Made entirely in BambuStudio, here is the procedure for anyone who is interested:
add a cylinder primitive, 15x15x12.5mm
select the created cylinder and add negative part - another cylinder primitive, 10x10x12.5mm
make sure they are aligned - center and height
optionally you can add another negative part - cube and edit it's dimensions 1x10x12.5mm, align it aswell - this way you do not need to cut the printed roller manually.
You can scale it to your needs, this is what fitted my cricut machine.
Instructions:
use TPU (obviously)
cut printed rollers with a cutter knife
insert on base rod and move it so the cut is facing you
glue it to the rod and keep it pressed for 10 seconds
Video of installation (also where I got the ideea from):
