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  1. #1
    Join Date
    Feb 2018
    Posts
    15

    Speeds and feeds in GCode?

    So when I set up my RPM and IPM in vcarve is that whats actually being used when cutting?

    Were using a shop bot, and the guy who primarily will be operating it was telling me it was running 2k RPM faster than what I had programmed it to in Vcarve.

    So is it in the GCode? or is it on the machine side with shopbots software or something?

  2. #2
    Join Date
    Nov 2012
    Posts
    1267

    Re: Speeds and feeds in GCode?

    G-code tells the machine how fast it should go:

    M3 S5000 (Turn the spindle on at 5000RPM)
    G1 F100 X22 Y33 (Go to X=22 Y=33 at 100IPM or 100mm/min)

    The machine will generally obey the G-code unless:
    - It is not capable of going that fast or that slow.
    - The spindle controller is not accurate enough.
    - The user has changed the speed with "override" controls.

  3. #3
    Join Date
    Mar 2003
    Posts
    35538

    Re: Speeds and feeds in GCode?

    Shopbot code will look a bit different, but should still have the rpm in it.
    If the shopbot code has the right speed, then the issue is somewhere else.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

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