Results 1 to 5 of 5

Thread: circular interpolation point of view?

  1. #1
    Registered
    Join Date
    Aug 2007
    Location
    Canada
    Posts
    55
    Downloads
    0
    Uploads
    0

    circular interpolation point of view?

    Hi there,
    I am trying to do circular interpolation between the vertical and one of the horizontal axis. My question is, which way are you looking from when you do clockwise and counter-clockwise? Are you looking towards the negative or positive axis? For example, if I want to traverse a semi-circle "smile-oriented" shape between Z and X with radius 1, if I'm looking at it from the positive X axis it would be:

    G01 X1 Z0
    G02 X-1 Z0 R1

    If I'm looking at it from the negative X axis, it would be:

    G01 X1 Z0
    G03 X-1 Z0 R1

    It's pretty intuitive when you're interpolating between X and Y to look downwards, is it the same for X and Y? Thanks


  2. #2
    Community Moderator ger21's Avatar
    Join Date
    Mar 2003
    Location
    Shelby Twp, MI....USA
    Posts
    22,286
    Downloads
    0
    Uploads
    0
    Are you looking towards the negative or positive axis?
    Looking in the negative direction.
    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
    Oct 2010
    Location
    US
    Posts
    98
    Downloads
    0
    Uploads
    0
    Quote Originally Posted by lagfish View Post

    It's pretty intuitive when you're interpolating between X and Y to look downwards, is it the same for X and Y? Thanks
    Yes, looking from positive, as ger21 put, looking to the negative..

    BUT, do not forget to change the working plane. G17 for X-Y, G18 for X-Z, and G19 for Y-Z

    AND, working in X-Z, you mean looking at it toward negative Y


  4. #4
    Registered
    Join Date
    Aug 2007
    Location
    Canada
    Posts
    55
    Downloads
    0
    Uploads
    0
    Got it.
    Thanks for the reminder about working plane - I was wondering about that.


  • #5
    Registered
    Join Date
    Feb 2006
    Location
    india
    Posts
    1,273
    Downloads
    0
    Uploads
    0
    And the coordinate system follows right-hand rule.


  • Similar Threads

    1. Problem- Circular interpolation problem with UGS NX 7.5
      By wlamers in forum UG NX
      Replies: 5
      Last Post: 02-04-2011, 09:56 AM
    2. circular interpolation
      By pmesilver in forum Mach Mill
      Replies: 1
      Last Post: 04-10-2010, 08:20 AM
    3. Newbie- Circular Interpolation
      By Deadwood in forum Mach Software (ArtSoft software)
      Replies: 3
      Last Post: 01-11-2009, 03:35 PM
    4. circular interpolation
      By sqatch in forum Dolphin CADCAM
      Replies: 9
      Last Post: 02-11-2008, 01:02 AM
    5. No circular interpolation in G-Code?
      By M30 in forum Mastercam
      Replies: 2
      Last Post: 07-24-2007, 10:55 PM

    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.