Evee's hamster wheel
Hamster wheel:
You only need two ball bearings 608Z (like skateboard), a washer and a 8 mm threaded rod.
Mount in the following order:
-M8 nut
-ball bearing
-m8 washer
-ball bearing
-M8 nut
Then I use the fixation system of https://www.thingiverse.com/thing:347703 it works perfect.
If you have any doubts, please contact me!