2 Million to 1: Nested Strain Wave Gearbox
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Demonstration piece showcasing a massive 2,023,680:1 total reduction
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Engineering
- Licencja
- Creative Commons — Attribution — Noncommercial — Share Alike
It is designed to be fully 3D printed with minimal hardware required, making it a highly accessible build that visually breaks down complex mechanical engineering. It includes a custom base to display the final assembly while it runs.
(PLEASE NOTE: This build uses 2 2.5*6mm machine screws, along with the USB TT motor from MakerSupply.)
The Math (Gear Ratios)
The extreme reduction is achieved through four nested stages:
Stage 1: 20:1
Stage 2: 34:1
Stage 3: 48:1
Stage 4: 62:1
Bill of Materials (BOM)
All printed components (including display stand)
1x USB TT Motor (Amazon or MakerSupply)
2x 2.5x6mm machine screws (Note: These are the exact same screws used in the Cyber Brick build)
Lubricant (for the flexsplines)
Assembly Instructions
Mount the Motor: Install the USB TT motor into the assembly and secure it with the motor housing using the two 2.5x6mm machine screws.
Install Wave Guides: Snap the wave guides (top gear portions) securely into their designated places.
Prep the Flexsplines: Apply lubricant to the smooth side of the flexsplines (the flexible rings).
Seat the Flexsplines: Carefully install the lubricated flexsplines into their appropriately sized channels.
Final Drive: Press the wave generator onto the TT Motor shaft.