I finished laying out the first revision of the PCB for ICBM. In addition to what is shown in the video I decided to add rotary encoder as a second control to change PWM duty cycle. RUN/STOP and BREAK functions will have their dedicated hardware buttons as well. The MOSFETs are mounted on a separate daughter board, this way I can have drivers for different power requirements. The first one I routed accepts DPAK-packaged transistors. The Eagle files plus pdf schematics for both boards are on github. Enjoy!