Loading

Water Rocket (Bottle Rocket) Adapter With Fins

by kludgemonkey, published

Water Rocket (Bottle Rocket) Adapter With Fins by kludgemonkey Nov 23, 2011
6 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps

Contents

Use This Project

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

14133Views 1506Downloads

Summary

This is a derivative of my 2 Liter bottle to 1/4 NPT adapter with reasonably sturdy little fins. The adapter is designed to let you quickly turn an ordinary house hold pop (soda) bottle into a projectile by adding water and air pressure. the 1/4 NPT quick disconnect gives you a simple and easy way to add air pressure and also works as a launch mechanism when you release the collar.

Instructions

Please see the parent of this item for instructions, that way I can just make corrections there as I intend to make several derivatives.

All Apps

3D Print your file with 3D Hubs, the world’s largest online marketplace for 3D printing services.

App Info Launch App

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

This is the second round of these that I have printed, a couple notes, you are going to need some sort of rubber seal for the bottle side and teflon tape for the air hose end. I fired the first one off using only air and I ended up breaking a fin off. I feel this is due to printing with only 20% infill. After the fin broke air was able to escape though where it broke. So I decided to print 3 more with %100 infill and see where that takes me.

Just wanted to say my two boys, ages 7 and 8, have enjoyed this immensely. They charge them to 90 PSI with the air compressor and they fly pretty high.

What is the outer thread size for the quick release connector?
What is the nozzle inner diameter?

I'm having some problems with this one. I printed the one without fins fine but this one ends up without threads for the bottle. Slic3r made a complaint and tried to correct something.

Any tips for getting one to print correctly? :)

It looked like the stl hole for the quick release was the right size for a gift I got last year of a mentos+diet coke nozzle. It wasn't perfect but a few minutes with a file and a bit of teflon tape and it fits wit a water tight seal. I don't know how well it will work under pressure but I HOPE it will disengage easily... I'll find out this weekend.

Sweet, I hope it works. Please put up pics if it does. I have never actually done the mentos+diet coke experiment. If I have some spare time in the near future I'd like to fiddle around with it and design a dedicated printable nozzle. If anyone has experience with it and has suggestions I'd love to hear them.

Well it definitely popped off. The bottle went Plop! onto the floor and the Mentos holder went almost a foot straight back. And the coke+mentos was EVERYwhere.

It's a good thing they call that 'backyard' science. My boy (4 years old) thought it was awesome . I need a way to keep the mentos in there and build up a bit of pressure next time I think.

If the wife gets bored of poking fun at me for this one I'll try again :)

Awww man, that sucks, what failed? Was it the bottle side threads or the narrow side threads? I'm guessing by your description that it was the narrow side threads which probably weren't exactly the 1/4 NPT it was designed for. If so, can you tell me what the thread pattern you are trying to screw in there is? Maybe I can improve it for you.

I had an amazing time in high school one time doing something like this with a friend. We melted a smooth hole in some bottle caps and placed them over an aluminum tube we had connected to an air compressor. When we opened the valve (very fast blow-gun valve) it would presurise the bottle as it was coming off. Worked very well. We played around with more advanced stuff - a small clump of clay inside the bottle had an interesting effect. The tube kept the clay off the hole initially, so the bottle would still shoot off the tube and a bit of water would still shoot out to propel it upward. But then in the middle of the flight, while it was still partially pressurized, the clay would find the hole and plug it. The bottle would be in free flight for a bit while the clay was stuck in the hole, but eventually the pressure would shoot the clay out, and the remaining water and air would propel the bottle again. We had succeeded in literally making a two stage water bottle rocket with just a tube, compressor, and some clay! It was lots and lots of fun - the bottle would shoot up about 30 feet before stopping, then it would tumble in the air and eventually shoot off in a random direction. It was surprisingly repeatable, and we were able to vary the amount of clay to alter the timing. We eventually got it to the point where the bottle would come almost all the way back to the ground before the secondary "stage" fired. So much fun! It might be possible to 3D print a more reliable staging mechanism, though I'm not sure what that would look like!

There are a variety of staging mechanisms that have already been developed - see http://www.aircommandrockets.com/index.htmhttp://www.aircommandrockets.c... for some examples, but there are undoubtedly ways that purpose-built, 3-D printed items could enhance their effectiveness.

Top