Arduino Controlled Can Crusher With LCD Readout.

Step 2 Part 1: Making the puley and mounting it on the motor.

The first step is to remove the pulley from the plastic holder on the laundry line pulley; to do this you have to cut the pin holding the pulley. A hacksaw should work but I used a dremmel to cut off the head. Once the pulley is free, use a 1/2" drill bit to create a space for a washer to fit into the puley while leaving enough material to still have strength. Clip off the extra material and sand it down. Mount the pulley on the motor and place the fence pole mount on the base of the motor. 

The motor may have three wires, one is connected to the a switch that changes the direction once the motor rotates so far, you don't want to use that wire to power it. Use one wire from the motor and another connecting the lead to the base of the motor--it should spin continuously (use a bolt on the motor to attach the ground).    

Comments

[Andsetinn]

A windshield wiper motor is usually a single direction motor. It's the lever on the gearbox, that you replaced with a pulley, that makes the wipers go back and forth as it turns in a circle. (It is a DC motor and they usually turn in the opposite direction if you switch plus and minus but the gearbox is often designed for force in one direction only)
If it's a front windshield wiper motor, it usually has wire for high speed, low speed and power, the ground sometimes does not have a wire.
The gearbox has a built in switch that stops the motor in certain position (so the wipers don't stop in the middle of the windshield).
If you connect 12 V to the power wire and the motor to the ground it doesn't turn, or only turns part of a circle and then stops. If you then momentarily connect 12 V to high or low speed wires the motor will start turning, but not stop until the circle has been completed. If you disconnect the power wire then the motor will start and stop as soon as you connect and disconnect 12 V to high or low speed wires.

[MRHint]

Thanks for the comment.

But to clear things up, I should have included the wiring of the windshield wiper motor. I attached a wire from the frame of the motor and the wire that goes to direcly to the motor, bypassing the little switch that changes the direction.

I didn't like the results with the wind shield wiper motor, it isn't too fast (I know other motors could have much better results, but that's all I had to work with). The lever arm was taken off of the motor before I got it. I believe there is a picture of it in the Instuctable showing what the motor looked like.

It is an old model of a winshield wiper motor, I think from a GM based RV.