We are waiting on our shipments of the Nema 23 motors and all the belts and idler pulleys as well. Our next big purchase is going to be the controller card but are in the middle of decisions right now of which card to run on this machine. Does anyone out there have input on this matter? I am being steered towards the dsp controller from lightobject but was initially going for the full spectrum retinaengrave card. If someone could give any personal or hear say forums regarding this please don't hesitate to share guys. Please leave all criticism and concerns with this build because we are open to ideas or changes. Let us know what you think.