On Wed, 2008-02-13 at 17:37 +0000, [EMAIL PROTECTED] wrote: > > If you really want to use steppers and scales together, thats fine. It > > can be fun to explore new territory. EMC is the most flexible system > > out there, and probably the only one that would let you experiment with > > such a configuration. But you said you want to make parts, not > > experiment. In that case, choose either open loop steppers, > > or conventional closed loop servos, and start making chips. > > > > Regards, > > > > John Kasunich > > I've got class 5 ballscrews in the pipeline anyway so will think about it > after that, steppers are cheap enough to experiment with, if it fails to > perform as expected I'll chuck them and go servo... > > I was planning on servo anyway cos its what I know but someone who > apparently knew what they were talking about told me that steppers now != > steppers of 5 years ago and were just as good as servos... thinking about > it he has a financial interest in making that statement. > > cheers all.
I think Tormach has a fairly compelling argument for steppers here: http://www.tormach.com/document_library/TD30204_DesignAnalysis.pdf Starts on page seven, though I think the whole document is worth while. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
