The main parts are FDM printed, while i used SLA to print the dies and the backstop, mainly to get the surface finished i wanted. I printed most parts on a Markforged printer with CFF Kevlar reinforcement, but they would probably work just fine with regular PLA. We use this at 3DVerkstan (www.3dverkstan.se) to press watermarks with our logo into our training diplomas. When making your die, you will need to add a embossed part to the upper platen, and a debossed part to your lower platen. These will have to have offset applied so there are space in between them.