It’s fairly simple if you own one of these feeler gauges that mechanics used to use for gapping spark plugs. Before removing the carrier plate:
A. Remove the resin tank.
B. Set the printer to open mode.
C. Start a print, the build plate will come all the way down.
D. Unplug the printer.
measure the gap between the build plate and the carrier.
After replacing the carrier plate, bring the build plate down again and adjust the gap so it is the same as before at all 4 corners.
