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Single Use Model Rocket -- Mark II

by SCaruthers, published

Single Use Model Rocket -- Mark II by SCaruthers May 22, 2013
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Summary

This is an updated remix of the Single Use Model Rocket (see http://www.thingiverse.com/thing:87495 ). This version has a longer, solid nose to shift the center of gravity forward, and slightly longer fins, to pull the center of pressure backwards.

Prints as a single intact object.

Instructions

Printed with
Infill 100% (important! to maximize weight in nose)
Speed: 40mm/s
Shells: 3
Layer Height: 0.27

Print time = 1:49
Weight (empty) = 23g
Weight (w/ engine) = 48g

With the center of gravity (CG) moved forward, this version should have better aerodynamics than version 1.

This is designed to house an Estes 'C' standard sized model rocket engine.
See ( http://www.thingiverse.com/thing:88520 ) to adapt to an 'A' sized mini engine.

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I launched off 10 of these this weekend when we were camping... My phone battery was dead, so I am waiting for my friend to send me the pics he took of them..

They flew great on C6-0 and C6-5
C6-0 makes it sound like a bottle rocket!
We launched a bunch at a 45 degree angle and everyone loved the trail of sparks at night...
I printed a few with glow in the dark plastic, and you could see the glowing small pieces after it "blew"

Good luck ever finding it! (or parts of it)

Great story! Thanks for sharing it. I'd love to see some of those photos on this web page once your friend sends them to you. As for not finding all the pieces...at least if you use PLA it is biodegradable!

I launched one of these yesterday. It fired off perfect and flew perfectly straight. I used a B6-4 engine. It went high! I'm printing up 18 more of these for a school class to paint and launch.

It flies well with the C6-7 engine, too. Too high to see! But you could see the puff of smoke from the ejection charge.

Super! Post some photos of the class!

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