Gen7 opto-endstop for dual-Extrusion of conductive material

This is a proof of concept for creating a fully 3d printed PCB using a dual extrusion setup with ABS for the board and a conductive material (such as wire glue, conductive paint, copper clay, etc..) for the traces. This would of course require a paste extruder for the conductive material.
I haven't tested this yet, but it should work. There are a few variables on the top of the scad file for customization (width of the traces, width of the pads, thickness of the conductive material and board t