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  1. 31-12-2017 #12
    Desertboy's Avatar
    Lives in Leicester, United Kingdom.
    Desertboy
    Last Activity: 26-02-2025 Has been a member for 7-8 years. Has a total post count of 1,005. Received thanks 85 times, giving thanks to others 756 times.
    Quote Originally Posted by reefy86 View Post
    can you mix steppers and servos? was thinking off having just servos on the long axis that moves the gantry
    In linuxcnc seems easy enough

    https://forum.linuxcnc.org/10-advanc...stepper-system

    Not sure about Mach 3 but if I'm going servo go all the way all 3 axis ;)

    If you're using standard ballscrew at the lengths you want you'll probably see screw whip with normal steppers never mind servos so you might need rotating ballnuts or R&P to see proper performance from servos.

    Google screw whip calculator to get a good idea of what a normal ballscrew can do but it's nowhere near 6k rpm Boyan quoted that servos will do.
    Last edited by Desertboy; 31-12-2017 at 06:45 PM.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)
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