Trapeze Gymnast Fidget Toy

Trapeze Gymnast: A Classic Mechanical Fidget 

The Trapeze Gymnast is a high-energy mechanical toy reimagined for 3D printing. Using a simple squeeze-action frame and the power of string torsion, this miniature athlete performs high-flying flips and 360-degree spins right on your desk. It’s an addictive, tactile fidget that’s easy to print and even easier to assemble!

A Favorite for Kids

This is the kind of toy that kids simply can't put down. It offers instant gratification - one squeeze and the gymnast is off! It’s a wonderful way to introduce children to basic physics, showing them how tension and movement work together in a way they can actually feel.

How it Works

This toy operates on a torsion-tension mechanism. Instead of the figure sliding, he stays centered on a pair of parallel strings.

• The Squeeze: When you squeeze the base of the poles, they tilt inward. This slacks the strings slightly.
• The Flip: As the poles move, the twisting tension on the strings changes rapidly, "kicking" the gymnast into a spinning motion.
• The Momentum: By squeezing and releasing in a rhythmic pulse, you can make the acrobat swing higher and higher until he pulls off a full backflip!

Additional Material: Around 18cm string

Step-by-Step Base Assembly 

1. Insert the 2 poles structured inside the box through the top holes all the way.
2. Squeeze the spring and keep sliding the poles until the 2 tabs fit through the side holes of the box.
3. Fit the buttons on the side tabs.
4. Fit the bottom closing of the box.

5. Proceed to the string setup.

   

    

Step-by-Step String Setup

1. Start at the Left Pole: Pass the string through the top hole of the Left Pole (from outside to inside).
2. The First Pass: Pull the string to the Gymnast Figurine. Thread it through the lower holes in both arms, then through the top hole of the Right Pole.
3. The Return Loop: Re-enter the string through the bottom hole of the Right Pole.
4. The Essential Twist: Cross the string over the first line before entering the upper holes of the figurine’s arms. This "X" twist is what makes the gymnast flip!
5. Finish at the Left Pole: Thread the string through the bottom hole of the Left Pole to the exterior.
6. The Final Knot: Pull the string taut so the figurine stays upright, then tie a strong permanent knot on the outside of the Left Pole.

Attention: I added a little painted brim at the gymnast figure shoulders to secure a perfect print.

New Character added

• Homer Simpson