Re: [CAD_CAM_EDM_DRO] Joy stick controlled stepper motor

Hi Bob,

I just posted (again) my 555 timer circuit for moving steppers. See
"circuits" folder in the photos of SherlineCNC list. It was made up to
drive a sensor around in a water phantom. You'll want to put in a
switch for the direction line, and then a push button for the step
pulses. The schematic shows six switches to turn on the power to this
circuit, which should be 1/2 of each push button. This allows the ramp
up of pulses to a stepper.

Alan KM6VV


Bob McKnight wrote:

>
> I have the stepper motors on my mill,
> Iwould like to just be able to run them with a joy stick while
> i work on the electronics and software. Anybody have a
> source of information? Maybe just a chip and an App Note.
> I would like to control the speed and the direction from the
> joy stick and would like to have a holding current when no
> movement is being made. I have an extra driver board for
> my MaxNC and 23 stepper motors like the MaxNC uses.
> I have a doz microcontroller boards with Z 8 chips but not
> sure I can use them without more help. Maybe one of the stepper
> motor kits like Ramsey sells would be a good starting point?
>
> Bob McKnight
>