Roller with removable pin. Easy to print.

thingiverse

I had significant issues printing the roll due to its minimal contact area on the printing bed. To resolve this problem, I removed the pen attached at the bottom and replaced it with a detachable pen that can be inserted into the printer. This modification significantly increased the roll's contact area on the print bed. All you need to do is insert the pen, as the tolerances are designed to hold securely without any adhesive. Unfortunately, the 490 variant was too narrow for my needs, so I added another 485 variant to accommodate this issue. I have attached the FreeCAD file for your reference.