The build of my potato cannon in video form.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Build List
3/4" t fitting x1
3/4" right angle x2
3/4" male to male short x5
3/4" male to male long x1
3/4" to 1/4" x1
3/4" ball valve
3/4" sprinkler valve
1/4" male to male x1
1/4" air compressor valve
What ever works
20lb propane has a 3/4" output once the valve is taken off
3/4" Sprinkler valve fired using 9 volt battery
All parts should be fine at 120 psi but I am not responsible for anything you do with this build list.