Re: [CAD_CAM_EDM_DRO] Re: testing with multi-meter - GECKO

andrewyslee wrote:

>Direction: terminal 8 (dirn) toggle between 5V and 0V as motion
>direction changed. OK
>
>Used MDI to move all axes motor slowly
>G91 G01 X1 Y1 Z1 F0.001
>terminal 9 (step) X-axis: 0.49V
>terminal 9 (step) Y,Z-axis: cycle between 3.8V to 5V
>
>

This sounds like your problem. Either your parallel port is bad, the
cable is
bad, or the optoisolator in the Gecko is bad. The opto is socketed, anf you
can probably get a replacement from Digi-Key.

Disconnect the wire to terminal 9, and see if it starts going from low to
+5 V. It should go somewhere between .4 and at least 3.5 v with no load.
Terminal 9 of the Gecko should go to roughly 5 V, assuming the +5 V
is still hooked to "common".

Jon