Larger (40mm Diameter) X/Y tension wheel - ender3v2 (Patreon)

Those stock tension wheels can be annoyingly small (approximately 18mm diameter), so here is a larger variant that will still fit under the moving bed on a ender3v2

You can either use a M4 6mmOD 10mm long heat inserts, or extract the one from the original tension wheel with a soldering iron which has those same dimensions. 

Easiest way I found to extract heat inserts if you don't have a tool dedicated for it, (basically a soldering iron with a screw tip) is to warm up the heat insert well enough at 200C until plastic around it is soft, and use a long M4 screw to pull it out (might need to do that twice)

Then insert it on the side that sticks out. and if there is any goop on the other side just slice it off with flush cutters.

Even though it's tested for an ender3v2, may work on other printer or for other usage.

PLA might be ok, but I would recommend PETG for the Y axis (or both in an enclosed printer)