I am thinking about trying to upgrade some old routers from steppers to servos. I am seeking advice on a good and inexpensive BLDC motor to use.
The steppers on them now are NEMA 34 with a 3/8" shaft, rated at 7amp and 450 oz-in. and are half stepping from an old Anaheim Automation unipolar bi-level drive. We are tired of lost and missed steps not to mention outright stalls ruining pieces. I was thinking of picking up some AMC servo drives off ebay (BE12A6 drives seem to be cheep and plentiful there). And run about a 400W motor of some sort. I think I would like to use a Mesa 5i25 for controlling it all (is that a good choice?). What daughter card(s) for the 5i25 would be best? (I will need 4 axes XYZW) What would be a good motor for this and where to buy them? (Max RPM will be less than 1500 without changing gearing, with 1000 being more realistic.) How high of a resolution encoder will I need? Short of cobbling together all this stuff for a closed loop system, I am also considering buying a 4 axis servo system from DMM-Tech (costs about $1700) and running Linuxcnc open loop. (probably still use the 5i25 for hardware step generation). Todd Zuercher P. Graham Dunn Inc. <http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -- P. Graham Dunn Phone: 330-828-2105 E-mail: to...@pgrahamdunn.com 630 Henry St. Dalton, OH 44618 www.pgrahamdunn.com ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
