25mm Square Switch

This is a small button (pressure) switch. It only uses 6.37g of filament (.16c) and prints in 23 minutes. The internal switch is a 6x6x4.3mm tactile switch and a male 3.5mm cable. When soldering the cable, make sure you solder the two wires to two poles that are on the same side of the switch or else it won't function correctly. Total, this switch is about $2 to create. The cost can be cheaper if you have old 3.5mm cables laying around from old headphones.