Spiral Boomerang
thingiverse
This is an incredibly precise boomerang in motion due to its remarkable spiral design. Printed with precision using PLA material, it boasts a 20% infill density and features two perimeters, carefully crafted across four layers on top and bottom. To achieve optimal flight performance, it's essential to twist the blades slightly, creating a tiny positive angle of incidence. Additionally, applying a gentle thermal treatment by heating the PLA with your heated bed can also provide a subtle dihedral effect. Check out this impressive demonstration: https://youtu.be/nqgleZn1oF0
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