Can you split an 8 wire stepper between two outputs?

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  • June 19, 2017 at 10:18 am #10416
    drunkbilly
    Member

    The setup I’m considering, and pls note I’m a new and have no real experience with cnc, I’m planning a 2 axis filament winding machine and the mandrel or rotating axis should be fairly strong and my concern is the tinyg might not drive a high torque servo but if I was to hook a 570oz in nema 23 or a 960 oz in nema 34 8 wire between say channel 3 and 4 can that happen? Thanks

    Also the reason I’m considering doing this is I’d like to be able to buy the cnc stepper kit for my g0704 mill so I can use it on that as well in the future. And if the tinyg is up to the task to run the mill then my investment imwould be future proof.

    June 19, 2017 at 1:33 pm #10417
    cmcgrath5035
    Moderator

    I believe what your want to do is use Motor drivers 3 and 4 to drive a single stepper motor.
    My best guess is not likely.
    The driver device handles all the gory dynamic details of turning a step pulse + the direction level into precision coordinated (and terminated) pulses on the two winding outputs.
    Even with both motors set to connect to the same axis and hence see input step pulses at nearly (or precisely) at the same instant, i see nothing in the device specs to guarantee high precision step pulse to output signal delay control control.
    It might work, but I’d suggest a long and detailed read of the 8825 driver spec before you try it.

    June 20, 2017 at 6:21 pm #10419
    drunkbilly
    Member

    Thanks very much

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