. .
  1. #1
    So after spending 2 years with a non ballnut (entry level) CNC machine , I've just ponied up for a proper used CNC machine with ballscrews & decent drivers (btw - woaah ...what a difference!)

    Now I can't immediately lay my hands on my dial indicator, so just wondered...is there normally much in the way of measure-able backlash when ballscrews & ballnuts are deployed? (bear in mind this is a used machine ...albeit the machine doesn't look heavily used).

    For those of you that have CNC machines with ballnuts ....is your backlash compensation setting in your CNC app set to zero?!
    Last edited by HankMcSpank; 13-09-2013 at 10:16 PM.

  2. #2
    Quote Originally Posted by HankMcSpank View Post
    So after spending 2 years with a non ballnut (entry level) CNC machine , I've just ponied up for a proper used CNC machine with ballscrews & decent drivers (btw - woaah ...what a difference!)
    How many times over the years have said do your self favor and buy some proper drives. . .Lol

    Quote Originally Posted by HankMcSpank View Post
    Now I can't immediately lay my hands on my dial indicator, so just wondered...is there normally much in the way of measure-able backlash when ballscrews & ballnuts are deployed? (bear in mind this is a used machine ...albeit the machine doesn't look heavily used).
    If you can see it without dial indicator then they are knackerd.!! . . . If you have backlash then it can often be seen on cut edges, esp with circles has a step where the cut starts & finishes.

    Quote Originally Posted by HankMcSpank View Post
    For those of you that have CNC machines with ballnuts ....is your backlash compensation setting in your CNC app set to zero?!
    Yep set it to Zero and don't bother with it.!!. . Using Backlash comp pretty much defeats the point of having ballscrews and really it's very poor substitute for good screws often used by the acme screws mill users start with. . . . Personally Wouldn't even bother with it and just put real screws on.!

  3. The Following User Says Thank You to JAZZCNC For This Useful Post:


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. RFQ: Ballnut Mounts needed.
    By dudz in forum Projects, Jobs & Requests
    Replies: 1
    Last Post: 05-03-2014, 09:01 AM
  2. WANTED: Ballnut Bracket needed please
    By EddyCurrent in forum Items Wanted
    Replies: 3
    Last Post: 24-02-2014, 11:15 AM
  3. RFQ: help needed to make cnc machine maybe 2-3 and will pay
    By scnc in forum Projects, Jobs & Requests
    Replies: 10
    Last Post: 22-11-2012, 12:31 AM
  4. Need help setting up a CNC router machine please
    By 1albobs in forum Gantry/Router Machines & Building
    Replies: 4
    Last Post: 27-02-2012, 06:16 PM
  5. Help with setting up my cnc and engraving machine's
    By soyeb in forum General Discussion
    Replies: 2
    Last Post: 30-05-2011, 11:51 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •