I also was disappointed with my STB5100 card, I tried following the tips of this topic but I was all messed up, I do not understand programming, I used my machine to do the pc with autoleveller and mach3 through the parallel port and XP,
now using windows10 and usb card did not work, please help me with a macro, that can work, until I got the probe down but it does not save anything on the mach3 and when it goes to cut the pcb it's like there is no autoleveller. any point on the board shows the same value as Z