A lot of people have asked for a Step/dir to Analog board so people can run MACH3 and still use their Analog Amplifiers. Well i've finally made one.
Its Viper tune compatible and should have the features to do the job. It has a differential +- 10 volt differential analog output, current feedback input and enable output.
The loop time is much faster now and programmable up to 4000 samples /sec.

I am testing it on a AMC 80volt analog amp but I would like to have a few people test them on some larger amps on big mills.