OneCNC XR8 Shifting datum to around outside of Cylinder on 4th Axis.
Close
Login to Your Account
Likes Likes:  0
Results 1 to 3 of 3
  1. #1
    Join Date
    Jul 2017
    Country
    AUSTRALIA
    Posts
    2
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default OneCNC XR8 Shifting datum to around outside of Cylinder on 4th Axis.

    Hello,
    Please can someone help me and point me in the right direction?
    I have managed to do a 4th axis wrap around a cylinder my problem is I am trying to shift the datum to around the top of the cylinder as currently it is off the centre line of the part.
    The part is going to be manufactured on the Haas VF5 and all of our datums are from the top of our round parts. So I would like the code to post correctly.
    How do I move this please? I have looked in the help file but cannot seem to find what I need.
    I haven't used this software for over twelve years now and cannot remember how to do this so I am learning my way again but this seems to have beaten me so far :-(
    Any help would be much appreciated :-)

    JonL

  2. #2
    Join Date
    Nov 2002
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    3,389
    Post Thanks / Like
    Likes (Given)
    2109
    Likes (Received)
    892

    Default

    If I understand you correctly, you want to shift the A 0° in the cam system.

    Once you unwrap a cylinder, the software will show you the geometry with a portion above and beneath X/Y zero.
    If you move the geometry in Y + or - it will change the location of the features relative to A axis rotational.

    Doug.

  3. #3
    Join Date
    Jan 2005
    Country
    CANADA
    State/Province
    Saskatchewan
    Posts
    10,403
    Post Thanks / Like
    Likes (Given)
    1421
    Likes (Received)
    3825

    Default

    For a wrap part, the datum is always Z0 at the centerline on the spindle axis. You should be able to redefine this quite simply at the control: hint, it is the radial distance in Z- from the top of the wrap circumference

    For other 4 axis modes, you can change the Z datum by moving the workplane up or down before you create the machining operation. Note that when you unwrapped the geometry, OneCNC placed it on the XY plane at Z0. Now if you want to move it up or down, you can, of course, but I think you might get mired down in complexity.


Tags for this Thread

Bookmarks

Posting Permissions

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