Quote Originally Posted by MPH100 View Post
Have set decel quite high and under mdi stops quick it is the same under jog and program.
Hey are we talking about the spindle or Motor tuning here.? They should have no affect on each other.

Jog should not affect the spindle in anyway what so ever. Similiar in MDI only commands that should affect Spindle is M3/M4/M5 and S (speed).

Asked before can you post picks or show drawing of exactly how you connected because something is very wrong.

Also Either show how you have Mach3 setup or Zip up your XML file so can take look.