Drill gearbox mount

thingiverse

This part serves as a compact and convenient mount option for drill gearboxes in DIY projects. It is designed around the generic 1:36 gearbox found in many low-cost drills of various brands, such as Bosch PSR 960. I highly recommend using the drill pattern as a template for making aluminum mounts for motors due to the heat generated by motors and shock loads in some applications. Assembly: You may need to grind off a small portion of the output shaft to fit the bearings onto it. It is essential that the ring gear interlocks with the holes in the 3D-printed housing, pressing further into those holes as you tighten the screws. The assembled gearbox should run smoothly. If it does not, check for misalignment, debris, or other issues. Additional parts required: - Donor drill - 12x19x5 ball bearing (2) - Countersunk screw M5x50 and nuts (4) The shim pictured above is taken from the donor drill. The wheel shown above is a standard foam wheel for 1/8th scale RC race cars and can be easily mounted on the 12mm part of the shaft. So far, I have conducted approximately five minutes of test driving with these gearboxes on my half of a combat robot (FW clusterbot). Instead of using the original brushed 540 motors, I am experimenting with brushless setup using 2212 outrunners. A test drive can be seen here: https://www.youtube.com/watch?v=h0skL8iD67g