Hi Guys I'm having problems hooking up my BL-UsbMach3 Bob (https://www.steppermotorcanada.ca/st...canada_035.htm) to my Huanyang VFD to run the spindle from Mach3. My Workbee CNC with a liquid cooled 2.2kv spindle came with a NVUM BoB but didn't work from day one and the company from China gave me the run around so I decided to go with a different BOB.