Considering the Hassle with present control system like Mach3.. I am shifting toward SD card based system with custom control.. Also looking for to control the rotation wheel with Servo. I think we will get industrial stitch speed on this. For all the guys who want to change in Zaxis values, please for time being you use Notepad to change manually or make a macro to post process your own value. I will definetly touch the SOFTWARE once i start working on hardware stuff...