by Davo » Wed Apr 05, 2017 1:24 pm
Sorry, I had a reply started but not finished.
I've printed porcelain on a dampened, non-glossy ceramic tile (for easy placement into the kiln). I usually print two skirts, and I edit the gcode so that the move from skirt to actual print is a printing move. Porcelain is sluggish with starts and stops, so the less starting and stopping, the better the print.
I've used 0.5mm with with 0.25mm layer thickness, and 1.6mm width with 0.5mm layer thickness.
I usually print porcelain very, very slowly - 5mm/sec or 30mm/min.
The ambient temperature and humidity will be very important, as you want the porcelain to set up and bear the weight of future layers, but not dry completely and potentially crack.
Overhangs are not pretty, since the porcelain does not fuse to anything before firing.
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