On Fri, 2008-02-01 at 23:19 +0100, Anders Blix wrote: > I have a different idea. > > Why not tap in to the signal from the encoders themselves? If this is glass > scales with proper quadrature output it should be simple to read this > signals by a cheap card? There is nothing that says the quadrature signals > can't be read by both EMC and the DRO main unit. > > I plan to do this myself. I also bought a far eastern DRO with glass scales > and hope to be able to tap in to the signals being transmitted by the > scales. I have a Universal Stepper Card with quadrature inputs. > At the same time it is quite nice to have the DRO for manual milling. > > Does anyone have a good reason for not doing this? I should possibly use > optoisolators though, right? > > Anders
I don't see why you need the DRO unit. EMC makes for a good DRO as well as a motion controller and desert topping. See here: http://www.wallacecompany.com/machine_shop/EMC2/dro_vfd/ You can change between EMC and EMC/DRO by running the appropriate file. -- 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
