I've looked around online and I've seen two different types of nerf claymore/landmines. They either required a flywheel system or were spring powered and required a trip wire. I've created one that is less advanced (and quieter) than a flywheel, yet more advanced than some obvious trip wire.
Here's what I used to build it:
Pieces used to make it work:
Stomp Rocket Air Bladder
1 Inch PVC (Barrel)
Pieces used for extra features:
Suction Cup Dart Head
Green foam for protection
I ran into a Stomp Rocket air bladder at a friend's house last weekend and turned it into a little "landmine". It is pretty simple, load a dart into the chamber and hit the yellow bladder. I prefer to steady it with one hand and whack the yellow air bladder with the other. It can be used indoors and outdoors. It works best, however, on the floor/ground because of the angled barrel.
The angled PVC barrel ensures that darts hit around the thigh area on an adult. If the barrel were flat, darts would be hitting ankles. The side of the pipe that connects back to the barrel was shaved down by my dremel unevenly. This makes for an angled barrel because only one half of that side is in contact wit the bladder. The barrel was hot glued and then secured in place with JB Weld.
A suction cup dart head was hot glued underneath the PVC and air bladder to absorb some of the shock and protect the weld that holds the barrel in place.
My friends and I usually play in dimmed lights indoors, so I added a green flashlight I had lying around. It shines in the same direction as the barrel and pretty much goes where the darts go.
Have not been outside for a range test yet, but darts seem to go about 35-40 ft depending on how hard I hit, which is perfect for the type of indoor nerf I usual play.
The only thing I'd want to change if I did this again is to make it more of a buckshot, not just one dart.
Edited by tspo, 11 April 2015 - 08:16 PM.