Hi , ive had the pleasure of being a beta tester for centorid cnc testing there new acorn control board and software and i have to say its the best board and software ive ever used. I own a mini mill x2 heavy modded with linear rails, teknnics servos, renishaw probe and tool setter and other parts. Ive tryed the cnc4pc controlboard and csmio/ip-s control board running mach 3 and mach 4 and was unable to get the mill to run right, the mill original ran a gecko g540 and mach 3 for years before the upgrades. Once i installed the Acorn board and software i was up and running correctly in 1 day and have not look back sense. I have made a few youtube videos showing the mill running and setup videos on setting csr, rpi, probing and backlash using the software and hope it can help show the power of this board and software.
https://www.youtube.com/watch?v=rbCtE1yv4cE
https://www.youtube.com/watch?v=4nVc3MB9dsY
https://www.youtube.com/watch?v=ufgVcIZcqlM
https://www.youtube.com/watch?v=R33C3uJ6tm4
https://www.youtube.com/watch?v=0gS4pviFcVA