Modular Model Rocket by Landru

Original info from Thingiverse

Summary

NEW! as of June 17.

This is now a complete modular rocket system!

Pick a nosecone, body tube(s), fincan, nosecone coupler, and voila! A semi custom printable rocket!

I plan to be adding new sections on a regular basis so check back often! Feel free to leave feedback if there is some feature you'd like to see that isn't up yet :)

Important dimensions to make compatible modules:
Tube Outside Diameter - 1.75in
Tube Inside Diameter - 1.667in
Coupler Tube Outside Diameter (tight): 1.663in
Coupler Tube Outside diameter (looser): 1.659in

NOTE: The designs are closely based on the Legacy design and should work well, but many of them are still untested. I'm working on it, though.

Instructions

A minimum 4x4x4 build area is required to print all parts individually. I've shortened the fin span very slightly to allow this to be (theoretically) printed on the ABP.

The rocket parts are designed to have .35mm layers and 1.5 width over thickness, so the tubes are exactly two extruded filaments wide. The walls are pretty thin so printing at other settings may produce hollow walls which probably won't work well.

Step 1:
Select Components. You will need a nosecone, body tube, fincan, and nosecone coupler. You can use multiple body tubes to make a longer rocket if desired

Step 2:
Print parts. They printed with the perfect tightness on my printer. You may need to sand some mating surfaces or add tape for the correct fit.

Step 3:
Screw and glue nosecone to coupler.

Step4:
Tie the nosecone coupler to the fin can through the body tube with 3ft of non-flammable cord. Attach a parachute or streamer if desired (HIGHLY RECOMMENDED)

Step 5:
Insert Motor and add short drywall screw to the rear of the rocket for motor retention. You can also put tape around the rocket motor for a tight friction fit.

Step 6:
Fly safely and have fun!