Need Help! 1 of 2 axes pausing during execution

Results 1 to 4 of 4

Thread: 1 of 2 axes pausing during execution

  1. #1
    Member
    Join Date
    Mar 2006
    Location
    Canada
    Posts
    25
    Downloads
    2
    Uploads
    0

    Default 1 of 2 axes pausing during execution

    Z is spindle, 1 rev per mm
    X is normal logitudinal axis,
    G01 X-20 Z20
    Which gives 20mm of 1mm pitch thread.
    Under testing, with preset Y (cross slide) - for first run testing on my machine.
    After what may be a TIME interval, carriage motion pauses, then continues.
    At faster rates, it goes farther, but still interrupts. Any ideas? thanks.

    Similar Threads:


  2. #2
    Member
    Join Date
    Mar 2006
    Location
    Canada
    Posts
    25
    Downloads
    2
    Uploads
    0

    Default Re: 1 of 2 axes pausing during execution

    If "time" is really the variable causing the pause, it must be the thermal shutdown feature of the DRV8825s. I'll drop the current a bit and install a fan, and report back.



  3. #3
    Member
    Join Date
    Mar 2015
    Location
    Netherlands
    Posts
    409
    Downloads
    1
    Uploads
    0

    Default Re: 1 of 2 axes pausing during execution

    If it is the driver over heating (or powersupply) you are also losing steps!

    Has reducing the current solved your problem?



  4. #4
    Member
    Join Date
    Mar 2006
    Location
    Canada
    Posts
    25
    Downloads
    2
    Uploads
    0

    Default Re: 1 of 2 axes pausing during execution

    Decided to go back to single stepping on x and y, which will also reduce current duty cycle (some 1/32 microsteps draw 1.4* single step current). Also switched to UGS from GRBLGRU, to get more macro options, and I like it better, but have had some issues with calibration,
    an intermittent connection, some smoke escaping from my nano, and a persistent mystery. But yes, I feel certain that the current reduction will help. I also had a heatsink that was not making a good thermal bond on the axis in question.
    (Having to switch between command line and back with each parameter change in GRBLGRU was driving me crazy, and while I like many of its features, not quite ready for it. Thanks!)



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
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

1 of 2 axes pausing during execution

1 of 2 axes pausing during execution