Re: [CAD_CAM_EDM_DRO] Re: loosing steps

>
> Gene wrote:
>
> > Here's what I found out.
> > The Oriental Motor specifications are:
> >
> > Holding Torque: 305 oz-in(for Unipolar), 430 oz-in(for Bipolar) at full
> > step
> > mode.
> > Voltage: 2 Volt (Unipolar), 1.4Volt (Bipolar)
> > Amperes: 4.5A/phase (Unipolar), 6.3A/phase (Bipolar)
> > It is a 8 wire motor hooked up in parallel. it is hooked to gecko 201. I
> > don't know if its unipolar or bipolar.
>
> The Gecko is a bipolar driver.
>
> > I guess if its bipolar I need
> > more amps.
>
> This should help the mid speed problem, if the motor skips steps at a speed
> where the current limit is still in play.
>
> > I think I need a 390k resistor? can I put a smaller Resistor
> > and raise the amps a smaller amount ? I sdont think my power supply will
> > handle a full 6.3 amps, its a 10 amp supply.
>
> Ah, but it doesn't need to supply 6.3 Amps, except during rapid accelerations
> or running at high speed under load. Anyway, you can try it for a short
> time and see if the lost steps problem is improved. If so, then you can look
> into getting a bigger power supply.
>
> Jon
>
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