SMOKING JETPACK EXHAUST!

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I have found in the book "AURRA SING: Dawn of the Bounty Hunters" by Ryder Windham and Josh Ling some good pictures of boba fett and his concept costumes. In one picture they show Boba Fett all in white (page 38 ) with "smoke" shooting out of his jet pack. They made his jet pack with "...air canisters that could shoot out carbon dioxide..." (pg. 54). This made the Jet Pack quiet heavy. The book can be found in the Masterpiece Edition Aurra Sing 12" doll if interested.
 
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Jetpack Thrusters - Brainstorming

My goal is this:
thrusterexhaust0jh.gif

You'll notice that when you turn one of those cans of compressed air (used for cleaning electronics, etc) upside down, the air comes out cloudy, almost like a fire estinguisher. I'm trying to implement this into my jet pack, but I want to make it electronic so I can control it from my gauntlets.

The only problem is that I cant be obviously can't be sticking my fingers up in my jet pack to spray the nozzle, so how can I do this electronically, using something like a servo? There was some discussion on this some time ago, but I don't think anyone actually tried it out.

Let me know if you have any ideas :D
 
That could work and you could utilize the buttons on the gauntlets. You could also do something similar to the way the shutter cables work on film cameras.

Good luck!
 
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I have been thinking about the same thing, but from a different angle. I thought about using the can of compressed air, mounted in some type of housing that holds the nozzle open, pressurizing the spray line. Then install a solinoid vavle between the can nozzle and the discharge at the thruster. The solinoid could then be controlled open or closed from the gauntlets.

I will work on a little drawing, to help explain what I think I said. :facepalm But hopefully you get the jist.

Gator
 
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Thanks. I checked that thread out a while ago, but there isn't much there I could work with.

Here are some photos which I found a while ago, I forget where, of an original jet pack. It shows a Paasche compressed air can, the one used for airbrushes, inside one of the side tanks. So it looks like I'm on the right track ;)
origjp26lb.gif
origjp14wz.gif
origjp40ah.gif

origjp30gy.gif


Looks complicated!

I actually forgot until I looked at a can today during photography class that they have a squeeze trigger rather than a push one like on a spraypaint can, so that would would make it a bit easier to push using a servo. I'll post more details later.
 
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This design was originally developed for thrusters for a model of the BG Viper that I was building (which never got finished), but it should work just as well in this application.

Design Goals:
Inexpensive
Simple design (less things can go wrong)
Parts readily available (nothing exotic or requiring special machining)
Cheap easy to get ‘fuel’

First thing is the ‘fuel.’ Back when I started using an airbrush, I used the Badger’s canned air (liquid CO2). Anyone who has used this stuff knows what happen when the can is knocked over, you get one, a screwed up paint job and two, a plume of white gas. Problems, canned air can get a bit expensive, plus the cans don’t hold enough gas for more than a few extended bursts.


So the next link in the chain comes in from the paintball industry, paintball guns also use CO2 and they sell various size bottles that are cheap and are easy to refill. This resolved fuel problem, now what was needed was a delivery system. This would involve hoses valves and nozzles and look like it was going to cost and arm and a leg.


By chance I came across Harbor Freight, they sell cheap airbrushes, which I have heard is useless for painting (currently $4.99 ea.), but the kit has the necessary pieces, i.e. valves and hoses.
http://www.harborfreight.com/


Now to put it all together. The jet pack has plenty of room for the CO2 bottle (installed upside down), gas lines and battery. As for the electrical wiring harness. To activate the system consider a momentary switch on the left gauntlet with the wires running up through the flame thrower hoses with a plug (phone jack should work fine) where the hoses attach to the jumpsuit. Next, integrate the wires into the jet pack harness with a second plug at the jet pack-to-harness buckle. The wires then go down through the jet pack to the battery then on to the jet pack’s nozzles where air brush nozzles and the solenoids are installed. Pressing the switch activates the solenoids which opens the airbrush valves and CO2 goes shooting out.



Parts List
Paintball CO2 cylinder (probably need 24oz)
Tank Valve/regulator
2 Airbrushes (Harbor Freight)
1 in – 2 out gas manifold (Y fitting)

2 Electrically operated solenoids switches
Momentary switch (mounted on the gauntlet)
Plugs M&F (Phone Jack type)
Wire


Unfortunately this will add a few pounds to the jet pack, most of that in the CO2 bottle. Now I have to say that I have not yet built this system and have not done any searching for the solenoids switches, but the design is simple enough that it should work. The only problem I can see is that the gas lines may freeze up during extended use.

Well what do you think?

Alan
 
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What you need to do is find a nozzle that sprays vertically instead of horizontally (look on the cans of line marking paint), Install the compressed air can upside down in a gutter pipe or similar.
Fix the nozzle so it won't move (this will allow you to change the can and leave the nozzle in place) all you need to do then is use a solenoid or actuator to push the base of the can towards the nozzle.

Its much easier than trying to push a small nozzle or to use a flow valve.
 
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In regards to finding a vertical nozzle I would suggest trying a butane canister some of witch come with a series of small to large plastic adapters for the different lighters they might refill. These adapters should fit the end of your CO2 can and it will shoot straight up. I would not recommend using the butane for your would be jet pack propellant unless you want to set your but on fire :lol:
Hope this helps.
Cheers,
ST
 
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I have been thinking about this and there is a much more simple way to do it.

You need a C02 canister (small C02 fire extinguisher or the bottle from a paintball gun),
an electrical powered gas solenoid (http://www.aeroconsystems.com/Lake_Solenoid/index.htm) (or similar),
A switch,
some tubing
a battery and some wire.

Plumb the C02 bottle to the solenoid (the same sort of thing they use in NOS kits) and plumb the solenoid to the jet pack outlet (you could use a nozzle for different dispersal patterns).
Wire the battery to the switch and then to the solenoid.

Job done.

Your C02 will last a long time and can be cheaply filled at most gas suppliers (I mean gas not petrol, i'm English) or paintball arenas/suppliers.

Go play.
 
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Forced Trekker said:
:eek: This looks HEAVY!



origjp30gy.gif

Hey, you're right! I asked JB how heavy the original was, he said it felt like a lead weight pulling him backwards, in order to rest between shots he would lean his back against a wall to take the pressure off.

I'd still swop my MLC lightweight version for one anyday!
 
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JET PACK Special effects

I want to add some special effects to my Boba Fett jet pack and I am curious to know if anyone has done this and how they have done it. Some of the ideas I am looking for is adding smoke and sound. Any help would greatly be appreciated. Thanks.

Chris
TK4293
 
The Albino Fett had the ability to shoot smoke out of the exhaust ports but I have no idea how they did it.
 
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I think I'll try to look him up. Thanks for the tip. Does anyone else have any suggestions? Thanks.

Chris
TK4293
 
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