It was entirely produced by Bambu Studio. Here are the steps for those who are interested:
Add a cylinder primitive with dimensions of 15x15x12.5mm.
Select the created cylinder and add a negative part - another cylinder primitive, with dimensions of 10x10x12.5mm.
Make sure they are aligned - both in terms of center and height.
Optionally, you can add another negative part - a cube and edit its dimensions to 1x10x12.5mm, aligning it in the same way - this way, you won't need to manually cut the printed rollers.
You can scale it as needed, which is perfect for my Cricut machine.
Explanation:
Using TPU material
Cut the printed roller with a cutting knife
Insert it into the base rod and make sure the notch is facing you.
Paste it on the rod and keep pressing it for 10 seconds