On Mon, 24 Feb 2014 23:09:15 -0600, you wrote: >On 02/24/2014 10:03 PM, sam sokolik wrote: >> I am surprised people still put up with me... I do have a lot of help >> from the community. The compact 5 configs using the latch and dual >> stepgens would not have been possible if not for Jeff and Chris's >> smarts.. (I am the big picture guy usually...) >> >> As far as machs acceleration violations. I am pretty confident that >> they are real. (again unless I am doing something wrong) If you want >> to see some huge violations - run the tort.ngc program. It has lots of >> diabolical motion. (granted - it is diabolical) I think though you >> should be able to throw any gcode to a control and is should process it >> correctly. >> >> >I saw a number of downward spikes where the velocity >suddenly dipped. >I can imagine those were times when the Mach driver was >unable to >get the CPU. But, they appeared to be where the instantaneous >velocity dipped by 25 - 33%, which is a HUGE velocity >discontinuity >for a motor to follow.
Despite what those figures appear to show, Mach's output behaves better than LinuxCNC's. It sounds much much smoother. I posted many moons ago Art's explanation on how it works and a Youtube video which clearly shows LinuxCNC's problems in comparison to Mach. I no longer use either on my router, I use an external control so am unable to test Rob's new TP. The annoying part about all this was the denial there was a problem in the first place and the time taken to get a fix. Well done Rob for taking this on and shame to those who buried their head in the sand or were in denial. Steve Blackmore -- ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
