Karambit Keychain with Print in Place Bearing

What It Is

A remix and kind of mix and match between print in place bearing and karambit keychain. The karambit itself is based on HorusTheForest's design with modification to accept print-in-place bearing by Jerryie. All model was remade to make sure it has proper tolerance and a good size to fit your finger.

How to Print This

• The bearing now has ~0.4mm tolerance which should be good for even a potato uncalibrated printer. If demand says so, I might add more bearing models with varying tolerance. For now, to change the tolerance you can use PrusaSlicer's “XY size compensation” or Cura's “horizontal expansion” setting.
• Print bearing with any setting you like, no support or infill needed.
• Print karambit with any setting you like, but make sure you have at least 20% infill enabled, no support is needed.
• 3 versions of the bearing are provided as of now: 18.5mm, 20mm inner diameter, and a bearing STEP file in case you want to modify the bearing yourself. (All have ~0.4mm tolerance)

How to Assemble

• Simply press-fit bearing into the karambit, you might need use some force.
• Add some drops of oil inside the bearing to ensure smooth bearing operation. Cooking oil or any oil will do.

Why I Make This

The idea stems from my difficulty finding the exact bearing used in most karambit keychains. Jerryie made a very simple yet smooth print-in-place bearing which I thought could be used to replace store-bought bearing. 

The reason I did not merge the bearing and karambit together is so you guys can experiment the bearing tolerance and hole size without printing the whole karambit.

Any recommendations and critics are very well welcomed