On Thu, 2009-12-10 at 18:25 -0500, Dave wrote: ... snip > Even a low cost bipolar setup should run circles around an old unipolar > setup. If those were servos, I'd try to save them but those stepper > motors can be replaced with decent Nema 34 bipolars for about $70 each > or less. > > You are already going to put a bunch of time into this conversion, why > make it more difficult than it needs to be? > > Dave > > Kirk Wallace wrote: > > On Thu, 2009-12-10 at 22:27 +0000, Andy Pugh wrote: > > > >> 2009/12/10 Hubert Bahr <[email protected]>: > >> > >> > >>> Does anybody else have an > >>> explanation for 4 phases with only 4 wires? > >>> > >> It might be 2 phase bipolar, but labelled oddly. > >> ie imagine that P1-P4 drive a motor wire each, at +40V if the pin is > >> high and 0V if the pin is low. ... snip
I think it depends on what value Martin places on his time, money and patience. If he reuses his power supply, drivers, motors and I/O card, and having a parallel port buffer card in hand, he can have EMC2 running in a short time and with very little more money, if any. Martin will need to get into the guts of EMC2 and HAL more than most, which may be a deal breaker. Making motor mounts, screw couplers, re-wiring, learning about the new parts, and the $500 or more, is a significant issue. It just depends. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
