Re: [CAD_CAM_EDM_DRO] stepper driver help

These are not bipolar drivers, but my Hobby CNC unipolar driver will go up
to 3A/axis, which I find nearly essential for the Nema23's on my Taig CNC
mill. They are adjustable, and I have done some experiments to see what
happens at lower ratings. Around 2.25A or so, the motors start to lose
significant power, and around 1.75 A they simply stall in a cut. I would
try to find 3A or larger if possible.
Michael

On 9/26/07, stefan_sharpe <stefan_sharpe@...> wrote:
>
> My conversion project is going pretty slow right now- I am searching
> around on the net reading everything I can, to learn about what I am
> doing. Educated types might even call what I am doing reasearch...
> not sure if it is though as it is pretty fun so far :>
>
> Anyway, I had a lot of really good advice when I first posted- I
> hope I did not offend any of you with repeditive questions!
>
> I have also been hunting high and low for a bipolar stepper driver
> circuit that will go more than 2A, but they seem to be rare devils!
>
> I have found two 2A bipolar drivers and I keep wondering what the
> restrictions will be if i use them with Nema23 size motors. I know
> this is a difficult question to answer, but can anyone give me a bit
> of insight here?
>
> Thanks,
> Stefan
>
>
>


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