I've got access to a lot of different electric motors. My friends dad used to be an appliance repairman
.
Once I find out how many rpm's I need to be at, I will decide which motor to use.
For the tumbler itself, I got ahold of a 3 gallon bucket.
The next step will vary by motor. If the motor I want to use will spin at the right speed it will be as simple as screwing a piece of 1x4 on the bottom of the bucket with a 1"x1" square cutout of the wood and centered on the bottom of the bucket. The motor is an old garage door motor with a 1" square shaft poking out.
If I use one of the other motors, I'll have to fab up a different style bracket with a tensioner on it to keep the belt tight. Find a pulley for the motor shaft that will accept a V-belt and find a belt large enough to fit around the pulley and the bucket. Then use some flex tube to build my groove with the tube to fit around the bucket. The bucket will be drilled on the bottom with a 1" circular hole and a piece of 3/4" all thread inserted and washers with nuts to hold the all thread in the bottom of the bucket.
With the bucket now mounted on the all thread you have a shaft about 8 inches poking out. Find a piece of pipe that will fit snug over the all thread and weld or solder it into place so you now have a smooth shaft that will be roughly 7/8-1" in diameter. Find another pipe that this shaft will fit into.
For the base, I'm going to use 2 1' pieces of C channel with the frame built up and the pipe mounted at such an angle so the front of the bucket will rest on 2 casters to help support it.
Once I get it built, I can describe it a lot better and what it's going to cost. I can try to explain it over and over again and still wouldn't get across what I'm trying to say.
-John