Ferrari Tachometer Start Engine Key Holder

🏎️ Tachometer Key Holder "Start & Stop" - Ferrari Theme 🏁

 

A unique and detailed wall accessory inspired by the world of Ferrari racing, combining automotive passion and functionality.

 

✨ Innovative Operation

 

This key holder features an ingenious weight mechanism that simulates a car engine starting and stopping:

• "START" (Engine On): When you hang the keys, the weight makes the tachometer needle rise, just like an engine starting.
• "STOP" (Engine Off): When you remove them, the needle gently drops to zero.

📐 Technical Printing and Assembly Details

 

• Total Diameter: Approximately 12 cm.
• Print Quality: Highly detailed.
  • Dial: To ensure maximum fidelity and readability, printing with a 0.2mm nozzle is recommended.
  • Other Components: Can be printed with a standard nozzle.

 

Assembly Instructions:

 

1. Gluing the Display: Secure the circular frame and then the dial into the housing using glue.
2. Weight Balancing: Apply small weights to the internal gear with glue. Experiment with different weights and distances to find the ideal actuation force for your keys.
3. Mechanism Attachment: After inserting the hanger into the base body, bend it slightly to ensure perfect alignment and correct engagement with the internal gear.

 

🔗 References

 

The operating mechanism is inspired by the "Speedometer Key Holder" model by Midar3d (available on MakerWorld).

 

⚠️ Standard License Warning (Non-Commercial Use)

 

This digital file is provided with a Strictly Non-Commercial Standard License

• Permitted Use: The model is intended solely for personal and private use (e.g., 3D printing it for yourself)
• Strictly Prohibited Use: Any use for profit or commercial purposes is strictly forbidden. This includes, but is not limited to:
  • Selling or Distributing the digital file (or any modifications of it)
  • Offering 3D printing services (you cannot sell physical prints of the model)
  • Distributing it on any other platform or website
  • Requesting any form of payment for the file or derived prints

In short: You cannot make money from this model or share it publicly.