Welcome to Our Community

Some features disabled for guests. Register Today.

My CNC Circles, are not round anymore...

Discussion in 'OpenBuilds Forum Help' started by canonman, Feb 29, 2020.

  1. canonman

    canonman New
    Builder

    Joined:
    Nov 16, 2019
    Messages:
    25
    Likes Received:
    7
    Hi, HOpe you guys can help
    My CNC circle cuts are no longer fully round can anymore ? both left and right sides, have a straight bit along the edge. !!
    Can anyone advice how to solve this
    Thanks
     
  2. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Dec 20, 2013
    Messages:
    2,855
    Likes Received:
    1,525
    Check for a loose pulley on a belted system or a loose flex coupling on a screw system.
     
  3. canonman

    canonman New
    Builder

    Joined:
    Nov 16, 2019
    Messages:
    25
    Likes Received:
    7
    thanks for your help
    will have a look
     
  4. canonman

    canonman New
    Builder

    Joined:
    Nov 16, 2019
    Messages:
    25
    Likes Received:
    7
    Rick...big thank you m8
    z pully was faulty, very loose, the grub screw heads are shot, will need to get fresh ones, but having trouble getting them out..
    Thanks for your time.
     
    Peter Van Der Walt likes this.
  5. Giarc

    Giarc OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Jan 24, 2015
    Messages:
    2,899
    Likes Received:
    1,613
    I would suggest not using grub screws but substitute longer screws of the right diameter (see picture). If you strip the socket then you can still grab and turn them with a pliers.
    upload_2020-3-18_18-53-13.png
     
  6. canonman

    canonman New
    Builder

    Joined:
    Nov 16, 2019
    Messages:
    25
    Likes Received:
    7
    Giarc Thank you.. its the old saying....great minds....
    I bought longer stanard phillips screws and cut them down just enough to ensure they dont foul anything, and they are much easier to adjust etc.
    As you said, I also have the advantage of being able to grip them if it happens again.
    Thank you. Keep on CNCing...
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice