Re: USB cable starts overheating when Power Supply is turned on

Just by hand-tuning them I managed to get them all working on their lowest possible energy level. The only thing I find weird about the machine is that my extruder stepper makes a pretty annoying high sound, while all the others are all perfectly silent.

Also another weird thing is that the stepper motors seem to move the wrong way from what is shown in the pronterface menu and when my motors hit the endstop, they just try to go through it.




redreprap Wrote:
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> i guess 0.7v will work too (1.7A drive, about 2/3
> the torque i think). but it is always good to find
> out what the Rsense are.
>
> if you have a chance to spot a certain digital
> multimeter Uni-T UT61E, it measures down to
> 0.01ohm, and you need to have 1, go grab that. it
> should not be more than US$80 in stores.
>
> Ohmarinus Wrote:
> --------------------------------------------------
> -----
> > Hey, thanks for your reply, I still haven't
> gotten
> > things running.
> >
> > I also asked the seller of the equipment, he
> says
> > that just turning up the meter slowly until the
> > motors work as intended...
> > Not sure if this is such a good idea, I have
> asked
> > a friend who has put Vref at 0,7 and he says it
> > works well.
> >