On 1405, we had originally decided to use Fischer price motors to run
our winch. We started fabricating a mount, which consisted of 1/4"
aluminum plate with a big hole for the output of the gearbox.
After starting the mounts, and cutting out the holes (using a parent's
hole cutter attached to the drill press), the students saw 340's robot
which used a van door motor for their winch. They decided they'd
rather do that. The circles of aluminum that the hole cutter left were
lying beside the drill press when we realized they were the perfect
size to use at the end of the shaft.
You can see the circle just on the far side of the van door motor in the middle.