World Web shooter shop class

[White_widow]

common battery. I'm actually considering putting the batteries in the trigger itself. It will conserve space in the shooter.

 

[Wadaltmon]

Depending on the voltage of the battery and the resistance in my circuit, I can maybe adjust the speed of the actuator.
What voltage of battery do you plan to use? What about rechargeable or not?

 

[spidey44]

I'm thinking of making the pressurized cartridge out of a marker casing, will this hold up to about 50+ psi?

 

[White_widow]

To wadaltmon: That is a good idea. I'm still trying to figure our how the motor activates the valve though. I'm planning on using 3 volt circular batteries. Rechargable batteries aren't very effective. They lose their charge significantly over time.

Spidey44: Be safe. Pressure hurts if you mess up. I got a pretty nasty cut from my first cartridge prototype. I wouldn't use that if I were you.

 

[Wadaltmon]

I'm thinking of making the pressurized cartridge out of a marker casing, will this hold up to about 50+ psi?

You mean like a Crayola marker? Yeah, but you need a propellant for it and a way to re-pressurize it after you take out the ink...(assuming you do...)

 

[Wadaltmon]

To wadaltmon: That is a good idea. I'm still trying to figure our how the motor activates the valve though. I'm planning on using 3 volt circular batteries. Rechargable batteries aren't very effective. They lose their charge significantly over time.

Yes, I was going to point out that thing about the rechargable batteries. And 3 volt batteries? I haven't seen those a lot, I have seen only 1.5V, and some 4.5V that are circular, and then the normal 9V... could you post a picture.
And wow, you recognized the motor. It's going to be mounted slightly above the valve, with a small (probably plastic, modified aluminum or another sturdy material) prong, which when the motor spins, the prong will push the top, spring-loaded valve back, and causing the pressurized fluid to come out. I'll draw a diagram and upload it later.
EDIT: This page shows a bit about the formula, its uses, and the shooters themselves. http://en.wikipedia.org/wiki/Web-shooters#Artificial_Web-shooters
Though, yes, it is Wikipedia.

 

[White_widow]

Just make sure that the motor has high torque. I'm sure you already know that. As for the three volt batteries: http://www.amazon.com/Powertron-Lithium-Batteries-Size-CR2032/dp/B002B8YJTM

 

[Wadaltmon]

The torque differs, depending on the current and voltage in the circuit. I think right now it is going over 1500RPM, with a 9V.
Oh, so they're the button battery things... Okay... Cool idea with the spare ones! If you feel up to it, you can learn the Assembly language, then transfer a program to a microcontroller to light up LEDs to tell you the battery amount you have left, and when to switch over to the spares.

 

[White_widow]

That's true, but for now, making a basic functioning shooter is the plan. I just need a few parts to come in. (I'm just too lazy to drive and get them).

 

[Wadaltmon]

I have the parts, and can build my shooter from parts around the house.

 

[White_widow]

Cool. That's good that you can do it. I'm operating under the assumption that peter parker would make the web shooter after his first wrestling match.

 

[Wadaltmon]

Why would that make a difference, anyway?

 

[White_widow]

I'm off to accomplish two things. I'm trying to give fire men and police officers a valuable tool, and I'm going to inspire kids to believe that you can accomplish anything you set your mind to. Spiderman's web shooter, something of comic book legend, is a staple of childhood. Every kid wants it to be real. It's kind of like a lightsaber. If I can make this, and make it within the realm of possibility of the average teenager, I can inspire the dreams.

 

[Wadaltmon]

Even if the firemen do use it, who's to say that someone can't steal it? That's why I'm not going to give it to anyone unless I deem they seriously deserve it. I'm not saying police and firemen don't deserve it (because they most certainly do), there is just a chance someone can steal it easily from them.

 

[White_widow]

Who cares if someone steals it? In the end, what is the worst that a person could do with or without super powers?

Edit: Wow, there are like 6 people looking at this forum at once. This is becoming very popular.

 

[Wadaltmon]

They could modify the web fluid like an idiot, make it poisonous, shoot it into the water supply, and kill us all. LOL JK I see your point.
If someone steals it, though, they could use it to tie up people and steal their stuff like in ASM547.

 

[White_widow]

I would put komodo dragon poison extract in the water, before I would put webbing in there. I don't think that's a big problem. Criminals have guns, which are worse than the equivalent of hand cuffs. Think of the fire men who run into buildings that collapse. They could spray the ceiling and be safe. It would also hold the building together allowing more time for victims to escape.

It could be used for a trampoline for people tapped in building fires while they jump.

It could be used to stop speeding cars.

It could be used for self defense.

It could be a multitude of things, but in the end the uses out-weigh the problems.

 

[Wadaltmon]

Yeah, I thought of this... except a speeding car? I don't know about that one, unless you can totally replicate the PP formula...
Even so, I'm really interested, afterward, instead of making my primary "PVolt" model (what I'm calling my first design) I want to make a "PPressure" model, similar to yours. The only problem with me making it is a looooooot of electrolysis.

 

[White_widow]

Then why don't you use an easier propellant? I think your PVolt model has alot of potential. You should try to make it. If you manage to make it, then you sustain the theory that peter parker can make this stuff at his house.

 

[Wadaltmon]

Yeah, but then again much smaller.
I am going to construct the cuff probably tonight, tomorrow night, or the night after that.
I think I may just go out and buy a canister of helium for propellant. Good thing it can't bond with anything, otherwise we may have had a problem.
Yes, he could make this stuff at his house. Most definitely.
Also, your model, if you find a way to conceal the trigger and tubing, you could disguise it as a watch. Just an idea.

 

[White_widow]

I like the idea. What are you making the cuff out of? Helium is good. It's pretty cheap too. As for the concealment, all I'd need is a hoody or long sleeve shirt.

 

[Wadaltmon]

I like the idea. What are you making the cuff out of? Helium is good. It's pretty cheap too. As for the concealment, all I'd need is a hoody or long sleeve shirt.

I'm making the cuff out of an old eyeglasses case and some sheet metal.

 

[White_widow]

hmmm... That's really creative.

 

[Wadaltmon]

hmmm... That's really creative.

The only part I can't figure out is a strap-locking mechanism so it doesn't open by accident.

 

[White_widow]

You could always use a button with some fabric. It's primitive but it works. You could also use a magnet too, but that has a chance of getting undone.