extracting metallic elements from mineral ores is more energy intensive than extracting from existing metallic objects. this can be an important point to bring up for whoever is interested in reconditioning junk items, because cost of futile ass busting often exceeds cost of disposal, and the two costs can usually just be added in many cases.
--- On Sat, 6/9/12, Dave <[email protected]> wrote: > From: Dave <[email protected]> > Subject: Re: [Emc-users] Parting out a huge "CNC turret punch" > To: [email protected] > Date: Saturday, June 9, 2012, 7:55 PM > I help keep one running. > So it is possible. :-) > > We replaced all of the capacitors in the power supply after > the machine > was purchased. Cheap insurance. > > The drives have been trouble free, but the control flakes > out once in a > while. Usually it just stops and forgets what it is > doing > > The control is an antique and it should be replaced, but the > owner is > too cheap to do that ( I have offered ). I > have a PC rigged up to load > programs into the GE control so the tape drive is no longer > required. > > On the machine I help maintain, the feed drives are huge and > replacing > them would be very expensive. Plus he has > spare drives. > > The machine is a very big lathe - I think it weighs about > 35,000 lbs. > It is massive. > > Dave > > On 6/9/2012 4:05 PM, Jon Elson wrote: > > Dave wrote: > > > >> If the CNC control is GE, then the drives and > likely GE also. > >> > >> I know a guy who might have some parts and manuals > for that control if you decide to get it going. > >> > >> > >> > > URRRrrp! No, unless it is totally functional > after the move, it would > > most likely be > > a complete waste of time to try to resurrect such an > ancient control. > > If GE, that > > means PRE-Fanuc, so we are talking DTL ICs, maybe, from > the mid -60s, > > and about 250 separate PC boards and 1000+ chips. > Also, quite possibly, > > PRE CNC, meaning no computer, and therefore, no > diagnostics. If a chip was > > bad, it would do crazy motions when you gave certain > commands, and you > > had to infer the bad chip from the numbers > involved. YUCK! I just had some > > experiences trying to get some GE Hi-Ak drive running, > and after several > > puffs > > of smoke, the guy gave up and got some Copley amps on > eBay. he had 3 or 4 > > complete controls there, but they just kept burning > up. I guess when > > this old > > gear sits for too many years, it gets very hard to > bring them back to life, > > what with bad capacitors and dirty connectors. > > > > Jon > > > > > ------------------------------------------------------------------------------ > > Live Security Virtual Conference > > Exclusive live event will cover all the ways today's > security and > > threat landscape has changed and how IT managers can > respond. Discussions > > will include endpoint security, mobile security and the > latest in malware > > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's > security and > threat landscape has changed and how IT managers can > respond. Discussions > will include endpoint security, mobile security and the > latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
