Moves between cuts are incredibly slow. G-code Attached.

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This topic contains 6 replies, has 2 voices, and was last updated by  Benjamin Shaw 1 year ago.

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  • #17703

    Benjamin Shaw
    Participant

    I’ve attached a simple G-code program that cuts a 14″ square 1″ deep in two passes with some tabs.

    Every movement that is not a cut goes very slow. I’ve tried every setting I can think of to speed it up.

    I’m using Fusion 360. Cutting Foam. Any thoughts would be greatly appreciated.

    Here are my settings in Fusion:

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    Attachments:
    1. Square.zip
    #17706

    Jason
    Participant

    Your surface speed maybe? It is set to 23mm/s. (654 feet per min)

    I am not familiar at all with 360 but that one stuck out to me.

    #17707

    Benjamin Shaw
    Participant

    Unfortunately, I think the surface speed is referring to the speed of the tool rotating. It’s directly tied to the spindle speed, both of which are irrelevant since I have no speed controls other than manual. :/

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    #17710

    Benjamin Shaw
    Participant

    I should also add that if I simulate the cuts in Fusion 360, the cutter moves quickly in between cuts. Does this indicate an issue with Repetier settings?

    #17717

    Jason
    Participant

    If you look in your gcode for the feedrate change that should show whats wrong.

    #17718

    Benjamin Shaw
    Participant

    Digging into that now. I’m seeing that it is set to F2000.

    Also, I’m guessing this value is coming from the custom post processor I am using to get the code out of Fusion. Looking at the code, it has the following section in it that I think sets the feed rate:

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    Also, Here is a screenshot of the resulting G-code:

    2

    #17814

    Benjamin Shaw
    Participant

    Wondering if the command that sets “Use G0” moves to false could be causing my issues with slow movements. I have zero G0 rapid commands in my post processed code.

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