74mm Model Rocket Coupler

This is a **74mm model rocket body tube adapter**.

It connects 2 (74mm) x cardboard body tubes.

It is designed to be used with body tubes like this ones:
[Apogee - 74mm x 18" Body Tube (Thin Wall 3" tube)](https://www.apogeerockets.com/index.php?main_page=advanced_search_result&search_in_description=0&keyword=10202)


It is meant to substitute 3" Tube couplers, such as:
[Apogee - Tube Coupler for 3" diameter Thin-Wall Model Rocket Body Tubes](https://www.apogeerockets.com/Building_Supplies/Body_Tube_Couplers/56mm_to_98mm_4in_Couplers/AC-74_3in_Thin_Wall_2_pk)

The printed part, weights less than the cardboard couplers by a few grams.

You will need 4 screws (2.5/3mm) to hold the coupler to the tube in place.


CAD Fusion360 model included in files