Kenneth Lerman wrote: > I really think we need some pictures and/or details. > > Instead of using letters for a test case, could you try using short > lines? First plot a set of parallel lines about 5 cm long and 2 cm > apart, parallel to the X axis and centered on the Y axis. Then do the > same thing parallel to the Y axis and centered on the X axis. Another really useful test is to make a circle out of small linear segments. If there is some error happening on axis reversal, it will show up at the points where the movement reverses. Many step/direction drives have restrictions on when the direction signal can change relative to the last (or next) step pulse. If the required polarity of the step pulse gets reversed, it can make the cnc computer violate that requirement, and lose a step every reversal.
Jon ------------------------------------------------------------------------- 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
