On Monday 01 June 2020 14:17:14 Gene Heskett wrote: > On Monday 01 June 2020 01:02:01 Gene Heskett wrote: > > On Sunday 31 May 2020 22:58:31 Chris Albertson wrote: > > > > Second, my testing for motor heating may not have been close enough > > to stopped as I was just turning the speed down to about a tick a > > second from the generator which may not have been long enough to > > cause a current turndown. So I'll plug it in w/o any drive for a > > hour tomorrow to see if it still gets that hot. Maybe watch it with > > a kill-a-watt? > > With the kill-a-watt watching the supply, its 16 watts when warmed up > but truly stopped. And does not increase when its moving at <10 rpm. > I think that says it doesn't do a stopped current turndown. > > Playing with the function generator, it was up to about 45 watts for > the whole kit at an estimated motor speed in the 4k rpm territory, but > all it took to error the drive was a finger touch on the shaft. In > red led on mode the driver shut down the draw to about 3.5 watts, but > was holding the motor a wee bit. In that event, "home would be lost" > since it takes a powerdown reset to recover. So I will arrange for > the alarm output signal to do an unhome. > > At about 2k rpms, the draw is about 30 watts. And torque was abundant. > I can also, using that alarm signal, throw up a red led in the axis > gui. Probably should make it blink too since thedrivers led doesn't. > > Acc amazon, the Ender3 printer s/b here today, its out for delivery. > Got it, beat me up assembling it and I don't think I did it quite right, the verticals need pulled in about 20 thou at the top, and that causes a bit of Z bind. The instructions to assemble need help, it wasn't until I had it about ready to turn on that I finally discovered how the z home actually worked and finally got it mounted correctly. But it seems to work, I powered it up, let all the heaters come to pla temps, but w/o any pla loaded so completely odor-free. But now its past due for dinner. The controller has an empty u-sd socket and a smallish usb port, looks like an OTG port. Does anyone know what thats about? No other documentation came with it. 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
