Anycubic Photon Calibration Plate

thingiverse

One of the challenges once you are close to tuning your resin is making sure the outer edges are calibrated as well as the center of the build plate. The UV light can be as much as 30% lower at the edges of the Photon's build plate, so what exposure time works for a small print dead center, may not work for the edges of the build plate. This uses ~ 6.7 mL of resin for the print and will print 5 cubes of 4mm on a 1mm plate. All 5 should measure the same if you have the right exposure time.