![If you have built a Borealis rocket, with those lovely thin tubes separating the 2 fuselage sections, you will want this](https://cdn.thingiverse.com/renders/63/64/75/cf/ff/borealis_upper_tube_and_coupler_v2_preview_featured.jpg)
If you have built a Borealis rocket, with those lovely thin tubes separating the 2 fuselage sections, you will want this
thingiverse
My Borealis flew fine, but those thin paper/card tubes just didn't last. I replaced mine with brass tubing and designed this to replace the upper fuselage. In time I will redo the whole rocket in plastic. This replaces the top tube which tends to crumple in a hard landing.
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