Re: [CAD_CAM_EDM_DRO] What is wanted in a controller,

Hi Bill,

Did that! I have a panel shaft encoder, and two push buttons (pb's).
One pb "rotates" through a list of jog distances, the other pb "rotates"
through the list of axis. Then, when one moves the encoder knob, the
currently selected axis moves the currently selected jog distance! I
like it!

Alan KM6VV


Bill Vance wrote:

>
> How about making the jog step size push-button programmable; I.e., 1" per jog,
> 1/2", 1/4", 1/16", microstep. One detent click per the jog-wheel = that sized
> movement.
>
> Bill
>
> On Wed Feb 13 14:40:40 2002, Alan Marconett KM6VV, <KM6VV@...> wrote:
>
> >Hi Drew, Dan,
> >
> >The "stepper motor" jog knob would be incremental also, I believe. One
> >would need an absolute encoder (with detents) if you wanted to "get
> >back". *OR*, what about a "feedrate override" display, either LED or on
> >the screen, that would allow you to get back? cheaper, wouldn't need
> >expensive ABS encoder. But knob would not be graduated, just
> >"relative", I think.
> >
> >If we use a "DRO" approach, then perhaps one could "zero" the knobs,
> >THEN we'd know exactly where they were! (Zero the knob, and "reset" the
> >encoder chips to zero).
> >
> >More thought required. I just ordered a DRO kit from Dan M., that is if
> >PayPal took my "payment". An hour later, and I have no confirmation.
> >Get anything Dan?
> >
> >Alan KM6VV
> >
> >
> >Drew Rogge wrote:
> >>
> >> After reading Fred's explaination of how the "jog" knob on
> >> his control works I'm pretty interested in that. Having the
> >> tactil feedback would be nice. It kind of reminds me of how
> >> the volume and channel knobs work on most car radios now. The
> >> knob has something in it to provide the "clicks" as you turn
> >> but the CPU in the radio is really just counting something like
> >> quadurature inputs to know which way and how much you've turned.
> >> I've also noticed that if you spin the knob too fast the radios
> >> will usually miss some of the clicks.
> >>
> >> On the feedrate knob I think it's important to be able to
> >> set/reset the knob to the progammed feedrate. Same for spindle
> >> speed override.
> >>
> >> Drew
> >>
> >> Alan Marconett KM6VV wrote:
> >> >
> >> > Hi Drew,
> >> >
> >> > Thanks for your thoughts! I think I see what you're talking about with
> >> > the video tape jog knob. I have a high end Sony VCR with a knob that
> >> > sounds like what you're describing. My remote probably didn't cost
> >> > $200-300, but I get what you mean. This would be different then a
> >> > "directly calibrated" jog wheel, which would be more like a manual
> >> > machine. Two different approaches.
> >> >
> >> > The feedrate knob is one I (hobbyist) hadn't considered until these
> >> > threads. I can see how it would be useful. That sounds more like an
> >> > absolute shaft encoder. Or perhaps a pot and A/D.
> >> >
> >> > Spindle on/off, coolant on/off etc. buttons would be easily added to a
> >> > pendent. After a few more devices, it makes sense to do it with a PIC,
> >> > to minimize the "wires" between the pendent and the control panel, and
> >> > read the various "analog" input devices.
> >> >
> >> > Alan KM6VV
> >> >
> >>
> >> --
> >> Drew Rogge
> >> drew@...
>
> --
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