Welcome to Our Community

Some features disabled for guests. Register Today.

cnc plasma build

Discussion in 'General Talk' started by hayden burnside, Mar 31, 2021.

  1. hayden burnside

    Builder

    Joined:
    Feb 19, 2021
    Messages:
    7
    Likes Received:
    3
    just finished my first cnc plasma using a black box for motion control and Dr. Dflo's fusion 360 processor the problem is that after the first cut of a program on all subsequent cuts the torch fires about 1-2 seconds late after the machine has already started moving leaving about 3/4'' of material behind anybody had this problem help please
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,040
    Likes Received:
    4,123
    If the inverter has post-flow or some similar setting it will probably prevent the re-light. Add a couple G4 P2 (2 second delay) commands between sections, you can modify the Post to make it add it for you.

    Make the delay more than 2 seconds, to give the Inverter time to stop post flow and allow it to be ready to ignite

    And make sure you don't accidentally have Laser Mode enabled in Grbl Settings. It prevents M3 commands before machine moves. Its a Plasma, not a laser
     
  3. hayden burnside

    Builder

    Joined:
    Feb 19, 2021
    Messages:
    7
    Likes Received:
    3
    here is the file i was running i added delays all over the place and it still does not fire until after it starts moving on the second cut
     

    Attached Files:

  4. hayden burnside

    Builder

    Joined:
    Feb 19, 2021
    Messages:
    7
    Likes Received:
    3
    no matter if it dwells for 15 sec before 2nd cut it still doesnt ignitiate the arc until the machine is moving
     
  5. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,040
    Likes Received:
    4,123
    It shouldn't do that, so:

    Check that ^
     
  6. hayden burnside

    Builder

    Joined:
    Feb 19, 2021
    Messages:
    7
    Likes Received:
    3
    so yes i did have the laser mode enabled hopefully this fixes it gonna try again
     
    Peter Van Der Walt likes this.
  7. hayden burnside

    Builder

    Joined:
    Feb 19, 2021
    Messages:
    7
    Likes Received:
    3
    that fixed it thanks for the help
     
    Giarc and Peter Van Der Walt like this.

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