Has anybody put keyways in the motor coupler's?

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thinking about puting a keyway in the motor coupler’s

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Be easier to grind flats on the leadscrew…

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I want to keep the even clamping of the existing coupler, I guess I could add a setscrew at 90 degrees to the slot and mill a flat on the motor/ leadscrew

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Isn’t the existing coupler a flex type? If not, you could replace it with one. The motor already has a flat. I thought my couplers had two set screws but I have so many CNC gadgets that I could be confusing it with another piece of equipment. In any case, my typical ‘solution’ is a flat on the leadscrew and the only time I ever had slippage is when I needed loctite in addition to the flat.

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Problem solved. No joke. Ruland CLX-4-4-F One-Piece… https://www.amazon.com/dp/B002SJSUGC?ref=ppx_pop_mob_ap_share

Made from steel with 4 machine screws. Locks down like a pair of vise grips

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