On Wednesday 13 January 2016 14:45:51 John Kasunich wrote: > On Wed, Jan 13, 2016, at 01:26 PM, Gene Heskett wrote: > > I think Stuart Stevenson may have some suggestions, his Cinci makes > > very precise locomotive parts, and has been rumored to have made > > earthquakes when a servo oscillated during the calibration. ;-) > > Airplane parts, not locomotive. :-) > The msg I recall was referencing a huge casting being machined to an equally huge (16" OD or so) axle bearing socket, part of a locomotive traction truck, warmed up the casting, parked the bearing on a block of dry ice, pick it up with insulated gloves & dropped it into the socket. I assume that 1 minute later, the bearing would have had to be removed with a cutting torch. Or the whole thing dropped back into the furnace and recycled for the next casting.
That was 3 or 6 summers ago though. > And the earthquake was caused by another of his LinuxCNC controlled > machines, a large Giddings and Lewis boring mill. > http://willepadnos.net/jmkasunich/g-and-l-yaxis-1856.jpg > 45kW servos on that beast I can see why. Why do I always get the toys? Oh wait, never mind, my patch of dirt isn't big enough to unload some of that stuff on. Tain't even square! And on this yellow clay, either of those machines would sink, about a foot a week in damp weather. The SG of this house is obviously less than 1.0. 28 years ago we had a 6 pack of those galvanized half a washtub gismo's keeping the dirt off the basement windows. Today they've been removed as the dirt is now a good 3" below the bottoms of the casements. It is settling, or the house is floating upwards as the seasons go by. If it outlasts us is all that counts. 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> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
