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IndustryArena Forum > WoodWorking Machines > Commercial CNC Wood Routers > Chinese Machines > Replacing lead screws with 8mm lead in 2418 machine.

Thread: Replacing lead screws with 8mm lead in 2418 machine.

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  1. 05-25-2019, 03:31 PM #1
    irvingma
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    Replacing lead screws with 8mm lead in 2418 machine.

    Hi. I have replaced all lead screws with new 8mm leads. Now the machine is producing distorted cuts, i think from the Y axis.
    As I am a complete novice at this, could you give me some idiot proof advice?
    I am using GRBL 0.9 controller.
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  2. 05-29-2019, 04:42 AM #2
    Sterob
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    Re: Replacing lead screws with 8mm lead in 2418 machine.

    It sounds like the pitch of the new lead screws is different to the originals.
    I assume you have seen this?
    https://github.com/grbl/grbl/wiki/Configuring-Grbl-v0.9
    I don't use GRBL so can't help much.

    Looks like you can list all your settings. Note them down before you change anything.

    I'd start by entering as command to move the Y axis a specific distance and then measure the actual distance moved with a steel rule.
    Use that info to change your stepper parameters so they match.
    Make one change at a time and see what happens.
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