I have Sherline Mill machine with three Stepper motors on it. Those stepper motors are Vexter PH268-21B. I am looking for 4 axis driver and software that I can run it. One axis extra for a rotary table. I look on eBay but not sure which one should I get. I notice the stepping motors on my Sherline Mill machine are 125 oz/in I am not sure if they are strong enough to use it on the Sherline Mill machine. Also, this stepper motor has 6 wires. I was thinking to get this https://www.ebay.com/itm/19304937297...wAAOSwdFZcigIQ but not sure if they are good. I was wondering if we should use a USB port or a Parallel port? I have an old computer and was thinking to use it with LinuxCNC. This computer does not have windows license on it. I thought I should get Ubunda on it which they are free. I see there are many different drivers like TB6000, TB6560, and DM556T. Not sure which is good. Are there any other CNC kits that I might have not heard?