Anet E16 Z-Axis bearing mount

The Anet E16's factory z-axis top mount has way too much play in it, which causes noise and vibration. I designed this top mount to reduce play as much as possible. It uses a regular 608 skateboard bearing and the screws that came with the original mount. It's made to fit the Anet E16, but it probably fits the E12 as well (have not tried it) and maybe other CR-10 style printers.
If you want to try different settings to get the fitment of the bearing right, you can use the bearing_test file (I u