On Dec 3, 2013 2:42 PM, "sam sokolik" <[email protected]> wrote:
>
> I have not seen the blip..  (but surprisingly I may have found a blip in
> master...)
> Ok - spiral - wow.  Running at almost 400ipm at the largest diameter.
> Damn  impressive.
>
> I am a bit perplexed though..  If I run stellabee1.ngc (
> http://electronicsam.com/images/KandT/testing/stellabee1.ngc ) with
> g64P.005 - it actually runs faster with parabolic blends (master).
> (40min vs 50 minutes about)  I was expecting a 2 fold at least
improvement.

The reason for that might be the arcs in the program. I reduced the
acceleration of arcs to fix the overage in arc-arc.ngc, but the tradeoff is
lower performance when there is a lot of acceleration and deceleration.

> While the penguin -  (metric so .1 is about .004")
> parabolic blend  P.1=2:21     Strait G64=4:12
> circular blend      P.1=1:41     Strait G64=2:27
>
> So - I don't know if that is correct - or there is some issue.   Is the
> stellabee file just too wacky for the readahead to help?
>
> I could not run the stellabee file with strait g64 because it fails.  I
> will try to get more info. (large jump in position/acc)
> Ok - I did a halscope with program line as part of it..  With stellabee
> and strait G64 - looks like line 32142.
Could you build the program with my debug flags enabled? It will spit out a
log that will be useful to diagnose what's happening. Run this command:

make EXTRA_DEBUG = '-DTP_DEBUG -DTC_DEBUG'

then run Linuxcnc like this:

linuxcnc > test.log

This works in simulation mode to dump a log of what's happening in tp. I'd
like to see if these spikes are visible in the planned motion.

Thanks!
Rob
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