🎢 Double Cone & Roller Uphill Toy – Defying Gravity with Science!

Watch objects roll UPHILL and defy common sense! This educational toy demonstrates fascinating physics principles through two seemingly impossible behaviors: a double cone that rolls uphill, and a cylinder that can be "programmed" to climb or resist movement using weights. Perfect for classrooms, science fairs, or curious minds!

🔬 What Makes This Toy Special?

Unlike simpler versions, this model includes two extra elements that elevate the learning experience:

1. The Uphill Double Cone

• Rolls uphill on diverging rails (2° incline)
• Teaches center of mass and apparent anti-gravity

2. The "Behavioral" Weighted Cylinder

• Two hidden chambers for 8mm diameter weights
• Three modes:
  • Climb Mode: Weight positioned high → rolls uphill
  • Resist Mode: Weight positioned low → refuses to roll
  • Neutral Mode: Balanced weights → normal rolling

3. The Neutral Cone

• Calibrated to stay still on level surface
• Demonstrates precision physics balance

🎯 Learning Outcomes:

✔ Center of mass & gravity
✔ Inclined plane mechanics
✔ Experimental method – hypothesis testing

🛠️ Setup & Calibration Tips:

• Requires level surface – use a spirit level
• Fine-tuning: Lightly sand or add adhesive putty for perfect balance
• Weights: Use 8mm diameter (80 mm length) rods, nails, bolts!
• Experiment: Try different weight positions and observe changes

🖨️ Print Settings:

• Material: PLA (PETG)
• Layer Height: 0.2mm
• Infill: 10 - 30%

🚀 Call to Action:

👉 DOWNLOAD and unlock the secrets of apparent anti-gravity!
👉 SHARE YOUR EXPERIMENTS

Want customized versions for your classroom? Message me for bulk or modified designs!

👨🔬 Perfect For:

• Teachers demonstrating physics principles
• Parents nurturing scientific curiosity
• Students exploring hands-on learning
• Makers who love intellectual challenges

Because seeing shouldn't always mean believing – sometimes it means understanding! 🧠⚡

Note: The magic isn't in defying physics, but in understanding it better! Each "impossible" behavior has a beautiful scientific explanation waiting to be discovered.