Portable Fridge Wheels

One set of wheels on our portable fridge snapped off. I made these to avoid having to buy a new fridge. They connect to a common axle using threads to ensure they rotate together. They are pretty simple yet functional, so they might be useful for other stuff as well.

It took me a while to get the threading to work. On my printer - PrimaCreator P120 v3 (a.k.a. MonoPrice Select Mini) - the "magic" numbers turned out to be 1 millimeter less on the screw part than on the thread part and a thread scale of 75%.

You might have to play around with the tolerances on your printer.