That cutter is impressive--I wish I had your mechanical skills.
This is off your topic, but I am impressed with the fact that you make your own transfer sheets. I bought the plastic sheets intended for this purpose and made some (what I thought were) impressive designs, but the cocoa butter cracked off in pieces once it was in place (either on top of a slab or in a magnetic mold). I assumed the cocoa butter was too thick, but when you do things like splatter it across the plastic or paint it n various colors, they are bound to get thick. What are you secrets? If you have some ideas you are willing to share, it might be better to direct this discussion to an existing thread on making transfer sheets.