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Thank you for the replies.

Mactec54, the board that you suggested is one of the boards that I have tried, it's the one that lands me within roughly 500 RPM of the target speed. I have been able to...

Mactec54, thanks for your reply.

There is no way to configure my VFD to accept a 0-5v signal. The SmoothStepper is what outputs the digital PWM signal, which has to be converted to the 0-10v...

Hello everyone!

I have a 4x8' CNC router running Mach4 and I have been having a ton of trouble setting up automatic spindle speeds. I cut lots of materials and would like to control the spindle...