Wood Screw Pulley

This is a simple pulley to screw in basement rafters (or other) where you'd want to suspend something that is easily pulled up and down.

It is made to be threaded on a standard woodscrew up to the smooth part. Screws 2.5 in. and shorter I think, as the diameter gets bigger past that(?). Then screw the assembly in a rafter (or other vertical surfaces). I use jig-a-loo in the bore just to maximise the smoothness of rolling.

The inside of the pulley is threaded to make the fit as precise as possible with the shaft of the screw. This threading as more advantages: lowers the surface area in contact with the shaft of the screw and more surface area to "store" lubricant such as jig-a-loo.

I propose to print with support, but "block" support generation in some places, as per image above, to ease the removal; allowing a flat screwdriver to be wedged in there for example.

Print Settings

Printer Brand:

Anet

Printer:

A8

Rafts:

No

Supports:

Yes

Resolution:

0.2

Infill:

38

Filament: Overture PLA Grey