One thing I have noticed - with the new TP - the path reaches commanded speed. mach gets close but is usually a few percent under.
Take this program steve posted a while back. ( http://electronicsam.com/images/KandT/testing/steve.ngc ) New TP http://imagebin.org/296859 If you calculate it out - it is about 3600mm/min. that is the commanded velocity (following path within .1mm aprox .004") it actually finishes a whole .5 seconds faster ;) With Mach http://imagebin.org/296858 it peaks at about 3300mm/min. sam (having too much fun...) On 2/20/2014 10:37 AM, sam sokolik wrote: > Steve! > > Here is your sample of gcode running the newest TP > > Original TP > http://imagebin.org/294551 (limit of the 1 segment look-ahead) > > New TP (which does arc-arc , Line-arc and line-line look-ahead.) > http://imagebin.org/294550 > > Robs hard work is awesome! (and it keeps improving) > > sam > > > On 04/07/2013 05:28 PM, Steve Blackmore wrote: >> On Sun, 7 Apr 2013 10:21:11 -0500, you wrote: >> >>> On Sun, Apr 07, 2013 at 10:13:11AM +0100, Steve Blackmore wrote: >>>> CV in LinuxCNC still does not work well. Have a look at this >>>> >>>> http://youtu.be/ph_IVXg1C9Y >>> Please share your gcode and your full config directory. >> Hi Chris - Here's part of the code - it's obvious early on without all >> of it. I'll post the config tomorrow - machine is at work. >> >> BTW - Changing N190 to >> >> N190 G64 P0.5 >> >> and it runs better, but that's far too much deviation. >> >> This was first reported on 26th July 2011 in a post >> "trying to understand EMC's operation" >> Have a read of that thread for way more information. Daniel Rogge >> concurs in his tests posted on 29th. >> >> I've re posted as this is still occurring since V2.4 ! >> >> N100 G0 G21 G17 G90 G40 G49 G80 >> N110 G91.1 >> N120 G1 Z20.000 F3600.0 >> N130 T1 M06 >> N140 (End Mill {6 mm}) >> N150 G43H1 Z20.000 >> N160 S12000 M03 >> N170(Toolpath:- Profile 1) >> N180() >> N190 G64 >> N200 G1 X0.000 Y0.000 F3600 >> N210 G0 X-1.974 Y8.147 Z6.000 >> N220 G1 X-1.974 Y8.147 Z-1.000 F1200.0 >> N230 G2 X-1.346 Y40.813 I1274.739 J-8.173 F3600.0 >> N240 G1 X-1.246 Y43.543 Z-1.000 >> N250 G1 X-1.175 Y44.975 Z-1.000 >> N260 G2 X0.630 Y65.631 I357.751 J-20.852 >> N270 G2 X3.629 Y86.169 I356.674 J-41.593 >> N280 G1 X3.738 Y86.813 Z-1.000 >> N290 G1 X3.885 Y87.608 Z-1.000 >> N300 G1 X4.121 Y88.649 Z-1.000 >> N310 G1 X4.891 Y91.654 Z-1.000 >> N320 G2 X8.045 Y101.818 I125.643 J-33.412 >> N330 G2 X12.017 Y111.685 I122.371 J-43.533 >> N340 G1 X12.167 Y112.021 Z-1.000 >> N350 G1 X12.392 Y112.507 Z-1.000 >> N360 G1 X12.836 Y113.360 Z-1.000 >> N370 G1 X14.404 Y116.145 Z-1.000 >> N380 G2 X48.101 Y150.602 I84.920 J-49.341 >> N390 G2 X94.143 Y164.886 I51.247 J-83.839 >> N400 G1 X98.585 Y165.027 Z-1.000 >> N410 G2 X107.856 Y164.832 I1.550 J-146.800 >> N420 G1 X114.650 Y164.312 Z-1.000 >> N430 G1 X121.416 Y163.467 Z-1.000 >> N440 G1 X124.191 Y163.060 Z-1.000 >> N450 G1 X127.048 Y162.615 Z-1.000 >> N460 G2 X139.931 Y159.885 I-25.733 J-153.243 >> N470 G2 X152.544 Y156.073 I-38.655 J-150.662 >> N480 G1 X157.534 Y154.334 Z-1.000 >> N490 G1 X161.108 Y153.062 Z-1.000 >> N500 G2 X183.667 Y143.969 I-122.738 J-337.027 >> N510 G2 X205.551 Y133.371 I-145.209 J-327.734 >> N520 G1 X207.732 Y132.276 Z-1.000 >> N530 G1 X215.815 Y128.556 Z-1.000 >> N540 G1 X219.037 Y127.150 Z-1.000 >> N550 G1 X222.272 Y125.782 Z-1.000 >> N560 G1 X223.416 Y125.300 Z-1.000 >> N570 G1 X223.904 Y125.085 Z-1.000 >> N580 G3 X237.774 Y120.073 I38.168 J83.912 >> N590 G3 X252.272 Y117.334 I24.318 J88.999 >> N600 G1 X253.479 Y117.248 Z-1.000 >> >> Steve Blackmore >> -- >> >> ------------------------------------------------------------------------------ >> Minimize network downtime and maximize team effectiveness. >> Reduce network management and security costs.Learn how to hire >> the most talented Cisco Certified professionals. 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