Hi Everyone, I'm a newbie who just ordered a bunch of parts to get my feet wet and gain some experience with the build-your-own world. I got the smoothie board and a couple of the linear motion kits to play around with. I got the smoothie with the onboard driver to work with my NEMA 17 but I'm having issues with the external driver and the NEMA 23. I soldered on the pin header and wired everything for the common anode, open-drain configuration with the 5v coming off of one of the limit switch pins. I have metered everything for continuity and voltage but get an alarm LED on the driver as soon as I power everything up. I also set the config file to the open-drain mode with appended 'o'. When I power up just the 24v and leave smoothie off I get a green light on the driver and the stepper locks up tight. So far so good. But once I power up smoothie I lose the green light and the alarm comes on. I've reviewed this a dozen times and lost a bunch of hair so would really appreciate if anyone has any tips or clues. Thanks!