rusty

First a history lesson: First Try
My first attempt was an Effeminate failure being heavy, unwieldy, and having extremely inconsistent range. I fixed the first two problems:


The air tank, yellow piece, and green piece all came from an old "paint ball" gun. The gun basically shot water balloons full of paint. The green piece is from the original trigger and is glued onto the firefly trigger so that it releases the air when the barrel aligns with the plunger tube. The plunger is glued directly to the old "barrel" which was basically a round hole where the paint balloons sat. Ranges(14 pumps):
Stefan Streamline
43' 40' 38'
34' 4" 37' 10" 48'
37' 5" 37' 34' 5"
31' 36' 7" 34' 2"
31' 4" 34' 7" 32'
25' 9" 33' 10" 36'
25' 31' 25'
I should add that one of the reasons the streamline ranges are all over the place is the way the darts traveled. The 48' dart was the only one that went straight, the rest spun or curved.

I'm thinking the main thing that needs to be improved is the barrels, and barrel replacements for fireflys have been done before. Also, a better seal between the turret and plunger tube would help. If anyone is interested I'll be selling this along with the rest of my guns.

I should add that I'm selling it as is, and am only recommending modifications to whoever buys it.

Whenever I post a sale thread usually the first two or three posts is some idiots asking if I have any AT2k turrets for sale. My first reaction is usually "Goddamnit, if I had turrets for sale I would say I had them for sale." Then I realized that if I could make AT2k turrets I could probably sell them at a profit. The only special thing about the turrets is this piece:

That little knobbed cylinder is what lets the turret ratchet. So I found a highly advanced substitute that most of you are probably going to have to order online:

Beads

Next I designed a template to cut out of 3/8 polycarbonate.

(Note: I didn't actually bother following the whole template with the prototype)
After you have cutout three templates 1 plate is drilled straight through to the OD of your barrel, 2 plates have a small diameter whole drilled straight through, and one of those plates has the whole bored out to a depth that your barrels will rest comfortably inside.
Next, a small screw, and spring is placed through the middle whole, and a nut is placed on the end:

and you assemble the rest like so:


Right now all I have is this proof of concept. I had some trouble drilling the holes without a drill press, and something needs to be placed inbetween the two plates to form a better seal. My second version will be cleaner looking, and instead of using 1 sheet of 3/8 I plan on using multiple sheets of a thinner polycarbonate. I feel that this will make it easier to build, and lead to a better seal.

The main probloem with the Big Salvo is that new barrels make the gun really long, and unwieldy especially if you use brass. I decided to move the internals farther back inside the case so that most of the barrels were inside the case.



In order to fit the air chambers farther back in the gun I had to dremel some big holes but, eventually i'll cover those with something.



No ranges yet because the o-ring on the trigger shrunk, and i have to fix it.

REQUIRED READING: Thirst's Semi Auto 2k

Previously I tried to integrate a semi-auto 2k into a maverik for true a true semi automatic weapon with awesome range. That proved way to unwieldy with the heavy rf20 bladder glued to the top. So I decided to try to integrate the semi auto 2k into a firefly.





Once I get everything fitting nice and tight I'll epoxy all the connections and get some ranges.

I used an sm3k pump shaft, connected to a rf20 bladder, connected to a at2k tank. I then epoxied a piece of 1/2 pvc over the tank, which then nested snuggly into the black firefly plunger shaft.

Questions? Comments? Shennanigans?

A long time ago in a land far far away, a friend of mine bought a 14' trampoline at BJ's. After one new england winter, you could snap the metal legs off by hand. In the end I walked away with a bag of large trampoline springs. I finally got around to building something with them. Here's is my first prototype:



This is a parts shot, with the plunger, the plunger tube, and the spring layed out for size comparisons.



The spring hooks to the bolt in the plunger tube like above.



The plunger assembly. The plunger assembly is a turbuckle with two washers on one end. Inbetween the washers is some squashed vinyle tubing which creates the seal with the plunger tube. The other end of the turnbuckle will eventually have a chain on it, for cocking the gun.

Eventually, I'll add a coupler at one end of the plunger tube to attach different barrels, and also design a firing mechanism.

Questions, comments, suggestions?