gene did say The day of picking up a defunct treadmill, or a surplus motor from one, seem to now be in the distant past, with one that I saw on fleabay, clearly well abused, 6 months ago that still had 3 days to go and was above 200USD then
my results from flea bay are different and 2 of my 3 machines run craigslist freebie motors and controllers ( until i scrape the coin for a mesa card and jons servo amp:) http://www.ebay.com/itm/2-5-HP-TREADMILL-MOTOR-complet-setup-with-controller-and-cables-/251265385921?pt=US_Cardio_Treadmills&hash=item3a809585c1 ymmv :) On Mon, Apr 29, 2013 at 8:22 PM, Gene Heskett <[email protected]> wrote: > On Monday 29 April 2013 20:12:27 Gregg Eshelman did opine: > > > --- On Mon, 4/29/13, andy pugh <[email protected]> wrote: > > > The Ward-Leonard arrangement is fairly elaborate in itself, > > > but running it from a rotary phase converter is just excessive. > > > > I'd take off the vintage Rube Goldberg (or Heath Robinson for thos on > > the other side of the globe) original setup and replace it with a > > single phase PWM driver and DC motor. > > > > kbelectronics.net has some with basic controls, just an on/off switch > > and a speed control knob with safety that requires the knob to be > > turned to zero before it'll start the motor after power has been off. > > An e-stop setup is up to the installer. > > > > The KBWT-26 list price is $168.00 (For 1HP motor) > > The KBWT-210 list price is $228.00 (For 2HP motor) > > > > Those are bare units, enclosure is up to the installer. They do have > > ones with enclosures and displays and more controls, also available in > > rack mount - all extra frippery not needed on a lathe. > > > That is not a bad idea, but everyone is ignoring the 800lb gorilla, which > is the cost of those larger PM field DC motors. The day of picking up a > defunct treadmill, or a surplus motor from one, seem to now be in the > distant past, with one that I saw on fleabay, clearly well abused, 6 months > ago that still had 3 days to go and was above 200USD then. I'd love to do > some sort of a bigger motor on my 7x12, but a 5 or 6 amp version of what I > have now is north of $300, well north. > > Cheers, Gene > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! > My views > <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> > Coming together is a beginning; > keeping together is progress; > working together is success. > A pen in the hand of this president is far more > dangerous than 200 million guns in the hands of > law-abiding citizens. > > > ------------------------------------------------------------------------------ > Try New Relic Now & We'll Send You this Cool Shirt > New Relic is the only SaaS-based application performance monitoring service > that delivers powerful full stack analytics. Optimize and monitor your > browser, app, & servers with just a few lines of code. Try New Relic > and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- jeremy youngs ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with <2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
