FablabSU

The objective of this project is to conceptualize, simulate, and build a functioning rocket with the following capabilities:

• Wireless igntion
• Controlled decent with the aide of a parachute
• Wireless real-time data logging of: Altitude, acceleration, and temperature
• Take and save multiple images onto an onboard SD card

All parts of this rocket have been included as .STL files and the original models have been designed using “AutoDesk Inventor Student Version” and can be provided to anyone interested via e-mail.

The .STL files are found here:

• launch_bracket.stl
• rocket_fins.stl
• nose_cone.stl
• The main tube can be made of 40mm OD PVC tubing.

The Part “Rocket Fins” has been designed with a wall an overall wall thickness of 2.4mm. In order to print a solid, perfectly fused part, this needs to be taken into account. If the 3D printer is equipt with a 0.4mm extruding nozzle, 3 shells should be selected for the printing parameter. If the 3D printer is equipt with a 0.8 extruding nozzle, this part MAY NOT PRINT WELL (his has not been tested).

Fabrication of the Rocket: (COMING SOON)

The fabrication of rocket motors is inherently dangerous and this tutorial has only been included for educational purposes. I would advise that any user purchase an Estes class F motor which has an outer diameter of 29mm.

…that said, I have used an artcile, "Potassium Nitrate based Rocket Propulsion" as starting point to design a reliable motor.

Within the article the authors designed a motor with the dimensions: 21cm long by 2.5 cm in diamanter and therefore a total volume of approximately 104cm cubed.

According to the author, the motor has the impulse rating of 80-160 Ns (Class G rocket)

However, this article stated that the Rocket Nozzle was exerimentally designed by Richard Nakka.