiegogo  (Read 6426 times)

Matt

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DLP projector based 3D printer kit on indiegogo
« on: April 03, 2012, 09:30:18 AM »
Some of you may have already seen the DLP projector based printer that was featured on hackaday several months back. Well, it seems the project is not dead. They just opened an indiegogo.com project for it. The "kit" prices and the software are not cheap but the accuracy they have achieved is nothing short of amazing. Couple that with the fact that there is only precision movement in one axis (Z) and it should be a pretty robust little system. The fact that an entire layer is exposed at once also means that your print time will only depend on the exposure time of the resin used (~8s per layer according to the blog), your z-height step (can vary from 14 microns (!!!) to 200 microns), and the Z-height of your part.


Another interesting aspect is that they are including a formula for the resin itself. Now, hopefully much of this will be released as open source eventually. I think the simplicity of the printer operation will also spin-off copy-cat designs.


Enjoy!
http://www.indiegogo.com/veloso3dprinter


-Matt

da3v

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #1 on: April 03, 2012, 01:14:11 PM »

f00bard

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #2 on: April 03, 2012, 01:29:59 PM »
This might actually be a good use for the half-working HP DLP projector we have, once we get a proper projector for classroommeeting room use.

Matt

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #3 on: April 03, 2012, 02:40:23 PM »
Yeah, I don't really see any value in the more expensive kits they are selling. The printer itself is fairly simple. I think the true value is in the software and the completed controller board. Having a detailed set of instructions to go by doesn't hurt either :) Again, it's expensive but the results they've gotten speak for themselves (assuming it can be reproduced! but one would hope so).


The problem with most open source printer projects I've seen is in the software. Yes, you're free to use whatever you want, but it seems that there isn't one good software to take you from model to print. You have to run the SLA file through some software to heal the mesh, the another one to slice it... Having something fully integrated is nice. Of course, this is just based on information that I've heard/read since I don't actually own a 3D printer. There very well may be a nice integrated software solution out there.


-Matt

da3v

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #4 on: April 03, 2012, 03:34:48 PM »
I haven't spent much time with it yet, but at first glance, netfabb basic (free) seems to do decent repair and slicing.

It would be kinda fun to cobble together an arduino shield that had a stepper driver and a microphone plus some sort of dtmf processing. Then the toolchain could be:
CAD->netfabb or similar->powerpoint. (where powerpoint beeps after displaying each slide for n seconds, and the arduino bumps the z axis up a notch every time it hears the right kind of beep.

da3v

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #5 on: April 06, 2012, 04:05:05 PM »
I ordered a quart of this stuff. http://bucktownpolymers.com/zve500-uv.html

It is doubtful that we will have much luck w/ a standard dlp, but it will be fun to try.  It might also be interesting to see what we can do with one of those UV detector panels we have floating around.

He said to check back in a couple of weeks and they might start carrying small quantities of visible light curing resins.

f00bard

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #6 on: April 13, 2012, 09:29:26 AM »
It looked like they were just using a standard DLP projector but removing the UV shield on the bulb.  HID lamps like the one in our projector produce UV light, but it's filtered out by the outer shell of glass.

We'd have to get buyin from everyone else to basically destroy that projector, though.  It wouldn't be safe to use after we modify it.  All the more reason to hurry up and buy a projector =)

da3v

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #7 on: April 26, 2012, 05:57:47 AM »
Has anyone experimented with the resin that George dropped off at the lab a couple of weeks ago?

Chorca

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #8 on: April 26, 2012, 04:30:52 PM »
We  just found it, along with the spindle. Had no idea it was there haha

digitalman2112

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #9 on: May 10, 2012, 10:33:31 PM »

There is also a funded Kickstarter for a similar system (if I understand it right, haven't spent lots of time with it...)

http://www.kickstarter.com/projects/b9creations/b9creator-a-high-resolution-3d-printer?ref=thanks


The print time is slowwwwww...  .95" an hour...but I can't say I can do better with FDM...






da3v

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #10 on: June 18, 2012, 03:34:51 PM »
The visible light cure stuff from Bucktown arrived last week while I was out of town. It doesn't look like there was leakage during shipping, but man that box is really, really nasty smelling.  I don't have a well ventilated dark-room to do any tests in, so I might do a few experiments outside tonight, or I might just wait until the less nasty stuff from Spot-A Materials gets here.

 http://www.spotamaterials.com/Spot-GP.php

P47

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #11 on: June 18, 2012, 05:40:57 PM »
@da3v


My first post here.


I read that some of the goops were pretty smelly, guess you hit the jackpot.
I still would like to test the 500uv with a high power ir diode I have. Wish I brought it to the last open house.


Here's the link for the laser 3D printer.


http://www.instructables.com/id/Build-a-Laser-3D-Printer-Stereolithography-at-Ho/


P47

P47

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #12 on: June 18, 2012, 06:52:33 PM »
This seems to be an easy setup to test using the top down method and a dlp projector.
https://nano-cemms.illinois.edu/materials/3d_printing_full




I don't know if the lab has a uv meter of sort, but this might help to see if any uv is output using a ultra violet security marker.
http://www.youtube.com/watch?v=Yef3qkdF060

da3v

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #13 on: July 03, 2012, 11:46:58 AM »
The less stinky goop from Spain has arrived.  I'll try to determine how much less stinky it is later today, and might bring some to the open house tonight if it seems to be innocuous enough.  (http://www.spotamaterials.com/Spot-GP.php)


Simply7

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Re: DLP projector based 3D printer kit on indiegogo
« Reply #14 on: August 23, 2012, 10:22:30 PM »
So I happened to get my hands on a working DLP projector, an Epson Powerlite S1+.   It has a 800x600 resolution, but I'm not sure what type of bulb it has.  Any clues?

 Also, I saw on this guys website  http://code.google.com/p/lemoncurry/wiki/main  the following information

or example a DLP with a native resolution of SVGA 800 x 600 may be used to print and area of 80mm x 60mm at 0.1mm resolution with a Z resolution controlled by the slice thickness and stage at 0.01mm.

This is a very small print area, I imagine it could be increased but at the cost of resolution, maybe it's late but I don't see how he figured out the resolution.

I have yet to find someone that has released any software.  Anyone seen anything?