sorry for delay, when i press pageup and page down nothing happening , idid set up my key board direction of axiss for z axis is A for UP and D for DOWN its working axis go up and down by A AND d my gcode is GO Z1.0000 and on mach3 page XYZ4 ALL +0.00000 WEN I PUT gcode the z go down , and when it start engraving it slowly engraving up that all thanks fro you help,