Re: [CAD_CAM_EDM_DRO] re:Re: L297/298's

Hi,

Thanks everyone for the advice. The power supply I was using for the motor
supply is a large computer switch mode one so that may be affecting the top
speed. I currently have the motors connected in full-coil mode (one of them
only has 4 wires anyway). I am ramping up the speed, I found early on that
trying to start at speed doesn't work. Next job seems to be to make a
proper motor power supply and I have a nice big 24volt transformer sat
looking at me so, as soon as I can pluck up courage to go and queue for an
hour or so at the components shop for the other bits, I'll try it again.

Ian
--
Ian W. Wright
Sheffield UK

----- Original Message -----
From: <ballendo@...>

> Jon E gives you some good advice.
> I would definitely increase the power supply voltage.
> It doesn't hurt to have some extra amps waiting in the wings, either.
>
> Also, Are you connected "full-coil" or "half- coil"? (assuming you
> have 6 or 8 wire motors) Although it goes against the "common sense",
> you will almost always get better performance(speed) from 1/2 coil
> connection. Mariss has explained the REASONS in previous posts.