On 8 May 2013 13:17, Matt Shaver <[email protected]> wrote: > > B. My best advise would be to see if you can adapt a standard NEMA 34 > (or 42) stepper motor to the mounting scheme on your machine. If so, > build a new system and eBay the old one. I recommend this course of > action due to my concern that eventually brush wear will kill the > existing motors, and you'll be back in this same position too soon.
I find it hard to support the idea of replacing servos with steppers, and replacing worn brushes shouldn't be especially difficult. As far as I have heard large steppers are rarely particularly satisfactory, as they tend to be rather sluggish. For a full motor and drive replacement I would be tempted to look at the DMM-tech sets: http://www.dmm-tech.com/Dyn3-H.html Should be LinuxCNC compatible (the other drives they have aren't). That motor and drive might be a good start for motorising the Z.The fact that they are mains-input devices is helpful as the existing PSU on that machine seems less than huge at 800W. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
