> On Sat, 2009-04-11 at 22:32 +0200, Dirk wrote: > ... snip > > Hmm, these motors, and the SCR too, look interesting. But I have had > > my share from customs when I bought stuff in the US. And although > > these motors don't seem to be expensive, I don't know how shipping > > will turn out. > ... snip > > I have improved on that. See the pictures from the link above. This z- > > stage works pretty good. > > > > Dirk >
I have a nice 400 Hz washing machine motor that does 17,000 rpm that I pulled out of a dumpster, that I have been saving to pair up with a nice high speed spindle. I have test run it on a Danfoss vfd and it was reasonably well balanced at top speed. Like this: http://cgi.ebay.co.uk/Hoover-Washing-Machine-HNL-7146-Motor-and- Brushes_W0QQitemZ190299650744QQcmdZViewItemQQptZUK_Home_Garden_Washing_Machines _Dryers_Parts_Accessories_ET? hash=item190299650744&_trksid=p3286.c0.m14&_trkparms=72:1686|66:2|65:12|39:1|24 0:1318 Has anyone ever used one of these with a vfd to power a high speed spindle? I wonder if Dirk's bearings would be able to handle the heat... Tom ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
