Welcome to Our Community

Some features disabled for guests. Register Today.

OpenBuilds CAM traveling through material without going to safe z

Discussion in 'CAM' started by Ernesto P, Nov 27, 2021.

  1. Ernesto P

    Ernesto P New
    Builder

    Joined:
    Nov 27, 2021
    Messages:
    6
    Likes Received:
    1
    Hello, I need help with creating a path with OpenBuild CAM. I have an SVG file that I'm using and the software is moving through the material without going up on Z first. You can see how it creates new lines on the toolpath that were not there on the SVG file. I've tried with multiple types of cuts and I keep getting the same result. SVG file is attached. Appreciate any help with this issue.
     

    Attached Files:

  2. Peter Van Der Walt

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

    Joined:
    Mar 1, 2017
    Messages:
    14,251
    Likes Received:
    4,163
  3. Ernesto P

    Ernesto P New
    Builder

    Joined:
    Nov 27, 2021
    Messages:
    6
    Likes Received:
    1
    got it, will give it a try. I am using my plasma cutter as a big pen plotter but without the servo for lifting, I needed the Z-axis stepper to go up. Thanks for the quick response!!
     
  4. Peter Van Der Walt

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

    Joined:
    Mar 1, 2017
    Messages:
    14,251
    Likes Received:
    4,163
    Ok, you can plot that file, but you do need the Servo to lift to pen :)
     
  5. Ernesto P

    Ernesto P New
    Builder

    Joined:
    Nov 27, 2021
    Messages:
    6
    Likes Received:
    1
    yeah, I know it's the default option but seems redundant to me to add a servo if there is already a Z-axis. I'm trying these artsy vectors now but the idea is to draw the bending lines with a sharpie and then cut with the plasma cutter. I guess lines will be also open vectors and I will have the same issue.
     
  6. Peter Van Der Walt

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

    Joined:
    Mar 1, 2017
    Messages:
    14,251
    Likes Received:
    4,163
    Yiu can use the Cnc toolpaths that has Z. Play around... Bend lines are at least straight lines, not a grid pattern like your SVG
     
  7. Ernesto P

    Ernesto P New
    Builder

    Joined:
    Nov 27, 2021
    Messages:
    6
    Likes Received:
    1
    It will be great if you can modify the M command for the servo PWM to use another command like G0 and a Z pos instead. I will try doing it by hand on a text editor but looks like a simple change to implement and it might open the door to other CNC configurations.
     

    Attached Files:

  8. Ernesto P

    Ernesto P New
    Builder

    Joined:
    Nov 27, 2021
    Messages:
    6
    Likes Received:
    1
    nah, it wouldn't help in this case. Plotter mode with no-offset still doesn't like the open vector and does not lift the pen, traveling on top of the surface between areas.
     

    Attached Files:

  9. Peter Van Der Walt

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

    Joined:
    Mar 1, 2017
    Messages:
    14,251
    Likes Received:
    4,163
    Really not the intended use case for the software at the end of the day
     
  10. Ernesto P

    Ernesto P New
    Builder

    Joined:
    Nov 27, 2021
    Messages:
    6
    Likes Received:
    1
    yeah, I know, got it working with the Inkscape gcode generator. Thanks for the help and quick response, especially on a Saturday!
     

    Attached Files:

    Peter Van Der Walt likes 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