Cable Driven Blast Gate

thingiverse

This is a cable-driven blast gate for 4-inch sewer pipe, also known as DWV pipe. Only the flanges, cable guides, and label are 3D printed; the rest of the components are made from 1/2-inch plywood, though it's possible to print those as well. The system relies on go-kart throttle cable or bike brake cable to activate the gate. Five-millimeter bolts and nuts are used for hardware. Additional information about assembly and design can be found here: https://youtu.be/hxN0cn07w18