Lockheed SR-71 Blackbird simplified cnc/laser

thingiverse

The SR-71, called Blackbird, is the fastest plane (non rocket-powered) on earth. Although none of the 32 planes build had enemy contact, 12 of them where lost. My build was done on a desktop cnc-machine by Stepcraft from 6 mm beech plywood using a spiral-toothed 1.2 mm flute. Glued together and nicely sanded it's a great toy for boys (of different age). A laser cutter might be a good alternative tool to create smaller versions. Visit https://www.zenziwerken.de/en/Spielsachen/Flugzeugmodelle for more designs. Keep in mind, that the obj-file of the model is just for validating the construction and viewing in the browser. How I Designed This I took 3-view drawings of this plane from wikipedia to save the tracing, then used Illustrator to carve out the main features. The slots were a result of trail and error. Before building the plane I did a 3D validation in SketchUp. Then I nested the parts as close as possible for production on a cnc-router.