On 05/09/2012 11:28 AM, Eric Keller wrote: > The embroidery machines are probably the best case given that they are > often like CNC machines. > > My mother has a large number of industrial sewing machines which have > been converted to single phase. Most of them seem to have originally > used 3 phase induction motors. I have never seen one with the three > phase running, but I got the impression that the motors are on all the > time at constant speed. I did collect one of the 3 phase motors when > her house was flooded in the 2010 Nashville floods, but other than > drying it out, I haven't tried to get it running yet. > > I suspect it would be worth scavenging these motors if they would be > willing to sell. Can't imagine they wouldn't be interested. > Eric
In a few weeks, I should be able to get a couple more for free. I'm disabled, so, with getting 3 motors for free, the cost of the electronics is more of an issue. From what I can find online, for 3 axis, it'll cost ~ $1000.00 for the electronics, plus PSU, enclosure, cabling, etc... etc... etc... Although, spreading it out over a year, or more, will make it a little easier to bear. X, and Z don't need such a large motor. Z won't matter so much, because the mass of the head will support it fairly well, but sticking ~20 lbs on the end of X, may distort the axis over time. I'm have an idea that I can mount the motor underneath the mill, and have it ride along with Y, fix the X axis leadscrew in place, and spin the nut to move the X axis back and forth. Looking at other servo system motor/controller combos, they can go for a few hundred, up to a thousand, or more, per axis, so I should be well within the ballpark. I can use the old electronics leftover from the mill conversion, to CNC my mini lathe, which is something I've been wanting to do for awhile. -- -Mark Ne M'oubliez ---Family Motto Hope for the best, plan for the worst ---Personal Motto ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
