Toggle Latch Extruder for 1.75mm MakerGear Groove Mount

Some call it an over-center mechanism. The idea is to eliminate fasteners and springs while providing very fast access to change color or clean up after trying to extrude through a cold nozzle. It's also a little more open than the standard extruder, so it's easier to clean, or to just watch the gear turn.

I got rid of the springs because I always tightened the screws of the standard extruder until the springs were fully compressed. They were only acting as spacers. Also, I figured that even