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Discussion in 'Other Builds' started by Mark Carew, Feb 22, 2019.

  1. JacobE1988

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    So I posted the below question to facebook and got a response saying that arduino based controllers are not powerful enough to process G2/G3 codes. Do you guys feel the BB is powerful enough? I'm working with SolidCAM to get a Post Processor created and they want to know if my machine can use G2/G3.

    "Aspire Gcode question - Why doesn't the post processor for Grbl use G2 and G3 codes for arcs? It would create fewer lines of code, smaller files, and easier processing. Just curious if anyone knows."
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Grbl fully supports G2/3. It prefer IJ format over R format
     
    #512 Peter Van Der Walt, Oct 9, 2019 at 1:18 PM
    Last edited: Oct 9, 2019 at 1:30 PM
  3. JacobE1988

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    Yeah the Grbl wiki says it supports it. But based on the comment that the controllers aren't physically powerful I was just curious what you guys had to say on the subject.
     
  4. JacobE1988

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    Also, does the BB and Openbuilds Control software support an M0 code that could possibly be used for tool changes?
     
  5. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    For the stuff we do you'll never notice the difference (;
     
    JacobE1988 likes this.
  6. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Not yet: Complicated in-progress work here (read the whole thread attentively) Toolchanges · Issue #26 · OpenBuilds/OpenBuilds-CONTROL
    So for now have your post split each tool off into its own file
     
  7. JacobE1988

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    Peter Van Der Walt likes this.
  8. David the swarfer

    David the swarfer OpenBuilds Team
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    GRBL handles G2/3 just fine, even spirals where Z changes during the arc.
    as Peter said, IJ format preferred, and arcs smaller than 180 degrees.
     
    JacobE1988 likes this.

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