Resin Exposure Calibrator for 10um/25um layers

This was inspired by https://www.thingiverse.com/thing:2674764 - but I wanted something to work for 0.01mm and 0.025mm layers on my Kudo 3D Bean.

The idea is that each of the 'cubicles' have a single 'film' that is 1 layer-height high, and at 1 layer-height offsets, so if you configure your exposures so that the top 20 layers are at different exposures, you can see how the resin behaves at each of those exposures - if the film comes out intact, than that exposure is long enough - if the fil