Re: [CAD_CAM_EDM_DRO] Re: Newbie building router ?

Hugo,
As a reference our Hobby CNC Unipolar driver boards working at 28VDC
with 5V, 1A steppers will allow @200RPM useful. We can get @ 300RPM with
careful ramping. Your 3RPM is extremely slow.

Regards,
Dave Rigotti
Hobby CNC

----- Original Message -----
From: "Doug Fortune" <pentam@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, June 08, 2002 3:59 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Newbie building router ?


> Hugo:
>
> You can't paint all the colours with the same
> brush! As he said he is using unipolar motors and
> power resistors, it might be the Alzanti PVP134 L/R
> driver he is using.
>
> Your statement (of 20 to 100V with 5.1V steppers)
> only applies to bipolar drivers.
>
> Doug Fortune
> http://www.cncKITS.com
>
>
> hugo_cnc wrote:
> >
> > Can the driver handle more than 24V?, the higher the voltage the more
> > torque at high speed. Your stepper are 5.1 V, you driver voltage
> > should be between 20 and 100 V.
> >
> > --- In CAD_CAM_EDM_DRO@y..., "rmtuckeruk" <rmtucker@l...> wrote:
> > > the driver cards are from alzanti.com,i do not think the problem is
> > > with the drivers, but may be the motors.as i said they are superior
> > > electic (slo-syn) M091-FC-315C 5.1V @ 1.3 AMPS PER PHASE UNIPOLAR
> > > im running them at 24v using power resistors.
>
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