A shaft/roller for Polymaker's PolyDryer. When printing fast the PolyDryer introduces gaps/blobs into the print because the spool starts to hang/drag.

I designed and tested this new shaft/roller to be used instead of the non-rolling shaft and it improved my print quality significantly.

You will need to print two clips and one body. Use appropriate filament for the highest temperature you want to dry. 

BOM:

• 2x 699 ZZ ball bearing