Welcome to Our Community

Some features disabled for guests. Register Today.

Machine runs tool path but not to dimension.

Discussion in 'CNC Mills/Routers' started by KaosCNC, Nov 19, 2019.

  1. KaosCNC

    KaosCNC Well-Known
    Builder

    Joined:
    May 16, 2017
    Messages:
    94
    Likes Received:
    27
    I have moved onto my new CNC machine from using the MPCNC for learning.

    I am using the OB BlackBox and Control and also using the Vetric Vcarve software.

    I have my machine up and running and if I tell it to move 100mm it moves the correct length in the X and Y. I have not measured the Z yet... I think it may be off.

    I try to then run this 160mm x 160mm pen test and when the machine runs it's running way larger than 160mm.

    OB Control is set to MM - when I export the file I am using the GRBL mm post processor.

    I am totally lost and not sure where to start.

    the machine I has has 12mm lead screws in X and Y
     

    Attached Files:

  2. Giarc

    Giarc OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Jan 24, 2015
    Messages:
    3,017
    Likes Received:
    1,682
    How much larger is "way larger"? Twice as large? Four times as large, 25.4 times as large? Is this a file you came up with and designed yourself, or one in the Vectric software package?
     
  3. KaosCNC

    KaosCNC Well-Known
    Builder

    Joined:
    May 16, 2017
    Messages:
    94
    Likes Received:
    27
    I finally figured it out. I had the incorrect steps but now it is updated and I ran the file and the pen test came out just as expected.
     
    sharmstr likes this.
  4. Giarc

    Giarc OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Jan 24, 2015
    Messages:
    3,017
    Likes Received:
    1,682
    That is good. The first thing I would have suggested was the steps since you are using a different screw than most, but you said you sent it 100 mm and that is how far it went so I assumed you calibrated the X and Y.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice