On 27 July 2014 05:58, Gene Heskett <[email protected]> wrote:

>> Does the code depend on a parameter that isn't set at program load
>> time?

> Well, for the G76 code, you do need quite a few parameters, but the only
> ones set at program load time are the Zstart, Zend, TPI or TPmm and the OD
> of the thread.

It isn't that, then. The values are right there in the code.

I have had strange behaviour when values are pulled in from the G-code
"analogue inputs" which may not have any value at the time that the
G-code it loaded.
(In 2.6 this gets much neater, my thread cutting macro now uses lines like this:
#4 = #<_hal[gladevcp.thread.pitch-f]> (Feed / Pitch)
To pull values into G-code direct from HAL.

I will comment that metric threads are not specified by threads-per-mm
so I think you have a bogus pitch calculation going on.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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