Smart Head- nose cone assy av bay, 3d printed

[kramer714]

Smart Head – Eggfinder Quantum

Lately I have been playing with 29 mm motors both Hybrid and solids. I wanted a simple ‘Smart Head’ just an altimeter that fires at altitude, and is a simple replacement for a nose cone on a 38mm tube, replacement including a 3d Printed Nose Cone. I’m using a quantum, because there is no switch, it uses WIFI. The sled uses a 400mAh 2S lipo.

The design can work with zipper-less designs (shown with screws attaching it to the payload bay) or as a traditional nose cone.

I don’t like using eye bolts on small av bays, they are usually in the way of what goes behind them, plus they take up space in the tube. I have bee using Eye Straps, and (2) #6 screws that screw into heat set inserts in the sled. I didn't get around to counter sinking the screws yet, the pictures show button head but they will be flush.

It is a 3 part design, the base (purple in renderings) the cup (gray in renderings) and the cone (green in the renderings).
BASE - The base is tapped for 4-40 threads for connecting the board, 6-32 heat set inserts are installed into the bottom of the base, and (6) 4-40 inserts for attaching the cone to the base and the base to the body tube (zipperless design).

CUP - The cup acts as a gas seal and as the cover for the battery. It is attached to the base using #6 screws passing thru the eye strap and cup and screwed into the inserts in the base. There are 3 holes, 120 degrees

CONE - the cone is 3d printed with (3) holes for screwing it to the base through the cup, and vent holes. It is printed tip up.

The smart head weighs 100 grams includingthe battery, (3) 3d printed parts, eyestrap, all screws, and Quantum board.

 

[happyhaplo]

I was thinking of getting a quantum and had hopes to mount into a nosecone, are these stls available anywhere?

 

[kramer714]

I was thinking of getting a quantum and had hopes to mount into a nosecone, are these stls available anywhere?

I made this for a 3d printed nosecone too, are you using an off the shelf nosecone or want to use the 3d printed one? Fiberglass nosecone?

If you are I will take out the premade holes in the mount, better to matchdrill them so they line up with the nosecone.

Let me know And I will send you a STL that will work.

 

[happyhaplo]

I made this for a 3d printed nosecone too, are you using an off the shelf nosecone or want to use the 3d printed one? Fiberglass nosecone?

If you are I will take out the premade holes in the mount, better to matchdrill them so they line up with the nosecone.

Let me know And I will send you a STL that will work.

Have you had any success with this as a modular holder? I have a few applications in mind : a 38mm fiberglass, a 3 inch Der big red max cone and maybe even a 3d printed.