53 replies to this topic

[b00m13]

I think I understand your problem now.
I ran into this too, but got over it by simply sanding down the edge of Piece B, until it allowed piece A's "tube" to fit.

[six-five-two]

Awwww right. Thanks! And did you draw that in MS Paint or what?!

EDIT: Dammit, I just finished sanding the crap out of both the insides of piece B and making that small hole for the piece A connecter to go in... got a small cut on my hand from the file scraping my finger... oww. Err another one of my questions. I am guessing you keep that capri-sun straw in the gun and never remove it right? Well, where is the air tank for this gun anyway?

Edited by six-five-two, 03 September 2007 - 12:50 AM.

[b00m13]

Yes, I only ever use MS Paint since it's simple and easy.
The capri sun straw is held in place with Krazy glue. When everything is ready, and all pieces fit, epoxy is applied last. The straw will help prevent the epoxy from sealing the holes that allow air to travel between piece A and B.
Piece C is the air bladder, it and piece "AB" will hold the air, until the button on piece AB is pressed. Which will release a small amount of air, and force the rubber stopper inside of piece C to reverse, opening the forward tube inside of it... which will shoot out a burst of air (the air will be visible, similar to the firing of a modded Titan).

If you want pictures to help you better understand how a Hornet's internals work, go here:

My guide on "How a Hornet works"

[six-five-two]

I get it now. Going to assemble everything tommorow hopefully. Thanks again for your help.

Announcement: To anyone else making this... if you don't have a Capri-Sun straw (if I remember, Capri-Sun made some damn good juice, Hawaiian Punch totally kicks ass though) then take apart a pen and use the ink tube. It fits pretty good. Be sure that the pen is dead or almost empty, or else you may cut right into the ink. Most pens have nothing at the top for 2cm so if you cut a tad bit off you should be fine.

b00m13, err... could you tell me how exactly piece A works? You push the top, down, the spring pushes down... but how does that shoot air through?

Edited by six-five-two, 03 September 2007 - 12:01 PM.

[six-five-two]

Sorry to double post... but the post above me has been updated.

[b00m13]

Piece A is an air chamber itself. Inside of piece A, there's a rubber stopper which prevents air from escaping, when the button is pushed (the + button), the seal is opened up, and air will rush out around the button. The reason it's shaped like a +, is because it'll allow easier air travel out of the little air chamber.

[Forsaken angel24]

Boom13, That thing looks awesome. Maybe the next gun blade can have an umbrella gun integrated into it. That would be the end all of gun blades.

I must say though that the video was terrible. You were acting like you had some serious issues with stage fright.

[six-five-two]

It wasn't terrible! He missed the target, hit the blanket, which shook the box, causing the nitefinder target on the box to fall. Now that is luck .

[six-five-two]

Hopefully this will make b00m13 happy:



EDIT: I sealed most of the air leaks, but you know where the trigger thing is? When I pump up the gun under water all the air is leaking out through the trigger top piece. How do I fix this? I haven't glued on the pin in either...

EDIT2: I think it was because there was a small hole at the top of the "trigger" (the + shaped thing). I glued the pin into it and now that should fix the air problems. Also, this won't be pumped from the handle, I am planning to make this... shotgun style!

Edited by six-five-two, 27 September 2007 - 12:36 AM.

[b00m13]

Wow, good job man!

At that stage, it's possible to have it integrated into another gun if you wish.
Since you're making it a shotgun style pump, you should connect the pump to the other connector tube under the trigger (so the pump would be in the front, not the rear).

I had that problem with the leaky air coming from the top of the trigger (around the +), it might be because of a bad rubber stopper, or something. I ended up cutting it open to find out what's the problem, but I couldn't find it. When I used the other trigger button on the other side of the Hornet, it didn't have a leaky air problem, so that one was put into my Gunblade.

[CaptainSlug]

If you don't want to have to use the valves from the gun any push-button valve can be used. All you need is a valve to dump the back pressure out of the tubing that leads to the hornet blast chamber.

Granted of course that valves for that purpose cost anywhere from $4 to $15. But buying a valve instead will allow you to put the trigger anywhere you want it, even far away from the blast chamber.

Edited by CaptainSlug, 27 September 2007 - 10:35 AM.

[six-five-two]

The trigger spot is fine with me. Sealed up everything, no air leaks... 40'. Damn, I was expecting a bit more range. Pump was plugged and 4 pumps.

