I've got some styrene sheets in many thicknesses, from 0.010" to 0.080" Just about every hundredth. Very easy to cut, sand and shape, I may experiment with a damper made from it. Something else I've wanted to experiment with is the "Soundsmith EZ Mount Headshell Mounting Kit", https://www.musicdirect.com/analog-a...-headshell-kit
It's not too expensive, but allows you to experiment with different materials and weights at the headshell. Brass, steel and nylon, and aluminum I think? One could buy small screws from eBay made from different stuff, and conduct your own experiment, but the shipping would probably bring you near the cost of this kit anyway.

As far as replacing the main bearing, the worst case I can imagine is it would eat up the bearing. So no big deal, if that happens just put the steel bearing back in. I imagine the Delrin is pretty tough stuff. And ceramic is super hard, as long as you don't hit it with a hammer? Seems pretty safe to me.


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