Ready to learn how to make a cup turner? It is actually easier than you may think. Start by wiring the motor. MAKE SURE IT IS NOT PLUGGED IN! Use wire nuts to screw one wire from the plug to one wire for the motor. Cover with electrical tape. Repeat for the second wire. NOTE: It doesn't matter which wire goes with which as this just determines motor direction. You can test the motor after wiring to ensure it is working.
Find the center of your dowel rod and drill a hole slightly undersized for the rod coming out of your motor. In this case, the rod was 1/4 inch so I drilled a 1/4 hole. Then press the dowel rod onto the motor with your hand. This will ensure a tight fit. You can also use some adhesive to ensure this does not slip when in use. AGAIN THE MOTOR SHOULD NOT BE PLUGGED IN!
You will need two boards. One longer piece for the base and one shorter piece with a hole drilled in it for the motor. This hole needs to be larger than your dowel with plenty of clearance. Put the dowel through this hole and secure the motor with some screws in the mounting brackets.
Then use additional screws to put the two pieces together.
Now you need to add something to hold the cup on the end. A foam football or piece of a pool noodle are popular options. Just make sure it fits the cups you will be making snugly. Then cut a hole if needed.
Place on the dowel rod
Then remove, add a bunch of glue to the inside, and add back to the dowel. Allow to dry completely before using.