Web shooter shop class

[Symbiote-Man]

Well, as soon as I have the details figured out, sure! I'll think of something to tweak!

Just make sure you post your designs, and I'll work on it! And what is that "machine" you talked about, that seems important!

[Symbiote-Man]

Now, for my machine I have decided to use hot glue in a different way. The cartridge will be pressurized with helium, and heated with a heating element. Will the heat do anything to the helium?

[White_widow]

It will cause the gas to expand, increasing the pressure.

[White_widow]

Well, as everyone has brought it up, let's talk cartridges. These must be made out of metal or a chemically resistant plastic like polyethylene with a high tensile strength. PVC, while sufficiently strong isn't fully resistent to acetone. I will be making mine out of carbon steel or just regular steel. Aluminum is a good option if it is really thick, but most of us don't have the equipment or knowledge of proper welding techniques.

Now if you want to make rectangular cartridges, be aware that the reason noone makes them is that they have worse pressure limits. If you want to test the mathematic possibilities: http://www.gowelding.com/pv/square.pdf I'm not going to lie. I can barely comprehend the first three pages before getting bored. It is alot of math for square cartridges.

Finally, pressurizing the things.

1.) make the pressure based off of a chemical reaction. The elephant toothpaste is nice but you would need 60 to 80% hydrogen peroxide and it is near impossible unless you distill it.

2.) connect a co2 cartridge to it. There is a possibility of leaking in a tube.

3.)Compress it. It requires a piston or air compressor. Heck even a helium tank or CO2 will work but you need to cap it off.

4.) soldering, yeah right. Unless you and your iron can move faster than 100 to 300psi, I don't think so.

5.)Check valve- clunky but accomplishes the task.

6.) any other valve- risk losing or gaining too much pressure. Also there is a danger with being too close.

[Symbiote-Man]

I think I'll make something to shoot fishing wire with an adhesive, and work my way to a fully functioning web shooter from there. I think a spring will propel it and super glue covered plunger will make it stick. Then there will either be a chopping mechanism, or it will just stay like that.

[Symbiote-Man]

Never mind, swinging like that could kill me, plus, real web shooters are SO much more fun to make!

[spidey44]

for the spring idea, on the hot melt web shooter, to get it to shoot a reasonable distance(30+ feet) wouldn't it be kind of difficult to pull the spring back.

[spidey44]

For a valve why not one of those co2 valves for bikes.

[White_widow]

Sure, why not.

[Symbiote-Man]

30+ feet? No, I'm going for 4 or 5+ feet.

[Symbiote-Man]

But for a fully functioning web shooter, you need to hold a lot of web fluid, a way to change from string to net, and a quickly replaceable cartridge. For the cartridge we could use a click-down and release button. For changing from string to net you might just change cartridges, and for holding a lot of fluid, I have no clue.

[Symbiote-Man]

Acording to White Widow, a spinerette spinning at different speeds could give us a web and a net. You could have one button for the two fingers that would depend how hard you pressed it for the spinning speed.

[Symbiote-Man]

"The spring valve would have a button or lever that fights the force of the spring to align holes on the outside of the valve, and holes on the inside in a material located inside of the valve. I guess the only way for me to explain is to post pictures but that would take a while so I'll hold off on that step."
-White Widow

I think this spring valve will work nicely for the shooter.

[Symbiote-Man]

Now the only problem is to open the cartridge. I think you could have a cap on it that when it is loaded it is pushed off, and put under the valve.

[White_widow]

That's not a problem either. Just use a hollow needle like this.
1 1
1 1
1 1
1 1
1 1
1 1
1

[Symbiote-Man]

Nice!

[Symbiote-Man]

How could the needle be sharp enough?

[Symbiote-Man]

Where would I get carbon steel, btw. If everything goes well, I'll be making this soon.

[White_widow]

I'd check online. If you don't have welding skills, I wouldn't recommend it. You can buy regular steel at home depot and various carbon composite fibers in various locations.

As for the needle, it really depends on what kind of cartridges you're making. For me, I'm making a half cartridge, half valve. I need a welding set to make it work correctly, but I can use epoxy until I make too much pressure.

[White_widow]

Alright guys. I am going to school, probably starting a rigorous training schedule to get back into shape, and have a very physically demanding job while applying for scholarships. This project is simply taking too much time. I will be popping in alot less after this post. You guys are smart, you can figure this out. I've reached a point where all I need is the money to build these things (not to mention the time) but it only took me six months of research to get this far without any help from engineers or chemists. (though when I was starting, thebatsam helped a good deal.)Everything you need is on the first nineteen pages of the first forum. If you have any questions after going through that, just let me know by sending me a Pm. I'll pop in occasionally.

[Symbiote-Man]

Originally Posted by White_widow

Alright guys. I am going to school, probably starting a rigorous training schedule to get back into shape, and have a very physically demanding job while applying for scholarships. This project is simply taking too much time. I will be popping in alot less after this post. You guys are smart, you can figure this out. I've reached a point where all I need is the money to build these things (not to mention the time) but it only took me six months of research to get this far without any help from engineers or chemists. (though when I was starting, thebatsam helped a good deal.)Everything you need is on the first nineteen pages of the first forum. If you have any questions after going through that, just let me know by sending me a Pm. I'll pop in occasionally.

Nooooooooooooooooooooooooooooooooooooooooooooooooo oooooooooooooooooooooooooooooooooooooooooooooooooo oooooooooooooooooooooooooooooooooooooooooooooooooo oooooooooooooooooooooooooooooooooooooooooo!!!

(sniff) On a different note, I am working on a way to release C02 at the same time the web is released. Anyone got anything?

[spidey44]

You could release the co2 into the cartridge like this:
http://www.killermovies.com/forums/f47/t347614.html

[Symbiote-Man]

I think the best thing to do is release the C02 on the outside.

[Symbiote-Man]

Does anyone know where to get a spring valve? The ones I found online don't have a lever, just a button.

[spidey44]

I tried to look it up but didn't find anything but the only thing that I could think of was a schrader valve which can be found on bike inner tubes.