Changing to Hiwin design from round supported parts advice grateful.

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Hi
I would not use direct coupling Motor/Ballscrew use belt and pully, Dean always recommends this setup to reduce resonance.
Regards
Mike

I have no idea who Dean is, but if you mean rigid coupling then I agree, that should not be used, but the lovejoy couplers are not rigid.



They offer some flexibility, but not as much as the crappy Chinese sold as flexible couplers. These are the ones I mean should be avoided because they generate vibrations and can snap off any time.



On the other hand, these require less installation accuracy, so if you are sloppy, or not good at adjusting and aligning then the lovejoy type isn't the one for you.