Greetings everybody; I am contemplating adding some wobble to the speed of the spindle, with an eye toward reducing chatter by not letting it build up. I can probably hack up some buttons under the tach display to control it and may have to ask questions re that eventually but I've plenty of examples in the other camera related controls on my G0704 mill.
So I'm going to use the triangle output, with a slider to set the amount and another for frequency with a maximum of 1 Hz, that in deference to the PID that will follows it, hoping I can arrive at a better control than I have, although the speed control with the present PID settings is pretty stiff, it also has an overshoot of around 25% at a step in speed change. I haven't tried to recalibrate it since putting in the new, 10 tooth larger pulley on the countershaft. I think this gives me a unique opportunity to adjust the PID if I go crazy and add a total of 7 sliders, if I can make them small enough vertically, 2 for the wobble amp and frequency, and 5 more for all he PID params that count. Set it up to use the square wave output at say 20%, set frequency to about .33 hz and fine tune it live watching it on the halscope. Use a halmeter to get optimum values found and put then in the ini file. When happy, switch it to the triangular output of the siggen, and make the last 5 sliders controlling the PID go away. Does this sound like its doable? Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. http://pubads.g.doubleclick.net/gampad/clk?id=1444514421&iu=/41014381 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
