Spool Auto-Rewinder For PolyDryer

It needs to be printed on some material that can withstand up to 70 degrees Celsius without deforming (it will be in a dryer box that reaches that temperature). 
I have used PETG

I've added a new GIF showing the assembly process. I think that will help you in the process. I also recommend seeing the spring assembly process described by Oleksii in the original part on which this model is based.

Modified most of the models and added some to adapt it to the Polydryer box