Pulley/gearing ratio

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  • October 9, 2021 at 10:35 am #892
    Mattyp
    Participant

    Hi guys, I’ve made a prototype arm using acrylic as I don’t have a 3d printer but I do have a CNC router. I’m just wondering what the teeth counts are on the 3d printed pulleys and I will be purchasing metal pulleys for mine.

    October 9, 2021 at 2:52 pm #896
    Matt G
    Keymaster

    So it looks like the bigger gears are 60 tooth, and the motor drive gears are 20 tooth, so you’re looking at a 1:3 ratio. I’m super interested to see how accurate your machine turns out to be with metal and acrylic.

    October 9, 2021 at 4:05 pm #898
    Mattyp
    Participant

    I Will keep you posted. The prototype looks cool but there’s to mutch flex in one of the axles. Building the arm shouldn’t be a problem but this will be my first time programming when I get around to that part. Happy to share any drawings and files for the arm once I have it working.

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