Here at CandCNC we specialize in top digital torch height controllers. We have (allinone) systems that come complete with DTHC, power supply, and stepper or servo motors.
We also specialize in direct connect to Hypertherm RS485 option. This allows you to control your Hypertherm 65,85,105, and 125 with the RS485 serial port option.
Our systems now have a EtherCut option. We connect to the PC using the network port instead of the parallel port, and are able to use newer OS on the PC's. I have in stock Win 7 PC's. I also preconfigure the PC's for what system you have purchased.
We will be glad to answer any questions you may have. Feel free to call or comment.....Thanks