Tri-Bladed Boomerang

thingiverse

This tri-bladed boomerang is designed for recreational throwing, with dimensions of 200 mm width, 178 mm height and a thickness of 3.5 mm. Alternative sizes may work but results can vary. For optimal performance, the 4mm holes should be filled with metal to improve spin retention and distance. You can use 4mm copper rivets or M5 thread (core diameter 4mm) for this purpose. If needed, smoothing the surface with a card scraper could enhance the print's finish. There are two STL files: one marked 'LEFTY_...' is for left-handed throwers requiring mirror image of right-handed versions, while others can ignore this file and use the other one. Note that any shading artifacts in the rendered picture are just Blender's visual representation errors; the actual model should be fine.