Animal Runner

This socket allow you to make a runner plate for your animals. You can put an 8mm ball bearing inside, tighten it firm to the base (Add a small washer on both sides of the ball bearing. It may not touch the outer ring of the ball bearing of course!). Don't forget to put the bucket on top (this will prevent the ball bearing from moving up). Next screw the socket to the plate (diameter: 30 cm).
Video's:
https://youtu.be/wv3BuTq3S3U
https://youtu.be/AipFGm4bDTc
https://youtu.be/-bwR4-ZWoG8
(the wobble is because the wooden plate isn't flat, but that's not a problem...)