World Web shooter shop class

[White_widow]

I'm still trying to figure that out. Assuming the gear was part of a pneumatic pump, how would it pump the air into the cartridge? It's not like either of Jim Carson's ideas where it would make sense:

At least in these three designs one can clearly see a line of fluid coming from a pnuematic pump. The gears are used to reduce speed, but increase power. I still think that the device is pneumatic, but I'm starting to think that there is just so much fluid in the cartridge that to escape, it has to push off against itself. The atoms are so close together that it acts as a giant compressed spring. I'm wondering if the gears are for opening the nozzle or operating the two l.e.d. gagues on the shooter. It might even make sense to say that it's how to strand is spun so fast. The gears might be used to spin the front of the shooter.

Just throwing out the theories.

 

[Spectacular23]

I'm still trying to figure that out. Assuming the gear was part of a pneumatic pump, how would it pump the air into the cartridge? It's not like either of Jim Carson's ideas where it would make sense:

At least in these three designs one can clearly see a line of fluid coming from a pnuematic pump. The gears are used to reduce speed, but increase power. I still think that the device is pneumatic, but I'm starting to think that there is just so much fluid in the cartridge that to escape, it has to push off against itself. The atoms are so close together that it acts as a giant compressed spring. I'm wondering if the gears are for opening the nozzle or operating the two l.e.d. gagues on the shooter. It might even make sense to say that it's how to strand is spun so fast. The gears might be used to spin the front of the shooter.

Just throwing out the theories.

Was you able to read some of parker's notes from the new film in the Viral pics? I'm in Chemistry now and i only know but so much but he talking about the reaction of atoms and how a bonding process will work. But what I think if i may offer my theory. The puff of gas is coming from the gears and maybe there's a small pump somewhere inside the shooter. Is there such thing as a pneumatic gear? What if that round part of the shooter where the radar looking screen is, Is the Pneumatic pump which pressurized the fluid and force it out the nozzle and that's maybe and the release of gas is to keep the shooter from maybe buckling under the pressure? Idk.

 

[White_widow]

I was able to read the notes (well some of them) and there were some interesting pieces. For example, there was a few graphs on trajectory, one graph that discussed the fluid continuum, a chemistry equation that indicated hydrogen peroxide, and an interesting theory based on a type of spontaneous reaction that created linear strands of molecules. The notebook also suggests that there will be a solenoid valve as there is a magnet in the shooter design.

Now as for a pneumatic gear, that doesn't make alot of sense. A pnematic pump applies pressure via a piston. While it would be possible that the piston could be pushed by gears, I fail to see how that would work in a scenerio where a cartridge isn't locked in.

 

[spidey44]

If I'm understanding correctly it's a pneumatic pump that uses a piston to force air into the cartridge which, forces the fluid out.

 

[White_widow]

I thought so too at first, but it requires direct pressure. If the gears are for a pnuematic pump, then why isn't there a pressure tube in the design?

Or even in the prototype:

I suppose it could be possible, but I'm really having difficulty seeing it. I guess that their design will hinge on cartridge design. If the cartridge has two openings in the front, One for the pnuematic pump and the other for fluid outlet (there are valves made for both functions.) Then it could work.

I'm going to stick to my theory that the red circle is to indicate his fluid levels, the blue bars are for battery function, the gears are for spinning the nozzle, and there is a solenoid somewhere in there.

It would be better to have the pressure in the cartridge though. In silly string, the propellent in the can actually created many of silly string's properties.

 

[White_widow]

Wow, I spammed this place with pictures. Sorry about that. Anyway, I have all but one drill bit left for my web shooting device. Since I'm having so much trouble with it, I figured I'd let you guys know the design. Hopefully one of you guys have the tools that I don't (But maybe a dremel might work...)

