525,432 active members*
2,685 visitors online*
Register for free
Login

Thread: 96 Arrow 500

Results 1 to 2 of 2
  1. #1

    Join Date
    Jul 2020
    Posts
    1

    96 Arrow 500

    Hi
    I run a arrow 500 Acramatic 2100 control. Mainly produce mold parts
    Recently I did a job were a block was ground square I picked it up in center. Did some milling found out I was of center
    Did some tests.
    If I machine the complete block profile an say a bore the bore is perfectly in center
    If I take a ground block indicate it in center mill a bore it is off center in x by .002 and y .001
    Take the same block indicate it in center shift my x and y mill bore I is good
    What could be causing this

    Thanks Joe

  2. #2
    Junior Member
    Join Date
    Mar 2008
    Posts
    58

    Re: 96 Arrow 500

    Joe, I would either have someone run an X-Y, Z-Y, Z-X Renishaw QC20-W Ballbar ( example: https://www.youtube.com/watch?v=qKF99g_mG3M ), or make various mechanical checks.

    X-Z Tram; Y-Z Tram;
    Thrust Bearing Test using a .0001" test indicator and a 5/16" ball bearing on the end of the X and then the Y ball-screws.
    Looking and the Ballnut Pre-load or loss thereof of the X and then Y ball-screws.

    Your control also has bi-directional laser compensation and possibly backlash compensation active which was set up when new and in good mechanical condition.

    Greg W

Similar Threads

  1. ATC Arrow 750
    By larspeed in forum Cincinnati CNC
    Replies: 4
    Last Post: 09-26-2019, 11:40 PM
  2. Looking for a Arrow 500 or 750
    By coop31 in forum Cincinnati CNC
    Replies: 0
    Last Post: 11-13-2012, 08:36 PM
  3. arrow 750
    By canaco in forum Cincinnati CNC
    Replies: 4
    Last Post: 04-30-2012, 09:43 PM
  4. arrow 500
    By danq in forum Want To Buy...Need help!
    Replies: 0
    Last Post: 09-01-2011, 10:45 AM
  5. ARROW 500
    By larry180 in forum Cincinnati CNC
    Replies: 0
    Last Post: 11-12-2010, 01:40 AM

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
  •