The Mk2/4 controller is essentially a 4 axis version of the Mk2 controller, supporting the same high pulse rate and advanced software functions. The Mk1 controller for up to 4 axes, the Mk2 controller, using up to 9 axes and the Mk2/4 controller supporting up to 4 axes. There are currently three models available. They can serve as direct replacement or upgrade for many parallel port break-out boards. The controllers use the USB port, available on all modern computers and laptops.
The PlanetCNC series of USB CNC motion controllers link between a personal computer and motor drivers supporting step/direction control.
SHOULDTHE CONTROLLER OR CONTROLLER SOFTWARE PROVE DEFECTIVE, YOU ASSUME THECOST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.IN NO EVENT SHALL THE AUTHOR BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANYGENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USEOR INABILITY TO USE THE CONTROLLER OR CONTROLLER SOFTWARE. THE ENTIRE RISK AS TO THE QUALITY ANDPERFORMANCE OF THE CONTROLLER OR CONTROLLER SOFTWARE IS WITH YOU. THERE IS NO WARRANTY FOR THE CONTROLLER AND CONTROLLER SOFTWARE,EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIEDWARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ANDNONINFRINGEMENT OF THIRD PARTY RIGHTS. CONTROLLER AND CONTROLLER SOFTWARE ARE PROVIDED TO YOU "AS IS," WITHOUTWARRANTY.