Anyway, the cartridge design is based on a potato gun/ t-shirt cannon. The cartridges can be big, small, or whatever the parker's preference. For a reference on how to do this:

Build Process

High Pressure Air Chamber


Make no mistake, this is the MOST DANGEROUS PART OF YOUR GUN (to you). Take your time, and make sure that EVERYTHING seems 100% right, if something seems "off" scrap it and build another one. The parts are cheap, your arms, legs, and everything in-between are not. Make sure you read through (and understand) this entire section BEFORE you start.
Now, before we start. Forget everything you were taught in 2nd grade about gluing. Gluing these parts is going to get messy, put down some news paper or drop cloths before you start. The general process of gluing PVC is such: Primer both components (ex. Outside diam of pipe, inside diam of fitting), apply PVC glue to both components (on top of primer), Insert FULLY and give 1/4 twist & hold for 30 seconds. Ok, read this next sentence like four or five times, it will save you headaches down the line:
USE TONS OF PRIMER, and 2x TONS of GLUE. (Seriously glob that glue on there, both sides. You want to make sure you have a good seal)
Start by using your hacksaw to cut a 10" length of 3" [COLOR=white !important][COLOR=white !important]PVC [COLOR=white !important]Pipe[/COLOR][/COLOR][/COLOR], you may need to use a utility knife to clean the edges of any stray PVC. Primer & glue the 3" end cap on one side, and the 3" coupler on the other.

After a few minutes, Primer & Glue the 3" x 2" (non threaded) bushing into the 3" Coupler. Once give it a few minutes to cure.
As PVC is unforgiving when it explodes, it is VERY IMPORTANT that we don't over pressurize our air chamber, we can accomplish this by using a a safety valve. The 115 PSI Safety valve will open once the internal pressure hits 115PSI allowing excess pressure to escape. This ensures that the air chamber doesn't become over pressurized and explode. Do not skip this part!!!

The Schrader valve is used to charge our air chamber with either an air compressor or a standard bike pump. Even though later we will discuss charging it via CO2, it is nice to have a secondary means. As you can see below, I chose to mount my Safety release valve on the rear of chamber, and the Schrader valve on the side. I would recommend mounting both on the side, as it is structurally stronger mounting into double layers of PVC. (One layer creates a potential stress point) Just make sure that neither would be pointing at you should they "blow off" and that both are easily accessible.
Decide (and mark) your desired locations for both the Schrader & [COLOR=white !important][COLOR=white !important]Safety [COLOR=white !important]Valves[/COLOR][/COLOR][/COLOR]. Before you actually drill and mount these parts, You might want to take a couple practice drills into one end of your UNUSED left over 3" PVC pipe, you have plenty. Remember, practice makes perfect.

Using a 1/2" drill bit (in a drill press if possible) SLOWLY drill the hole for the Safety valve, ensuring you stay level while you drill. Switch to your 3/8" Drill bit and SLOWLY drill for the Schrader valve. Hand thread both in, then use a wrench slowly snug them down, making sure not to strip the self "tapped" PVC.

Drill a 3/8" hole directly in the middle of top of the 1" Plug & set aside. Using your hacksaw to cut a 3" length of 2" PVC Pipe, you may need to use a utility knife to clean the edges of any stray PVC. Primer/Glue the 2" x 1" Bushing (non threaded) into the bottom of the 2" Tee, then the 3"x2" PVC pipe into one side of the 2" Tee, the 1" plug into the 2" x 1" (non threaded) bushing, and finally the 2" x 1" (threaded) into the remaining side on the Tee.


Source:http://www.i-hacked.com/content/view/283/48

Modify the design based on your preferences. I suggest you use two end caps and forego the pressure relief valve as you will be making one.

Now you've made your cartridge, filled it with fluid, and pressurized it. What now? Make a trigger.

I recommend modifying this design in your own way. I found out a way to make a solenoid valve out of the shrader valve using it, but I haven't tested it.

http://www.instructables.com/id/Airgun-with-eXplosive-air-Release-Valve/

And that ladies and gents is how you not only make a cartridge that can hold fluid, but also the way to fire it. BE CAREFUL though. Pressure experiments have cut and bruised me. I don't want that to happen to you.