Gunblade project: Half failure

However, I will try experimenting with barrels, maybe I can get a bit more range. Right now I am just using 3" of PETG for the barrel. Anyways, I mine as well just finish this gun so I am purchasing some wood tommorow to make a shell.

b00m13, why didn't you make this out of a secret pocket blaster thing? That and the hornet have almost identical internals.

Edited by six-five-two, 28 September 2007 - 12:13 AM.

[six-five-two]

Well to make a bigger air tank, I was planning to well.. rip off all the glue on the blocker thing and use remains of the vinyl tubing to make the chamber a bit bigger. Here is a crude design:
http://img259.images...91sm2allnd8.jpg
Is that enough for better range? I am also going to.. rip out the pump (wasting about $1-$2 of glue in the process, I used quite a bit for that part) and replace it with a $2 pump at my local dollar store (Daiso, pro asian dollar store). So basically, I am planning to extend the airtank and use a bigger pump for 1 pump action.

[b00m13]

Don't do it 652.
The air inside the bladder is the only air that will propel the dart. Adding an air tank anywhere else wont effect the amount of air pushing the dart. If you added the tank where you drew, and press the + button, then the air inside the tank will just escape around the button. To try and increase your range, a better solution will be experimenting with different types of barrels.

[six-five-two]

Huh? How exactly will adding an extension air tank make the gun not work? I am quite confused. And why would air escape around the + button? Last time I had that problem it was leaking through the top, of which I just sealed it with hot glue.

[b00m13]

The only air that will propel the dart is located inside the bladder. Air anywhere else in the system will be release though another exit (around the + button). Once the + button is pressed, the rubber stopper inside the bladder will reverse and close off the connection between the bladder and + button air chamber.
If you add an extension air tank where you drew, the air inside the tank will just escape the same way the air inside + button air chamber would.

[blister]

b00m13, on Sep 28 2007, 09:45 PM, said:

snip

That's definitely true, but you can extend the airtank by drilling directly into the tank. I have done so on an SSPB, and gotten great results.

Not mine, but:

[six-five-two]

Then wouldn't making the vinyl tubing from the pump to the + button be better? I mean, I did cut down quite a bit of vinyl tubing, if I glued some more on wouldn't that work a bit better?

[blister]

six-five-two, on Sep 28 2007, 10:33 PM, said:

Then wouldn't making the vinyl tubing from the pump to the + button be better? I mean, I did cut down quite a bit of vinyl tubing, if I glued some more on wouldn't that work a bit better?

No, because the only air that is being used to fire, is the air inside of the tank. Any other air outside of that, whether in a separate airtank or vinyl, will not affect the dart. It may even hinder its performance. That's why you need to extend the airtank directly from the tank.

[six-five-two]

b00m13, didn't really understand... again. But I tried it anyways and what you said was going to happen, happened. You were right. Now I am trying to extend the air tank another way...

EDIT: Air tank has been extended, but new air pump produces too much air, could blow up the gun. Using hornet pump again...

Edited by six-five-two, 29 September 2007 - 12:53 PM.

[six-five-two]

Sorry to double post, just want to make sure b00m13 reads this.

Well I am planning to make a way bigger airtank (1/2") so it can work with my big ass pump. So hopefully my gunblade can achieve ranges of 80'+. The think is, will this work? and also, will this blow up my trigger system due to a shit ton of air going threw it? I am planning to make the airtank between the pump and the trigger system.

[CaptainSlug]

The only factor that can cause a part to fail is pressure. Volume doesn't have any affect. On boom13's drawing you need to increase the volume of the blue arrow, not the volume of the red arrow. But that would be very difficult to accomplish without ruining it.

I would recommend considering a different kind of trigger valve, replace the hornet blast chamber with one from a Big Salvo, or just be content with what you have now.
You have discovered why people don't tend to bother modifying hornets. Their performance is pretty bad no matter what you do.

[six-five-two]

Well I can't get a Big Salvo and strip it apart, so I'll just use what I have now.

[b00m13]

Yeah, I would HIGHLY recommend you not to connect an air tank into the Hornet's bladder. If you want more power, I'd suggest using your Titan's internals. You'd have to understand, I didn't choose the Hornet's bladder for it's performance (though it's not bad for such a small and simple piece), I chose to use it because it fit the size and shape required for my Gunblade.