AM8 horizontal Y belt remix

I don't have any 625 bearings for the original file, but I had a few 605zz bearings left over from a B2D extruder kit I got a while back. So I remixed the file to fit the smaller bearing. Thanks to the creator for publishing the step files, as it was super easy to modify!

I also added a version of the tensioner with tighter tolerances on the holes, and added an M5 socket head cap screw in the middle to be pushed against rather than just plastic. This requires an M5x16mm socket head cap screw