Rock tumbler end stop 80 degrees angle

thingiverse

This is designed to replace the standard plastic end stop piece that quickly wears out. The original Thing had a bit of an odd angle for my tumbler, so i adjusted it in Fusion360 by cutting a piece off, rotating it and filling the void. Drill the mounting hole with a 3mm or 3,2mm drill. I used a threading tap to tap an M4 thread to mount the bearing. Use an M4 bolt to mount the bearing and an M3 bolt to mount it to the tumbler. The ball bearing used is type 608 which has 8mm inner diameter, 22mm outer diameter and 7mm thickness. In case the mounting hole does not align well, scrape off a bit of the underside that comes into contact with the side of the tumbler to make the hole align to the hole in the tumbler. The small ring is used to mount the bearing with the M4 bolt. This fits Rock Tumblers like the ones made by Chicago Electric, Leegol Electric, Harbor Freight and HBM Machines. I also have a Lortone 3A which is built differently and this wheel won't fit on that.