I designed this rocket to start working on the spiralized printing technique. I get much better surface finish with this and lighter rockets. This worked beautifully and the result is a very high performance rocket that will soar to extreme altitude with 13mm Estes mini motors. I used Rocksim to review my design and test the heights the rocket would soar to. I highly recommend this software to anyone wanting to design their own rockets. Very easy to use and to date very accurate to predict performance.
0.6mm shell on Spiralized Fin Can. 100% infill on nose cone and motor stop. 15% infill on motor stop tool. Shell thickness 0.8mm on solid parts
-Small screw eye for nose cone
-12" of 150# test Kevlar kite line
-12" of elastic shock chord
-1" x 18" streamer for recovery
You will need to print (1) Nose cone, (1) motor stop, & (1) Fin can. All (3) fin can types have been tested and fly great.
Once printed, trial fit parts together. Nose cone should be a nice slip fit. The motor stop should also fit snug into the fin can.
I use gorilla glue super glue to glue together. I lightly sand the mating surfaces to rough them up. Tie the kevlar shock chord to the motor stop in the groove. Use the motor stop tool to locate the motor stop in the right position. Glue the motor stop into the fincan securely making sure the shock chord goes toward the front of the rocket.
Tie the elastic shock chord to the Kevlar line using a square knot. I also put a piece of heat shrink tubing over the knot for added security.
Screw in the small screw eye into the nose cone. Tie the elastic shock chord to the nose cone using a bowline. Leave a small loop so the elastic is knot isn't tight to the screw eye.
Tie the 1" x 18" streamer to the elastic shock chord about 4in from the nose cone.
Congratulations!!! Your mini rocket is complete!!
Use a wrap of masking tape to make the motor in the fin can fit snuggly. You don't want the ejection charge to eject the motor!!! Once your happy with the fit, install the motor into the rocket. Use 3 squares of recovery wadding and ball them up and push them down the body tube from the top of the rocket. Roll up the streamer and loosely pack the recovery system into the top of the rocket. Push on the nose cone.
Choose a safe flying site. This rocket is capable of extreme altitudes and high speed.
Good luck and safe flying.