Eggcopter

Finished the drop-tests (4.5+ m). Total success!!!!!!!!!! )))) The first flight of the eggs is safe. Finished the drop-test #2 (13.6 m). Success! New video: https://youtu.be/uzMLbDz-Gms New stl-files of blades and others mod. parts search in "New_mod" folder. The main idea of this design is not to reduce a fall speed, it's still high enough, but in distribution of the load on the egg in a certain direction when it hits a surface. The main task of the blades - is to ensure strict vertical falling and provide impact on the ground in the desired point of the container - along vertical axis of the egg. With radial load distribution on the egg-shell it can withstand tens of kilograms! I know this from my childhood, when I watched science programs for children. In one such video, an ordinary man stood on the light bulb, placed in a metal cylinder so that the bulb equator was abut to the cylinder walls, and the bulb is not cracked. On the eggshell - the same principle, I thought, and so it proved. Assembly instructions: https://youtu.be/WnM7fjeB0Gs Print Settings: Main parts: ABS Resolution: 0.20 layer, 0.4 nozzle, 0.33 width, 3 perimeters, 4 bot. and top layers Infill: 25% (90-100% for parts #12 and #6) Raft: No (if you wish, some parts with rafts is in "Arrange_or_rafts" folder). Support: No Flex parts I printed with a flex filament. Thermoplastic elastomer (TPE) that produces flexible prints with elastic properties. I used also the 3M blue scotch tape on hotbed for this parts. I printed all the parts on my second self-made https://grabcad.com/library/squarebot-3d-printer-2 Please check it.