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Mechanical Piston Key Hanger / Engine Block Style 3D Printer File Image 1
Mechanical Piston Key Hanger / Engine Block Style 3D Printer File Image 2
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Mechanical Piston Key Hanger / Engine Block Style

GEEKRAGE avatarGEEKRAGE

January 27, 2026

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Description

Boost Me

Mechanical Piston Key Hanger: B6 Engine Style

This is a mechanical key hanger for every car enthusiast. Inspired by the legendary Mazda B6 engine, I spent hours sketching linkage mechanisms on paper to bring this "moving" art piece to life.

How it works: When you hang your keys, the internal mechanism converts the weight into vertical movement, making the piston rise from the cylinder block. The entire mechanism is 100% 3D printed—no springs or extra screws are needed.

Story: I wanted to bring the excitement of the garage into the home. Before touching CAD, I repeatedly calculated the linkage on paper to find the ideal movement. It takes 11 hours to print on an A1 mini, but every second reflects a passion for car culture.

Print Settings:

  • Filament: PLA/PETG (Silver for pistons recommended).
  • Wall Loops: 3+ for strength.
  • Support: Tree supports recommended for internal cavities.
  • Note: If the movement feels stiff, a small drop of lubricant works wonders!

     

ピストン連動型メカニカルキーハンガー:B6エンジン・スタイル

ロードスターの心臓部「B6エンジン」にインスパイアされた、鍵を掛ける動作と連動して動くキーハンガーです。

ギミック解説: 鍵をフックに掛けると、内部のリンク機構がその重さを利用してピストンを押し上げます。バネやネジなどの外部パーツは一切不要。すべての機構を3Dプリントだけで完結させました。

制作ストーリー: CADに向かう前に、紙の上でリンクの軌道を何度も描き、この動きを形にしました。A1 miniで11時間という長い印刷時間がかかりますが、その分、完成して動かした瞬間の楽しさは格別です。

推奨設定:

  • フィラメント: PLAまたはPETG(ピストンはシルバー推奨)。
  • 壁のライン数: 強度確保のため3以上を推奨。
  • サポート: 内部空洞にはツリーサポートを使用してください。
  • 調整: 動きが渋い場合は、シリコンスプレー等を少量差すとスムーズに動きます。

License:

Standard Digital File License

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