Re: upgrade strategy

Hi Mariss,

Sorry should be 18K. Is using twisted pair (from some left-over from
the installation of the computer network at work - 4 pairs
unshielded) a better idea than using those stranded wires?

Thanks

keongsan

--- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> Did you really mean 18 ohms? It should be 18,000 (18K) Ohms.
>
> Mariss
>
> --- In CAD_CAM_EDM_DRO@y..., "keongsan" <keongsan@y...> wrote:
> > Hi,
> >
> > I have upgraded the power supply to a 36VDC secondary, and
reading
> at
> > the rectified, filtered output showed 59VDC. However the G201
still
> > can only manage 14ipm with the Sherline and 3.2V 2A steppers
(half-
> > coil) with set-resistor 18 ohm. Seeing other reporting much
higher
> > speed, I can only assume that the following may be the cause of
the
> > low performance:
> >
> > 1. unshielded 22AWG motor cables (less than 2 feet)
> > 2. less than satisfactory pulse train. (deskNC for windows)
> > 3. unshielded data cables. (used stranded cables before. Now
> replaced
> > with solid core twisted pair taken from those cables used for
> wiring
> > computer network)
> >
> > The problem is getting suitable shielded cables. Supplier only
sell
> > such cables in large roll. Any suggestion how I can begin to try
to
> > tackle the above?
> >
> > Thanks
> >
> > keongsan