Rocket Science canned air rocket with Interchangeable Fins

thingiverse

Rocket with Interchangeable Fins: A Game-Changer for Rocket Builders. I'm done with breaking off fins and reprinting entire rockets. The new design lets me print fins flat on the print surface in layers, eliminating the hassle of replacement parts. The ring and false fins are strictly for printing stability. Remove them from the rocket body using flush cutters to trim the ring and a razor to score the false fin at its base. Then snap off the false fin. Insert printed fins into slots at the base of the rocket body. If they don't fit, use an emery board to gently sand the slot until you get a snug fit. Folded sandpaper can also be used for this purpose. A tube from Dustoff brand canned air fits perfectly; other brands may have too large a tube. To fly, inject water and then compressed air. Hold the can slightly inverted and squeeze the trigger quickly. Print Settings: Printer Brand: LulzBot Printer: TAZ 5 Rafts: Yes Supports: No Resolution: .5 mm with .25 layer height Infill: 0% Notes: Use brim only; I found that printing without a raft is possible. Layer Height: .25 for all parts. Shell Thickness: .5 or 1 mm. A .5 mm shell makes the lower fuselage more fragile but lighter.