Re: Scanner/Digitizer skip function/probe details?

Alan M wrote:

>Well, now that I have a clue, I can test it. AND/OR, I can
>incorporate it in my controller. I have been thinking of adding
>variables. NIST uses #nnn for a variable name. Not very
>intuitive (no disrespect intended as I admire the efforts of NIST;
>but variable NAMES are a lot easier to work with). CNCpro has
>variables, might be same/similar. What's the standard (ha)? I'm
>inclined to "do my own", you know how us programmer types are. ;>)

Alan,
Please look at some commercial controls (I suggest a current Fanuc
style and HAAS. As I have previously said one is a longtime standard,
the other is selling LOTS of machines) and implement variables as has
ALREADY been done! If you then wish to "add" the functionality
of 'named' vars, go to it! But we DON'T need another
gcode 'flavor',IMO! YES, I do know how us programmer types are. :-)
You already have a parser set up to look for some char(or two),
followed by whitespace(maybe)and a numerical parm. This means no
change to the parser structure is necessary if you implement numbered
vars, as in your NIST eaxample above. When you go to named vars, a
lot changes... And the BASIC functions of the parser MAY be
compromised.

I'll keep shouting from the rooftops.. "Yes we have fast processors,
but it's no excuse for pudgy code. Time you use doing something CAN'T
be used to do something else somewhere else! Make sure you've got
your priorities straight." Translated, this means I'd much rather see
some GOOD lookahead functionality and live with numbered vars, than
have a parser which reads my mind, but takes so long that the rest of
the system can't get the REAL work out in time.

>Sounds like MaxNC's spindle taper is different then Sherline's.
>Unless their probe comes apart! That's twice I've heard the name
>Renishaw, the others I kinda know a little.

The MaxNC probe is not tapered! It has/did have? a straight shank.
Mount in any collet(correctly sized) or chuck.

Renishaw is a high dollar metrology(part and machine measurement)
company.

Hope this helps.

Ballendo