Bearing Tensioner Remixed!
The tensioner is a new idea to reach higher speeds by making sure the belts can never skip off the pulleys. It uses a rollerskate bearing – you’ve seen them in fidget spinners – and is 3D printed. Jason Garber remixed and improved the design, which delights me to no end.
He said the middle pieces (2mm bend) is the his favorite. Here it is in action on Jason’s machine: