Re: Progress!!

Don,
No, and Yes - It would actually be easier, in some ways, to write a
Windows version, but there is a problem in writing ANY windows version, and
that is Non assured latency (even worse than DOS). The problem is, you can
loose a LOT of clock cycles to other apps, and therefore you don't know how
fast you program will run, or even if it will pause

That said, the first version I'm doing will continue to be DOS, and then
I'll do a Windows Version, but that's a ways off. I've been REALLY tied up
at work, but things are starting to slow down now, so I should have more time.

I figured out the limit switch problem today (Hint folks, the limit
switches don't work in the version that's out there now - however, the hold
button version DOES work). The next big problem after that is that there
is a stack overflow problem that I need to solve. I know what's causing
it, I just have to fix it. You won't hit it until this problem until you
program is about 32,000 lines long! The problem is, to fix it, I have to
re-write the G-code interpreter, and therefore, I need a lot better
reference for G-code than I have. For instance, are they always one per
line? If I get code Gxx, and I guaranteed X parameters afterwards etc.

Charlie
At 07:24 PM 5/25/99 -0700, you wrote:

>From: Don Hughes <pencad@...>
>
>
>
>> Well, I have an admission to make - I'm re-writing (Maintaining)

Stepster!

>> The thing is, so many things could be wrong, and I'm ONLY working with
>> code (I don't have a CNC Mill - YET - anyone have some cheap ideas for my
>> Sherline)
>
>Charles:
>
> Can you tell me whether the update you are doing to Stepster will make
>it a Win95/98 compatible version? I'm glad to see that you have
>'stepped' up to keep the program rolling along and up-to-date, mt
>sincere thanks for taking it over.
>
>Don Hughes
>Vancouver, BC Canada
>>
>> There IS a Stepster E-Group at
>>
>> http://www.egroups.com/list/stepstercnc/
>>
>> or to subscribe
>>
>> e-mail
>>
>> stepstercnc-subscribe@egroups.com
>>
>> My GUESS is one of 2 things - The most likely is that the 486-66 can't RUN
>> faster than that, OR you're using steppers that are a bit weak for your
>> mill, and you loose steps
>>
>> Charlie
>>
>> At 06:16 PM 5/25/99 +0100, you wrote:
>> >From: "Ian W. Wright" <Ian@...>
>> >
>> >Hi,
>> >
>> >I've actually made some progress on my CNC mill project. After a lot of
>> >fruitless experiment I've finally got a usable driver circuit working
>> >and I now have motors rotating in response to the PC.
>> >However, they only seem to do so at quite a pedestrian pace and I
>> >wondered if anyone can give me any advice on 'fine tuning'. I am using
>> >Stepster on a 486/66Mhz PC and I have currently set the 'PC speed
>> >factor' to 2500 - everything else is as the default set-up. However, I
>> >can't get the motors to step reliably with a 'F Rapid' factor greater
>> >than '%30'.
>> >Is this normal or should I adjust something to speed things up? I have
>> >read the description of how Stepster works and find it almost
>> >unintelligible and unhelpful in that it doesn't give any indication as
>> >to which way the factors should be adjusted and by how much.
>> >I am very much an amateur at this and hope that you will treat me gently
>> >for which I thank you.
>> >
>> >Best wishes
>> >
>> >Ian
>> >
>> >--
>> >
>> >Ian W. Wright LBHI
>> >Sheffield Branch Chairman of the British Horological Institute.
>> >Bandmaster and Euphonium player of the Hathersage Brass Band. UK.
>> >See our homepage at:- http://www.iw63.demon.co.uk/ or
>> >http://www.GeoCities.com/Hollywood/6067/index.html
>> >
>> >'Music is the filling of regular time intervals with harmonious
>> >oscillations.'
>> >
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