This is a case for the Duet 3d printer controller. BOM 15mm nylon spacers (This allows space under the PCB for wires) 4x M3 screws to secure PCB 2 screws to secure the case 100 x 123 x 3mm acrylic sheet Using acrylic lowers the print time and gives a really nice finish. I just glued it to the inside of the case (see pics) 20% infill printed in PLA. I used the screw terminals on the PCB so made the case slightly bigger than the board itself.