Kirk Wallace wrote: > Jon, > > I was at the pico system website today and noticed something I thought > was not there before - a brushless DC servo amp. When will they be > available? I have Rutex amps on my other lathe, but they need Windows > for tuning. I had two of them at the CNC Workshop. One was running the X axis on the minimill I had there. I have made some improvements since then, and have had a batch of new boards fabricated. I still have to order parts and program the pick and place machine to build them. If you actually need some, I could probably whip a few up in short order, otherwise later this month sounds good. 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.
Jon ------------------------------------------------------------------------- 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
