I found a nice enclosure, for my Arduino-stack.
Its a 80x80x70mm rugged and watersealed (o-ring) box with four screws to keep it together.
Sadly i had to make an opening for the USB-connector.
I didn’t want it to be flashable while in the box, but there is a chance of using MIDI via USB too and otherwise the arduino wouldn’t fit.
I had to clip all pins of all shields to make them fit into the box.
Next to the USB is the obvious powerplug.
On the other side, there’s the MIDI-IN plug and the four Motor-OUTs.