528,200 active members*
2,669 visitors online*
Register for free
Login
IndustryArena Forum > Mechanical Engineering > Linear and Rotary Motion > Strange surface pattern in x axis only?
Results 1 to 3 of 3
  1. #1

    Join Date
    Jul 2019
    Posts
    21

    Strange surface pattern in x axis only?

    Hi not sure where to post this,

    I am experiencing a strange pattern when cutting only in the x axis direction, up/down milling doesn't matter.(see attached photos)

    The strange marks happen to be ~5mm intervals which happens to be the same pitch as my ballscrew...?

    I am using Linuxcnc + dmm servos.

    I have tried leaving the end bearing loose and loosing the nut attachment so it can move in case of any alignment error but made no difference.

    Note the endmill im using is not in good shape and is chipped but is no different with a brand new. Despite the avg finish it is very smooth.

    Any help would be great

    Ritzy
    Attached Thumbnails Attached Thumbnails 20200905_103158.jpg   20200905_103408.jpg  

  2. #2
    Community Moderator Jim Dawson's Avatar
    Join Date
    Dec 2013
    Posts
    4440

    Re: Strange surface pattern in x axis only?

    Bent ball screw maybe?
    Jim Dawson
    Sandy, Oregon, USA

  3. #3

    Re: Strange surface pattern in x axis only?

    possibly a bent ballscrew as mentioned or the machined end for the bearing is off center

Similar Threads

  1. Strange issue, laser tube burn pattern on test piece is a concentric ring.
    By garagefela in forum General Laser Engraving / Cutting Machine Discussion
    Replies: 2
    Last Post: 04-16-2016, 03:44 PM
  2. STRANGE PATTERN
    By MrRogue in forum Milltronics
    Replies: 32
    Last Post: 12-11-2015, 06:00 PM
  3. Extrude Cut Pattern to a contoured surface
    By Forrest C in forum Solidworks
    Replies: 11
    Last Post: 02-11-2015, 05:09 PM
  4. Crosshatch/Mesh pattern on casting surface...Why?
    By Splint in forum Casting Metals
    Replies: 1
    Last Post: 02-27-2007, 02:58 AM
  5. Strange cutting pattern
    By owhite in forum General Laser Engraving / Cutting Machine Discussion
    Replies: 4
    Last Post: 03-13-2005, 05:48 PM

Tags for this Thread

Posting Permissions

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