The FoxAlien R42 Rotary unit arrived yesterday! I had to employ the multimeter to lineup the pinouts between my Totem S and the R42. I also added a 4 pin connector and a 4 pole switch to make it easy to switch back & forth. It responded as expected when I plugged it in. My 3D printers are busy at the moment making “stilts” for the laser to elevate it. I plan to print a few different sets of various heights to accommodate cylindrical objects of different diameters.