On Wednesday 23 October 2019 08:58:04 andy pugh wrote: > On Wed, 23 Oct 2019 at 13:34, Gene Heskett <[email protected]> wrote: > > Apparently I must have skipped that class. A simple search for > > brushed motor drivers > > should have turned up the ones I bought, but didn't. > > I suspect that very few items that are for brushed motors will bother > to mention the fact. > It might be better to exclude brushless. To most people a brushed > motor is the default DC motor. > > Maybe: > DC motor driver -brushless -stepper
I'll have to remember that minus sign, looks usefull. Thanks Andy. Back to play time, I found after it had sat with LCNC running, that it was crashed after a couple days. Crashed because one of the USB3 to sata adapters had gone funkity, and the poor pi went out of its skull doing hard resets and complaining about a possible bad cable. I fool around with it for most of an hour, and finally got a new adapter out of a sealed bag, worked. So then I reset a week old git clone to master, built it and installed it, fired it up and since I've edited lathe-pawn to make 50 copies, I set it up to make them out of air but it was cooling rapidly so I stopped it in the middle of the 10th. Zero latency overruns were logged to the terminal at shutdown. Yaay-hooo! And the ripping canvas sound of the moving steppers is essentially gone unless a G0 move is used, and even those are at a considerably lower noise level compared to the noise made by the pi3 running the same code. And just as important, the video backplot is NOT RUNNING visibly behind the machine now. One could call me a happy camper. Now, switching to the 6040 mill, which is running a 5i25, driving a 7i76D, one last question. Where the heck does it keep the pin log when initializing the cards at linuxcnc startup? I need to find the gpio numbers for stepgen-4 on tb3-3, of the 7i76D since I am not useing the 4th stepgen, and those outputs are differential, with what s/b stepgen 4's - output, but I want to feed that the output of a pwmgen to speed control one of these pumps with some pyvcp code I've not written yet. Thanks all. 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
