The Tiniest Knight

[Glacian22]

I've been making parts for a homebrew DLP resin printer using my Rostock, and I finally got it working really well. Here's my favorite print on the with it so far, the tiny knight! http://www.thingiverse.com/make:70593

[joecnc2006]

Details on what it looks like and how you built it?

[Glacian22]

I picked the Muve 3D (http://www.muve3d.net/press/product/muve-1-3d-printer/) as a basic starting point, since I liked the idea of a dual z axis. Then, because the Muve uses a laser and I was going the projector route, I gutted everything to do with the laser and put in a dlp projector. Things were a little too wobbly for me, so eventually I rebuilt it all out of Openbeam (the Muve uses 10mm microrax extrusion) and added some linear slides and heavier leadscrews for extra stability. And that seems to have done the trick!

[Eaglezsoar]

I picked the Muve 3D (http://www.muve3d.net/press/product/muve-1-3d-printer/) as a basic starting point, since I liked the idea of a dual z axis. Then, because the Muve uses a laser and I was going the projector route, I gutted everything to do with the laser and put in a dlp projector. Things were a little too wobbly for me, so eventually I rebuilt it all out of Openbeam (the Muve uses 10mm microrax extrusion) and added some linear slides and heavier leadscrews for extra stability. And that seems to have done the trick!

If you get a chance, I would love to see a picture of the setup although I wouldn't understand any of it.
Such detail on tiny parts is amazing!

[Glacian22]

[img]http://i61.tinypic.com/fci35s.jpg[/img]

The setup is actually pretty simple. The glass vat holds the liquid resin, and a projector is focused onto the bottom of the vat from below. The build plate, perforated steel in this case, starts out pressed down at the bottom of the vat as well. For each layer, .05mm height in the case of the tiny knight, the appropriate slice is displayed with the projector for 2 seconds, solidifying the resin. Then, to help the newly cured layer separate from the nonstick coating on the vat floor, the right motor raises up a few mm, then the left, to gently peel the model off the vat. Then both sides lower such that there's a .05mm gap between the model and the vat floor. Repeat as needed.

[Print_This]

ok, that is cool.