RE: more R,P,Y axis conventions (rotary)

Hi Ballendo!

comments and snips below:


ballendo@... wrote:

>
> Alan,
>
> (snips, inserts below)
>
> >I replaced my incremental move keys '-' & '+' with '<' & '>' (like
> >G91, except we don't get g-code yet). This frees up the '+' & '-'
> keys for the 4th axis.
>
> Be careful here! You've just used the decimal point key. For jog. Now
> you may be reading it "shifted" so there's no technical conflict. But
> you've made it a little bit harder on the operator, IMO. The [ and ]
> keys are used for "expression evaluation" in some g code controls, so
> I'd stay away from them as well...

Yep, decimal key. Bad thing? at this "main" level, it can't do
anything else! Alias to either '.' or '>'. I'm open for suggestions.

>
> Think with me for a minute. There are three types of keypress in CNC.
> 1) Emergency.
> 2) single press/Immediate action. (like jog keys)
> 3) multiple input required before action. (entering a param, or coord)
>
> Is setting an increment to jog 1,2,or 3? And are you going to use
> a "table of increments" like stepster,DeskNC, and many commercial
> controls? Or a "settable" increment (like CncPRO)? Or both?
> This may help you decide how to use the keyboard.

Setting the increment is an "entry string", a '3'. As is the absolute
position command.

>
> >I set up an increment size, in inches or degrees (see
> >"NEW" below), and then move that amount when the '<' or '>' keys are
> >pressed.
>
> >In jog, the COMMON keys move the four (4) axis, or the panel encoder
> >moves the "current" axis.
> >Slight paradigm shift. In main it's "current axis". in jog,
> >it's "press the key", and the encoder (jog mode 2?) operates on
> >the "current axis" also.
>
> Sounds like you're having fun. More to it than meets the eye, at
> first, huh?
>

Way too much fun! Was just going to be a simple jog. Now? I want to
move the code (or part of it) to a hand held computer. Yeah, a little
like Sherline's.

> >From "main" (as above) an 'E' command (or menu selection?) allows
> >you to type in a new absolute (like a G90) location. I'm trying
> >something I think is NEW here, If "current axis" is XYZ, then I want
> >inches. if ABC, then I want degrees. neat?!
>
> Nice touch. Do you "remind" the operator which to enter?

Oh Yes! "Enter Angle degrees:" or the appropriate prompt. Also show
the value that is used. I use this same mechanism for start and final
feed rates, etc.

HAVE A MOST EXCELLENT THANKSGIVING!

Alan KM6VV

>
> >Maybe I'm thinking of XB? Ya know, to cut that crankshaft plate?
>
> Lotta ways to skin that cat, speaking in axis selection(s).
>
> Ballendo