Sunday, October 19, 2025
PrusaSlicer Working, Notes On UV Resin
The dipify_gcode.py script seems to be functional again. Needs a couple of tweaks, but I printed this using it with 8μm pixel spacing and Probe One:
The slicer is adding a few clever bits for extrusion that I don't know how to turn off, but it plots one layer on top of another now. Just need to add something to flash the UV LED to cure the resin.
About that resin... Funny thing about 3D printer resin is that it doesn't cure well in the presence of oxygen. Not a problem in a standard DLP printer, but obviously μRepRap has issues there.
Now you can cook the sample at 90C to encourage it after printing, or use a shielding gas - CO2 is fine.
But I wondered if we can use this to our advantage. If we deliberately cure resin in air it goes semi-solid and washes off with IPA. Thought: Cure support material in air, and what we want to be solid resin under CO2...
