I made some replacement cups out of some pvc drainage pipe years ago. It was a case of simply cutting to approximately the right size, heating until soft then forming the cup by forcing the softened plastic into the socket using a spare suspension ball and the appropriately sized hammer. Then it was just a case of trimming to the right size and forming the slot. They seem to work alright and have been in place for 25 years. Haven't pulled the suspension unit apart to see how well they've worn though. I don't think the cups need to be particularly strong though... and I like the idea of using graphite.
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05-09-17, 02:50
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