Let Friction Ring.
Dear Lazyweb, I have this pulley wheel, 50mm inside diameter, 4mm groove. I need a rubber traction ring to go inside it. I cannot find anyone who will sell this to me. The ring must be flat or concave, not round like a typical...
https://jwz.org/b/yk33
@jwz Hoo boy. The phrase "Dear Lazyweb" is like seeing flashing lights and a lane closure up ahead on the highway. You know you're about to drive past a car crash.
Normally it's software, so it's amusing to watch people who know a bit of python try to explain software to jwz.
This one is mechanical hardware, so it's people suggesting to jwz that he use a rubber band. But, I hadn't anticipated "I'm a qualified pulley engineer, and you're holding it wrong."
jwz
Merc