Step/Direction puzzle

Hi Richie,

How are you powering the Gecko's with +5v? Read the past threads on
Gecko power. Sounds like it is trying to be powered from the parallel
ports.

HTH

Alan KM6VV


richiemcb wrote:

>
> I'm trying to set up a system with 3 Gecko 201's to drive a Sherline
> Mill. To drive the steppers I'm trying out CNCpro and Supercam. When
> I tried these on 2 different laptops I find that the X axis motor
> only turns in 1 direction when jogging using either piece of software
> y direction works fine. If I try it out on a 3rd laptop I can get
> CNCPro to work but not Supercam - it fails with the same problem only
> one direction on the x axis.
>
> I am at a loss to explain this since I'm setting up the pin out's the
> same in the software on each machine. It seem's the x direction
> signal is not being asserted on 2 of the 3 machines. The problem
> seems to follow the software x axis config eg if in Supecam pin 2 and
> 3 is x step and direction it only turns the stepper one way. If I
> assign the y axis to 2,3 the same motor will turn in both directions
> but the motor attatched to 4,5 will now only turn in one direction.
>
> The Gecko's are being driven at 48 volts current limited to 1 amp.
>
> Has anyone got any clues to check out? I'm now doubting my own
> sanity :-)
>
> Richie