On 01/26/2012 12:20 AM, gene heskett wrote:
> On Thursday, January 26, 2012 12:59:48 AM Mark Cason did opine:
>
>> On 01/25/2012 04:44 AM, gene heskett wrote:
>> Hmmm, silly Q for you and Rafael: If, after having executed the G38.2
>> and the machine is stopped, what sort of havoc would I create if I
>> simply wrote the known height of the gage at contact, into #5063?
>> That might not be the correct #number but you get the idea. What ever
>> number would cause the machine's currant Z, both as displayed and
>> internally used to determine the next move, to be corrected to the
>> known gage height it is actually sitting at IOW?
I can't answer this :(
>
> Using bc or perl seems like a gawd-awful kludge even if it did work.
> LinuxCNC has its own math functions that appear to my untrained eye to be
> spot on, so why not use them directly?
Yes, it would be a kludge, but a fairly straightforward one. This
would have to be written as a "Go Between" script, that could read the
output of PCB-GCode, modify the output, and parse it so that
EMC2/LinuxCNC could understand what you want.
The 3 options I see are:
1) Modify the g-code output of PCB-GCode,
2) Modify PCB-GCode directly, so that it gives you what you want, or
3) figure out how to get EMC2/LinuxCNC to modify the g-code on the fly.
I have a hard enough time with EMC2/LinuxCNC, as it is, For me at
least, the only other option would be to edit PCB-GCode, but I'm not
well versed in ULP files.
Due to moving my shop, and having my CNC mill sitting on the floor in
pieces due to having worn out leadscrews, I'm not set up to test PCB-Gcode.
> An old friend and engineer back in about 1960 was fond of the phrase
> 'simplicate' and I'd think this qualifies. :)
>
> Cheers, Gene
For me, this would be simple...
DISCLAIMER: I've been using Linux since '94 (Early SLS version), and
I can write (and have written) BASH scripts in my sleep. They might not
be the most efficient scripts, but they work for me. I've been doing
this for so long, I do most things without really thinking about HOW to
do them.
--
-Mark
Ne M'oubliez ---Family Motto
Hope for the best, plan for the worst ---Personal Motto
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