How to Modify a Polaroid Land Camera to Take 35mm film

Step 6 Making The Left Side Crank

This is probably one of the most important parts we are going to add to the camera, the crank. Start off with the 3/8" dowel and cut it to 1 3/4". In order to turn the film, the dowel needs to be able to fit inside the cartridge. With a hand saw cut about 1/4" down the middle of the dowel to get a slot. Clean the cut up with sand paper and then you are good. 
Get the knob of your choice and with the 3/8" bit drill a hole in the center of the knob so the dowel can fit right in. Do not glue it yet.