Hello, 

I made a circuit for controlling a stepper motor and a 3d printer hotend with arduino. Also 2 rotary encoders and LCD screen. I would like if you can tell any problems with it...

I note that the components you see in the schematic like rotary encoders, rocker switch... are all wired with wires and not sitting on the pcb, so I made the footprint small...

Thanks in advance!