[chbot] Question regarding stepper motors

[Mark Atherton]

Hi Michael,

Welcome aboard.

A few parameters which may be useful:

- How many wires, what colours

- Overall dimensions

- Weight

Regards, Mark



On 24/02/2020 12:25 PM, Michael Dawson wrote:
> I am trying to calibrate the A4988 drivers for the stepper motors for 
> my laser engraver/cutter, using Arduino Uno and the CNC shield, 
> (because the one that came with the cutter was pirated software and 
> didn't work how it was supposed to and I want to run laserGRBL anyway).
>
> The issue I am having is, I have not got the specs for the stepper 
> motors and aliexpress did not provide the specs.
>
> I think they are nema17, but the only hint I have to that is that when 
> I search on the number etched into the motors D42HSC141B-24 I find an 
> old banggood ad saying they are nema17 but if you click on the link 
> the original ad is long gone.
>
> I currently have them set to 0.952v when measured connected to the 
> arduino and cnc shield which is what was suggested, if they were rated 
> to 1.7A. I'm hoping that is correct for these steppers, so I guess my 
> question is does anybody have these same steppers and know the specs, 
> or do they know it they are indeed rated to 1.7A
>
> Or is there a way to find the Amp rating other than the etching on the 
> side of the stepper?
>
> Any help would be much appreciated.
>
> Oh hi BTW, my name is Michael, one or two of you may know me, I ran 
> Red Dwarf BBS back in the day, (I just remembered, I had the Red Dwarf 
> logo display in RIP script when you logged in, pity that never really 
> took off.)
>
> Michael
>
>
>
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