Roller

Update 2020-03-24: Supports no longer needed for the roller.

I designed this for rolling a silicone heater onto my print bed.

Roller dimensions: 30mm dia x 50mm width. Parametric f3d is included so you can adjust these somewhat.

You need the following non-printed parts:
* 2x 608 bearing
* 2x M5x25 or M5x30 button head cap screw
* 2x M5x16 button head cap screw
* 2x M5 hex nut
* 2x M5 washer

(The nuts and washers could be replaced with printed parts.)