Disposable Rocket

thingiverse

Updated on August 7th, 2013, the design includes files for B/C size engines as well as some A-sized engines. The two-stage rockets with both A and B size engines perform admirably. Check out these videos (https://www.youtube.com/watch?v=mGV658F-S14, https://www.youtube.com/watch?v=yqqz5XzA2GQ, https://www.youtube.com/watch?v=YmJDoERuGF8, https://www.youtube.com/watch?v=OEV92Uavh04) to see them in action. The rocket is designed with simplicity in mind; it features a simple nose cone and tail fins that can be directly attached to a model rocket engine for a complete rocket (courtesy of Chris). Files are available for 1/2A size and B/C size. To assemble, slide the nose cone onto the top of the rocket engine, then attach the tail fins at the bottom ensuring that the guide tubes line up properly. For a two-stage rocket, print an additional fin section and add it to another rocket with a second engine. Be cautious not to launch directly from the ground without a guide rod; experience has shown this lesson firsthand. The single-stage version will shoot off the launcher quickly, almost out of sight in seconds, leaving only a puff of smoke in the distance due to the ejection charge. Since it's called a "Disposable Rocket," don't expect to recover the pieces as they likely won't survive the flight. It costs around 25 cents in materials and takes about 15-20 minutes to print. As the designer, I assume no responsibility for how you use this design, so please exercise good judgment when launching it, and avoid launching near people, buildings, or other important objects. The printing settings are flexible; almost every part is designed to be only 2 extruder widths thick, and layer height isn't critical. Just make sure the launch guides line up properly when attaching the parts. You may need to shave off some material or add tape around the openings for a snug fit over the engine.