re:Re: Pendant

Terry wrote:

>This device will plug into any step and direction motor control
>board and drive it in four axis by means of switches set out like a
>joystick. It means that you will have a power-feed for four axis
>with selectable speed without a computer.
>
>I am designing two versions, a simple user selectable speed version
>and a completely programmable one. The details for the later have
>not yet been set in stone.

Terry,

I assume you mean it will control UP TO 4 step/direction driverS.

We had a thread awhile back re: manual control which brought out a
lot of thoughts on this sort of device. I put a lot into that thread.
You can easily get 90 and 45 degree moves with your powerfeed.
The 'programmable version could easily accomodate other angles.

Dan M had a similar device on his old 5A boards. Used a 555 timer to
get the pulse out, a pot to set the rate (and ramp up/ down manually
if wanted/needed), and a switch to select the axis (one axis at a
time only).

As to "Is it wanted?". There is a relatively small step between the
simple power feed and full CNC control (basically a computer, CNC s/w
program, and wiring harness). Most who have taken the time to fit
step motors to their screws will want the CNC, IMO. But the thread
referenced above shows that "manual control" IS desirable by many.

And a WELL DONE product, PROPERLY MARKETED will ALWAYS find buyers!

Hope this helps.

Ballendo

P.S. I am interested in your 'programmable' thoughts...