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  1. 11-06-2015 #10
    JAZZCNC's Avatar
    Lives in wakefield, United Kingdom.
    JAZZCNC
    Last Activity: 19-01-2024 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 8,446. Received thanks 1,445 times, giving thanks to others 109 times.
    Quote Originally Posted by toomast View Post
    What would be the maximum length of 20mm ballscrew in this application? What would be critical length that needs rotating ballnuts?
    Im thinking of getting more distance from gantry travel...
    Oh very hard to answer because depends on the end fixing etc but I wouldn't go above 2000mm and at that I would have Both ends with Fixed bearings and slight preload on them. When I build 4x4 size machine I always use Fixed/Fixed end bearings as the slight cost difference is worth the extra support it gives.
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