Comment by dale_glass
Comment by dale_glass 5 hours ago
Why use Linux for that though? Why not build the machine like a 3D printer, with a dedicated microcontroller that doesn't even run an OS and has completely predicable timing, and a separate non-RT Linux system for the GUI?
I feel like Klippers approach is fairly reasonable, let an non-RT system (that generally has better performance than your micro controller) calculate the movement but leave the actual commanding of the stepper motors to the micro controller.