Filament Sensor - MakerBot Endstop Runout Switch 1.75mm

I designed this filament sensor to use the MakerBot style endstop PCB because they're inexpensive, available, and often come with preterminated wiring. This is a two part design with a base that locates the PCB and is thick enough to clear the solder legs, and a top that guides the filament and protects the switch. The top has recesses to press fit standard bowden tubes if you need to guide the filament in or out of the switch. Drawn with DesignSpark Mechanical, RSDOC source is included.