 

[spidey44]

My idea for the gears was that the trigger was a mechanical lever, and when it gets pushed down it pulls on a wire and the gears increase the force of the pull, which pulls back the piston, then as the gears turn they get to a side where the teeth are cut off which release the piston and forces air into the cartridge. basically it's like a trigger mechanism on a gun.

 

[White_widow]

I'm still a little skeptical because I can't see the piston. Back to that comment about a "Pnuematic gear". I don't think that's a thing, but if that circle in the middle has a small turbine that is constantly spinning and some how creates a vacuum, then the fluid would be drawn to it and become spun like a ball and chain kind of deal. The valve would open, and since the fluid is traveling in such a fast motion, the only place it could leave would be through the nozzle. In physics we talked about circular motion and how things travel when moving in a circular path. I suppose that if the gears can act that fast, then we might have something other than he pressurized it.

 

[spidey44]

I've had an idea like that, but I think pneumatic would be easier.

 

[Wadaltmon]

I'm going to base mine off of a simple aerosol can, though instead of the hand trigger, it will be a solenoid valve (by hand trigger I mean that little thing you push down on an aerosol can).

 

[Wadaltmon]

I'm assuming that the cartridge enters in on the right side of the shooter(that part his thumb is touching). I think it extends under the red disc and to the valve, with the spinneret inside. So it would be a flat, rounded oval.

 

[spidey44]

I'm also going with something like an aerosol, I haven't decided if I want a solenoid valve or a mechanical trigger to activate it.

 

[Wadaltmon]

White_widow: The only problem with a dremel is getting the correct bit. They are incredibly expensive (relatively). I wouldn't suggest getting one unless you absolutely need it for this project.

 

[White_widow]

I have a dremel already. I'm just debating whether it would be useful or not.

 

[Wadaltmon]

Someone mentioned something about photos of Parker's notes from the new movie... anyone have the link to those pictures?

 

[Symbiote-Man]

OK, so what about an electromagnet, that will pull open a the valve instead of my trigger. Hows that sound?

 

[White_widow]

Just use a neodymium magnet for that. I had the idea of using a schrader valve with a hole on the cap. The cap is screwed on and there is a magnet that rests on the plunger. It cannot go up or down. When you activate the magnetic field, it forces the magnet down. You need a very strong magnet, as it needs to fight the force of the upcoming stream of fluid. Or if you are so inclined, you could use a magnetic piston.

 

[spidey44]

Do you know where I can find an aerosol cap that can spray vertical.

 

[Wadaltmon]

Do you know where I can find an aerosol cap that can spray vertical.

Well, you can use a normal one, then plug up the regular hole and drill through the top.

 

[spidey44]

Oh that's right I have that written in my notes, thank you very much.
But how will I fire it if the opening is on the top?

 

[specspider]

Hi guys! I haven't visited this site on a very long time, most because i'm not really good at chemistry or science and probably the youngest one here. i still want to make web shooters and i think this forum is very interesting, anyway have anyone here seen this?

i don't really know if you can tell this web shooter as a toy or a more advanced device but it seems like it can shoot fluid pretty long! I'm not sure if it's a real thing

 

[specspider]

Oh and the cool thing is that the formula hardens to rope (if it's real ofcourse)

 

[specspider]

But i'm pretty sure that this device is fake which i find sad

 

[White_widow]

to spidey44 you'd have to glue a lever onto it. something like this:

111111111
111111111 < This is the cap
111111111
00001
000001 <--- this is a stick connected to the lever
00000111111111111111 <----this is the lever
000000000000000000001
000000000000000000001

You just push it back and since it is cinnected to the cap, it travels in the same direction. (0 is a place holder you're only meant to look at the ones.)

As for specspider: That design was for a contest. Cool toys we wish we had as a kid.
It was fake but it was still pretty cool. You can make a style like this, and have alot more fluid if you were to wear a backpack with fluid in it.

 

[specspider]

Oh sorry for that, i am very bad at this things