You could also call it Megaman, or Iron Man or Metroid, or even those stupid things from Yu-Gi-Oh season 1. However you want to spin it, this is really fun to create and use.
First, you have to know how a Hornet works. The tanks use a back pressure system to fire. Don’t know what that is? Here’s a crude diagram.
Ok, so we need three things: a back pressure tank, a pump, and a release valve. Any subsequent tanks can be wired in series, so they all fill at the same rate and will be released at (roughly) the same time. This is exactly what the Hornet’s stock kill-all trigger does.
The grand diagram would look like this:
Plus or minus, depending on how many barrels you can fit.
So, here’s what you need:
Hornet
A cloth glove
One 3” PVC coupler
Some 1” thick foam
3/16” tees
One 3/16” elbow
One 3/16” barb to ¼” male thread
One air blow gun (can be found at WalMart or Ace, usually with car supplies)
About 5’ of 3/16” tubing
Zip ties
For fun:
12 Volt battery
A few LEDs
Spray paint
First, you have to get the coupler sized right. It needs to fit your wrist tight, but you still have to be able to slip it off your hand. For mine, I cut down 1” thick foam into a 4” by 3” rectangle, and cut the rectangle in half so it was only ½” thick.
And glued it onto the PVC coupler with zap-a-gap. You could probably use high strength super glue or even hot glue.
Now that you know the size you have to work with, prep the Hornet.
Cut the tubing to the Hornet barrels, leaving as much of the tubing attached to the barrels as possible. Cut the barrels apart from each other, so you’re left with something like this:
Using a screw driver, take off the barrel and gray shield, by prying it off. (thanks to Just Some Bob and deadshooter711 for the advise).
The barrel will pop off and leave you with just the tank.
Cut some CPVC and glue them to the tanks. 4 inches seems best. I put some hot glue in the base to set them and level them, then sealed around the crease with plumbers goop.
While those dry, move on to the pump. Seal of OP valve
And if it fits, glue the pump on the inside of the coupler. Dremel as necessary. If not, just glue it on the outside. Lucky me, I have small hands.
Once that is FIRMLY in place and whatever glue you used is dry, move on to the glove. Mark it at a comfortable position and drill holes to literally stitch it to the PVC.
(Also, that’s a battery case under the string, which I’m going to use to power LEDs). One last piece. Take the air gun and use some gas (yellow) tape to seal on the brass barb.
This is also where I put the momentary switch for the LEDs.
(hold please)
