Results 1 to 7 of 7

Thread: Rapid to 1st point problem

  1. #1
    Registered
    Join Date
    Dec 2005
    Location
    USA
    Posts
    402
    Downloads
    0
    Uploads
    0

    Rapid to 1st point problem

    Hey guys, I've been having this problem with Mach3, but I don't know if it's Mach's fault or if my post processor is creating code that Mach doesn't like.

    Ok what's happening is that Mach reads the line, rapids to the point, stops with out deceleration (loses steps), starts spindle, then continues to rapid to the point with no acceleration (losing more steps). I've been editing the code to put the M3 line before the first move, but its a pain when its a big program. Im using the MPFAN post in MasterCamX. Has anyone else had this problem? And do I have to edit the post processor to fix this?
    Attached Thumbnails Attached Thumbnails Rapid to 1st point problem-blah.jpg  
    Last edited by skmetal7; 05-22-2010 at 10:54 PM.
    Shaun
    my x2 conversion ------> http://www.cnczone.com/forums/showthread.php?t=36403


  2. #2
    Community Moderator ger21's Avatar
    Join Date
    Mar 2003
    Location
    Shelby Twp, MI....USA
    Posts
    22,286
    Downloads
    0
    Uploads
    0
    Do you have backlash comp enabled? That's the only thing I can thing of to cause what you're seeing.
    Gerry

    Mach3 2010 Screenset
    http://home.comcast.net/~cncwoodworker/2010.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  3. #3
    Registered
    Join Date
    Dec 2005
    Location
    USA
    Posts
    402
    Downloads
    0
    Uploads
    0
    nope :/ i have such little backlash that I don't bother.
    Shaun
    my x2 conversion ------> http://www.cnczone.com/forums/showthread.php?t=36403


  4. #4
    Registered M250cnc's Avatar
    Join Date
    Sep 2007
    Location
    England
    Posts
    359
    Downloads
    0
    Uploads
    0
    You may have the motor tuning wrong

    Press the tab key to bring out the MPG and make sure the SLOW JOG RATE is set 100%

    Then try jogging you will find out by jogging if the machine behave the same as in G Code

    Mach3 can only move at the speed you have set in tuning

    Re the PP you should have the Offset line before a move otherwise expect to crash i can't help on editing the PP

    Phil


  • #5
    Registered
    Join Date
    Dec 2005
    Location
    USA
    Posts
    402
    Downloads
    0
    Uploads
    0
    I can rapid around just fine, no missed steps. And this only happens in lines with an m3 command. I think ill have to edit the post file to fix this, but I've never heard of this happening to anyone else...

    oh yeah my computer is 933mHz, 512mb ram, 32mb vid card, win xp, and no other programs running.
    Shaun
    my x2 conversion ------> http://www.cnczone.com/forums/showthread.php?t=36403


  • #6
    Community Moderator ger21's Avatar
    Join Date
    Mar 2003
    Location
    Shelby Twp, MI....USA
    Posts
    22,286
    Downloads
    0
    Uploads
    0
    Open task manager while running the g code and see if your CPU usage goes to 100% when you see the problems.
    Gerry

    Mach3 2010 Screenset
    http://home.comcast.net/~cncwoodworker/2010.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  • #7
    Registered
    Join Date
    Dec 2005
    Location
    USA
    Posts
    402
    Downloads
    0
    Uploads
    0
    cpu usage goes to 70% when a program is running.
    Shaun
    my x2 conversion ------> http://www.cnczone.com/forums/showthread.php?t=36403


  • Similar Threads

    1. EnRoute Rapid Texture Problem
      By ClassicDoors in forum EnRoute
      Replies: 13
      Last Post: 02-26-2010, 02:18 AM
    2. Fagor 8025 Rapid problem
      By Todd H in forum Fagor Automation
      Replies: 0
      Last Post: 12-08-2009, 02:45 PM
    3. Need Help!- No rapid 'problem'
      By Tom Curran in forum CamSoft Products
      Replies: 2
      Last Post: 11-24-2009, 07:45 AM
    4. MDI rapid vs jog problem
      By Chris64 in forum Mach Software (ArtSoft software)
      Replies: 4
      Last Post: 03-08-2008, 10:34 AM
    5. 2.5D pocketing rapid problem
      By mayhugh1 in forum SprutCAM
      Replies: 3
      Last Post: 11-02-2006, 02:58 AM

    Visitors found this page by searching for:

    Nobody landed on this page from a search engine, yet!
    SEO Blog

    Posting Permissions


     


    About CNCzone.com

      We are the largest and most active discussion forum from DIY CNC Machines to the Cad/Cam software to run them. The site is 100% free to join and use, so join today!

    Follow us on

    Facebook Dribbble RSS Feed


    Search Engine Friendly URLs by vBSEO ©2011, Crawlability, Inc.