G76 - Pause in Z during exit taper Linux CNC 2.7.0
- skunkworks
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28 Sep 2015 20:17 #63142
by skunkworks
Replied by skunkworks on topic G76 - Pause in Z during exit taper Linux CNC 2.7.0
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- rellenberg
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15 Nov 2015 22:15 #65302
by rellenberg
Replied by rellenberg on topic G76 - Pause in Z during exit taper Linux CNC 2.7.0
I compiled 2.7.2 with the TP debug output on, and ran a stripped-down version of the example program. I see the velocity blip too running the axis sim config. It's due a bug in how the TP calculates desired velocity for an arc blend. It always uses the requested feed in distance / time, rather than distance / rev (which is what actually controls feed in synced motions). I have a hotfix ready to test in the
hotfix/bug438
branch on my github page. All it does is skip arc blends for any spindle-synced motion, which will fall back to 2.6.x behavior.
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