A recent 3D printed hobby rocket experiment from someone working on the forefront of actual-space project SpaceX — check out more of Steve Jurvetson‘s photostream for examples of printed tests and launch photos. Pretty incredible!
The 3D print removes the vast majority of the labor (fin attachment and alignment). It also has integrated launch lugs and fillets as part of the print. More build photos below.
It can take single use aerotech H motors, duct taped at the rear for retention. The golf ball weight can be shed at apogee, allowing the airframe to come back with a streamer of DANGER tape (the hardware store sells rolls of this inexpensive plastic)….
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it should be noted that Jurvetson is kind of a big deal. he is a venture capitalist and sits on the board for both SpaceX and Tesla. He is the world’s first Tesla Model S owner.
Having fins that are printed as one piece would surely make them stronger than gluing on fins and hoping they stay on.