Resin (smoking)
Posted: Mon Jun 29, 2015 5:13 pm
Hi Team,
First time poster here. I just built a top down system and was printing with a 3000 lumen un modified BenQ projector at a distance of about 18".
Strange part is that if I expose for 12 seconds+ Using only maybe 1/10 of the projectors full image (small part on large projector screen) I can get the resin to almost crystallize/smoke/steam? When the layer is exposed it looks to almost heat up and microscopically sizzle then steam comes out of it were its brightest white. I tried shorter times but it seems the resin wont cure.
Has anyone ever seen this? Its MarkerJuice G+ Black at 0.1MM layer thickness. My "best" guess is that the projector is pushing out a lot of radiant heat and not enough UV light? I tried to modify it but the projector UV Glass plate on the bulb protects the light tube from overheating and without the glass there it will overheat and shut down on its own.
Thanks,
-Steve S.
First time poster here. I just built a top down system and was printing with a 3000 lumen un modified BenQ projector at a distance of about 18".
Strange part is that if I expose for 12 seconds+ Using only maybe 1/10 of the projectors full image (small part on large projector screen) I can get the resin to almost crystallize/smoke/steam? When the layer is exposed it looks to almost heat up and microscopically sizzle then steam comes out of it were its brightest white. I tried shorter times but it seems the resin wont cure.
Has anyone ever seen this? Its MarkerJuice G+ Black at 0.1MM layer thickness. My "best" guess is that the projector is pushing out a lot of radiant heat and not enough UV light? I tried to modify it but the projector UV Glass plate on the bulb protects the light tube from overheating and without the glass there it will overheat and shut down on its own.
Thanks,
-Steve S.