Turned down this zion aluminium backin plate to about 4mm. Turned the shank round to 24mm and threaded the outside to fit a m24 nut on it. Inside goes a threaded m14 shaft. Easy peasy:-) put on som billiard felt to make it soft.
https://m.aliexpress.com/item/328709467 ... 8360865163
https://m.aliexpress.com/item/329451968 ... 8361649301
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