Evil Robotics

Drive Motors

2/20/03 Drive Motors

How to remove the motor from perfectly good Drill Master drill. Click on picture to enlarge image.

First charge the batteries. Leaving batteries in the discharged state is the fastest way to kill NiCd batteries.

The only tools needed for disassembly was a Phillips screwdriver and a wire cutter. Open the chuck all the way. Insert the screwdriver into the chuck opening. Unscrew the exposed screw by using the the power of the drill. The screw has left handed threads. Set the drill rotation direction to go the same way as if you are drilling a hole. Save this left handed screw. They are specialized and difficult to purchase.

Next remove the battery and the clutch attachment screws. When these are loose be prepared for all the ball bearings to fall out. You will not need these however don't suck them up with your vacuum cleaner.

Now remove all other screws holding the two main plastic housings together. Nearly all of these parts will not be used in your robot. Cut the red and black wires loose and you have your motor and gearbox as an assembly.

Tap some holes in the gearbox for mounting and I am ready for hubs and wheels. To see a more detailed instruction set go to robotdojo.com.

The included batteries are only a 1300 mAh battery pack. These will most likely not be an effective use of weight. Battlepacks sells some that are 3000 mAh for roughly the same weight.