Re: A little progress made

On Fri, 23 Jun 2006 11:55:07 GMT, Ignoramus14534
<ignoramus14534@xxxxxxxxxxxxxxxxxxxx> wrote:

I fully redid the timing operation of my microcontroller. Now it wakes
up every 1/10 second and records a time tick, and based on that I keep
track of time hours/minutes/seconds since start, and also of elapsed
time. I use elapsed time for preflow/postflow and such.

(wen I say wakes up, I must clarify that it does not sleep, it keeps
running the main loop, but it interrupts itself with a timer interrupt
evey 0.1 sec)

As always, the source code is released under GPL and is here

http://igor.chudov.com/projects/Welding/11-New-Rectifier/source.txt


I was using my Lincoln 175 TIG and rapidly running out of Argon. This was a
part of convoluted SS exhaust manifold that I am nearing the completion of.
One moment I would be tacking thin bits being careful not to burn through and
next moment I would be using some serious current. This made me think of you
project and the following issue. My Lincoln has postflow of 15 sec which his
hard wired. Very irritating when the main gage is reading zero and I was
tempted to aim the arc at the Argon tank to squeeze out some more gas.
You have a programmable controller. You know how much current is flowing and
for how long it has been flowing. It would not take to much coding to come
up with postflow based on those parameters. Another nicety would be to be
able to adjust the flow based on current. Can your microcontroller
incorporate a flow controller?



Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca

void _-void-_ in the obvious place



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