Build Your Own SLA/SLS

I've never done top down printing, but maybe allow more time for the resin to settle after you move the build plate down on each layer?

I've been tinkering with using that same LCD, and had some very good results. I should have some exciting things to show everyone in a month or so.

I'd be worried about the vat itself absorbing resin over time.

PLA holds up just fine when exposed to resin, the real issues would be the porosity of the printed parts, and if they could stand the tension without cracking.

Huh, that's weird. I pause and resume, doing exactly what you're describing, all the time. Post some of your gcode?

I've done this with transfer adhesive: http://www.amazon.com/TapeCase-F9460PC- ... hesive+vhb

Looks really nice! Link to the O-ring?

I haven't tried PFA, but I just ordered some from CS Hyde to test it out. Thanks for the heads up!

Oops, I should clarify: I'm rebuilding the walls/structural pieces of the vat out of 1/4 inch polycarbonate, the nonstick coating is still backed with just .005 inch PC. So the new all PC vat just finished drying after being solvent welded together, and it's actually very sturdy, and it really is po...

I bonded the FEP to a sheet of .005" polycarbonate using some transfer adhesive. The vat works, but unfortunately the acrylic started to crack under the stress, so I'm rebuilding the whole thing out of 1/4" polycarbonate which should be *much* sturdier. ^_^