On Wednesday 18 November 2020 14:59:21 Eric Keller wrote: > Gene, > How long were you in the room with the motor running before you left? > I'm curious how long you can leave one of these things running. > Eric Keller > Boalsburg, Pennsylvania > > On Wed, Nov 18, 2020 at 10:34 AM Gene Heskett <ghesk...@shentel.net> wrote: > > Greetings all; > > > > Leaving it run at 4g's overnight wasn't quite the result I expected. > > > > Going out to check on it and work on the BS-1 project, I could feel > > the heat on my face from 3 feet away, but it was still humming along > > at 4g's. No smoke. But the hoses on top of the motor were melted, > > for about 3" away from the spigots on the motor. And the tank had > > lost 3 of its 4 gallons of water with no sign of where it went, > > nothing wet so it either came out as steam, or it melted the hoses > > quite early and its had time to dry. Shut it down. Tank is cold. > > Pump lost prime for lack of water at the intake. > > > > I think I can say that experiment was a failure. But the motor still > > runs whisper quiet. And it looks like I need to get another big coil > > of hose, or figure out how to pull at least 6" thru the cable chain > > to reach the motor with "good" hose again. Plenty of spare at the > > tank end of the run. Sigh... It, and the motor mounts, will have to > > await the arrival of the better motor. > > About an hour Eric, and when I left I could still wrap a hand around the motor. I didn't have both eyes open when I came back in this morning or I would have had an IR thermometer in hand. But I'd hazard a guess it was above 300F when I came back this morning. I could feel the heat on my face thru my beard from 3 or 4 feet away.
Take care & stay well 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
