Estes Explorer Aquarius Flying Rocket Model

This is based on the partial 3D design but customized to

+ add a 3D printed fin can using an OpenSCAD library
+ add a complete 24mm motor mount with screw-on motor retainer
+ fix some printing problems with the nosecone - I think there can be further improvements here.

It needs the following non-3D parts:

+ 12x BT-20 4" tubes
+ 1x BT-55 18" body tube
+ 1x. BT-50 12" motor mount tube
+ 1x screw eye for recovery retention
+ Recovery harness (I prefer kevlar kite line)
+ Parachute

A tad on heavy side, I've included a partial Open Rocket model with motor suggestions. The OR model is only partial since OR doesn't cope well with multiple tubes, I've overridden mass and drag to suggests what I believe are the appropriate parameters.