Mini (working) Potato cannon

prusaprinters

<p>I made this custom mini "potato cannon" that shoots 6mm airsoft BB's. It's only 2 pieces and just requires an igniter from any BIC or Coleman style barbecue lighter. Just remove the ignitor and it should have one wire attached to it and an uncovered metal cap on the other end. Remove the thin copper wire from the gas tube of the same lighter and wrap one end of the wire around the metal cap on the ignitor, now put some tape to hold it on and you have your two wires, press the button to confirm you get a spark between the ends of the two wires (they have to be pretty close together). Now cut the wires about an inch or less long and put them through the two premade holes next to the shelf for the ignitor on the cannon and look in the barrel with a light to confirm they aren't touching and they spark when you press the button. If the ignitor is in place and working use some electrical tape to attach it to the cannon and you're done! <strong>To fire the cannon:</strong> place a 6mm airsoft BB in the barrel then squirt in your preferred fuel into the combustion chamber and quickly thread on the endcap. (i use about 0.3mL of isopropyl alcohol). now just aim and press the ignitor! <strong>To print:</strong> I did 4 walls and 20% infill with pla+, print the cannon standing up with the threads on the bed and the cap with the square handle pointing up, and the threads on the bed as well. <strong>Disclaimer:</strong> This is a toy but it uses flammable liquids and shoots a small projectile, please be careful and do not shoot at anyone or anything!</p>