RE: [CAD_CAM_EDM_DRO] Pulse generator and tuning Gecko 320 drivers....

Is there something about using a controller program and a PC for this
that you do not like?

If you run Mach1 you can just make a subroutine that shuttles the motor
back and forth a couple of hundred repetitions and then use the feed
override to vary the frequency. Works perfectly. When I tuned mine I
used EMC and just cut and pasted the same 2 few lines of code to make it
run for a while. In my case the tuning was without a scope, but I did
drive the motors as Mariss outlines in his tuning instructions.

Tim
[Denver, CO]
Sherline products at Deep Discount
Mach1 & DeskCNC with credit card ordering
www.KTMarketing.com/Sherline
Now selling Visual Mill

> -----Original Message-----
> I've been trying to get my Gecko drivers tuned. I tried Dan Mauch'
> scopeless method and it isn't working for me. I would like to use a
> pulse generator and a scope. I'm trying to find a schematic for a
> pulse generator that has adjustable step frequency and reversable
> direction output. At least that's what I think I need.