Zen Toolworks Cricut cutting blade mount
This is a simple remix of B-Cup's lovely design. I simply loped off his mounting hardware and super-glued it onto a plastic brick. This setup works quite well for me. If everything is working correctly this mount should not see very much force applied to it. I use it to cut kapton film for solder-masking circuit boards I mill on my ZenToolworks CNC.
See B-Cup's original file for the parts list. Pro tip: spend a bit of money on decent bearings, I bought the cheapest ones I could find on Amazon and they are only barely functional for this purpose.