> -----Original Message----- > From: Jon Elson [mailto:el...@pico-systems.com] > Sent: Monday, April 29, 2013 1:00 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] converting Monarch 10EE > > andy pugh wrote: > > > > It has to make more sense to couple a 3-phase motor and > > single-phase-input VFD directly to the spindle? > > > The motor is an odd frame, and also has MASSIVE torque at low > speed. So, the 10EE has no back gear. It probably works MUCH > better at low speed than a VFD and typical 3-phase motor. > You could make an argument for a DC drive for the motor, but > that could be a major project, and not a good one if you aren't an > electrical engineer. > > Jon
The 10EE does utilize a DC motor with impressive low speed torque, but it none-the-less does have a backgear. The gear assembly is on the end of the motor, not in the headstock. See this photo: <http://www.google.com/imgres?imgurl=http://www.practicalmachinist.com/vb/at tachments/f10/19126d1263689447-backgear-monarch-10-ee-3-hp-motor-back-gear.j pg&imgrefurl=http://www.practicalmachinist.com/vb/monarch-lathes/backgear-19 6511/&h=768&w=1024&sz=76&tbnid=v8fc691q6yRUYM:&tbnh=102&tbnw=136&prev=/searc h%3Fq%3Dmonarch%2B10ee%2Bback%2Bgear%26tbm%3Disch%26tbo%3Du&zoom=1&q=monarch +10ee+back+gear&usg=__Zttj_U5_FmZ9wlMHQYqmIwTmtFA=&docid=beP_ccGHfzktLM&hl=e n&sa=X&ei=0q1-UaaxBonc2AXar4HoBA&ved=0CD0Q9QEwAQ&dur=5072> Sorry for the run-on URL, but I could not find a shorter one. Steve Stallings ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
