Hello friends, this instructables is about how to make a simplest boomerang. This type of boomerang is very simple to build and throw and catch. Yes, it returns right in hands!
You can watch all process of making this simpliest 4 blade X shape boomerang in my video[VIDEO LINK]
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Step 1: Collect Some Wooden Boards
We need 2 piece of wooden board with width about 4 cm, 7mm thick and 30 cm length. You can use another sizes, so there is a space for experiments. Process your boards with sandpaper to make it clean if it's needed.
Step 2: Crosswising
Both blades will be fixed crosswise, one blade inside other blade, at half. So let’s make a groove.
Step 3: Cut Off the Square Piece
Use knife to cut off square middle part and rid of leftovers.
Step 4: Rough Aerodynamics
Now we need to process blades into airplane 's wing shape, it is about ascensional power. Use a knife to shape it.
Step 5: Improved Aerodynamics
Continue with file and sandpaper
Step 6: A Little Drop of Glue
And now it's time to fix blades with glue. Use any glue for wood, or epoxy. Then press blades for a while, and wait the glue to dry.
Step 7: Perfect Aerodynamics!
After this use sandpaper to create a perfect smooth aerodynamic surface. Boomerang is almost done!
Step 8: Heavy Ends
Usually this type of boomerang doesn’t need of tuning and setting, but if it is very light and stops spinning in the end of trajectory, just heavier the ends of blades. Make holes and put sinkers inside them. Fill roughness with glue to reduce air drag.
Step 9: Add Some Paint
Use acrylic paint to make your boomerang colorful and bright. BUT REMEMBER! Never paint boomerang with green color!
Step 10: Flight School
If there is a wind, you need to throw your rang at the angle about 90 degrees from wind. Hold it like this way, and throw in horizontal direction. It will make a loop and return to you along the wind. Catch it with top down "clap" moving of your hands. Just WATCH A VIDEO, I captured a process of throwing and catching with a camera on my head =).
Protect your fingers! Good luck.