On Mon, 2007-08-13 at 11:15 -0500, Jon Elson wrote: ... snip > to build them. If you actually need some, I could probably whip > a few up in short order, otherwise later this month sounds good.
My other lathe project (Zubal) is on hold until I get the HNC making parts. I was going to say "until it is done" but I suspect these EMC conversions are never "done". I hope to be making parts with the HNC in a few weeks. The more practical little fellow on my right shoulder is saying... "yeah right, make that a few months". > I ran the proto with a big (2 Hp Nema 42) API motor I got off > eBay, and it performed well in the sense that it drove the motor > without anything bad happening. The motor is apparently set up > for sinusoidal commutation, and my drives are designed for > trapezoidal commutation. So, the motor hummed and vibrated > quite badly at several hundred RPM, no surprise. I'd like to > try it with a large trapezoidal commutation motor, if you have > one in mind. It needs to have the commutation (Hall) sensors > either in the motor or encoder to work with my servo amps. The Zubal has Sanyo P5 1.5kw motors. I have a Pacific Sci R20 motor that weighs about twice the P5's. I have the specs on the Pac Sci, but I don't recall what they are right now. What size motor were you looking to test? > Jon Kirk Wallace ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
