[Johan von Konow] has come up with an inspired solution, 3D printing an Arduboy case with channels ready-made for all the wires. The effect with his 3DPCBoy is of a PCB without the PCB, and allows ...

Small “bridges” need to be manually added to hold the stencil together ... a 2D DXF from your PCB design software, converting it into three dimensions, and printing it out.