On Sunday 06 September 2015 09:03:41 Erik Christiansen wrote: > On 06.09.15 06:17, Gene Heskett wrote: > > Heck Erik,I don't even play one on tv. ;o) Thermal expansion > > shouldn't be a problem as the alu frame will likely not warm as fast > > even if its expansion is greater than a piece of A2. Temp range > > over a year in that building is from about 40F to maybe 105F when > > its all closed up in the summer sun. > > Gene, if one of the bearings is able to slide a bit at the outer race, > then I guess it's not a problem. > > > But I have a vent fan that comes on when the humidity or > > temps go about 70 or so, just enough electric heat in the winter to > > keep everything above the dew point. I hate rusted tools. > > I hear that's a problem in England too, and they often use a > dehumidifier. The power consumed by a small compressor has to be much > less than a heater. > > Erik > Yeah, if I could find an affordable heat pump, that would be a treat. If shaped right, I could build a "tube" in the wall, and use a normal AC unit, turning it butt end in, in the winter time. But that idea has warts when the temps outside get below about 45F because the now outside coils freeze up. And WV winters spend a considerable amount of time below 45F, sometimes in the - range. A real heat pump, with the outside coil buried 10' deep in this yellow clay gumbo would be ideal, but likely north of $1500 for an 10k btu unit. For that, I can let the thermostat turn on a 1500 watt resistance heater for several years, holding it to something north of 45F, or whatever is above the dew point. I have a 2nd heater, another 1500 if I am working out there, but its an electronic thermostat that forgets to come back on if there's been a power bump of 1/20th second. Very nice little $26 heater otherwise.
Back to the lathe, I took a glass so's I could see down into the hole I thought I recalled leaving a broken tap in. But my 2 ygear old memory lied like a rug, when I got some good light into the hole I was looking at the socket end of an allen set screw! And it was loose. So I took it out, took it apart and cleaned everything up with acetone, painted the shaft behind the threads and the threads with my threadlocker, which turned out to the high strength Permatex version, screwed it on and off to distribute it better, then screwed it on tight. It went on about 10 degrees past the old hole. So, I have spent the day making a clamp and a pair of white ash form fitted clamp pads to grab the flywheel after that permagoo has had a chance to setup tomorrow, with the intentions of grabbing the flywheel of the motor I took off in these clamps right at the end of the table, turning the head on the mill 90 degrees CCW, and using it for a horizontal drill AND horizontal rigid tapping. I have more of that allen screw so this time I'll put in 2 at 180 degrees from each other, again short tapped so they jam tight. And they will get put in tight, 1/16th turn from broke, but not permagoo'ed. Maybe some rtv so I can get them out, or retighten them later. Humm, since there are two diameters to this fit, one nominally 3/8" at the threads, and one nominally at 5/8" where the motor shaft steps up and fits inside this flywheel for about 1/2" after the shoulder, I could put two more in at 90 degrees. That would depend on how long my tap for that screw is as theres about 1/2" of iron to get thru before I'd hit that expanded portion of the shaft. Very tempting to try though. Not considered is the fact that I will probably need 5 or 6" of padding under the motor clamps in order to be able to reach the shaft and drill/tap the holes. Horizontally it can only get down to perhaps 6" above the table. End of the posts slot, darnit. I hope you aren't laughing too hard at an old farts memory problems, but I can take that with a grin in the knowledge that it will someday be the same for many of you. ;) I hope thats not too depressing. :( Bottom line is that I am having fun solving these problems, often with help from 3 or 4 of you, thank you very much. Now its time to see if I can refill the fridge door, and get us a bite to eat. 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> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
