On 7 March 2014 04:35, Gene Heskett <ghesk...@wdtv.com> wrote: >> I have minebea 17PM-M201-02 6wire HYbrid stepper motors driven by >> ULN2003a 2 wire drivers unipolar. > > This seems a bit puny to me, or your are geared down pretty slow, and with > the voltage limits imposed by those drivers, it is not going to be very > fast.
ULN2003 can go to 50V, though the current capability isn't huge. Unipolar is a bit old-school. I am fairly sure that any unipolar motor can be run bipolar, and eBay is awash with cheap multi-axis drives. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
