Wiring for laser

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  • December 17, 2021 at 10:10 pm #12108
    contacttodd
    Member

    I am using the tinyg to power my xcarve CNC machine. I recently bought a laser and want to connect it. My input power to the tinyg is 21VDC and it’s working great, but the laser needs 12VDC.

    There is 3 wires for the laser, they are 12V, Common, and PWM. Is it possible to use a step-down transformer from 21VDC to 12VDC and connect the 12 V and common to it, then just use the PWM from the tinyg to control it?

    December 17, 2021 at 11:31 pm #12109
    Zootalaws
    Member

    You would be better off to use a 12V supply for the laser. It’s probably cheaper than a DC-DC transformer.

    The PWM output will be fine to use to control your laser, but you will need to have a different set of operating PWM parameters than you would for a spindle. Your LED laser (I presume) will be expecting a different range than your spindle.

    This may help: https://jtechphotonics.com/?page_id=6798

    • This reply was modified 3 years ago by Zootalaws.
    December 27, 2021 at 8:20 pm #12114
    cmcgrath5035
    Moderator

    Here is a forum where a lot of laser active folks hang out
    https://forum.makerforums.info/

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