Harmonic Wave Planetary Drive Card Holder (see video)
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🤗Hugs🤗 49 micro-SD cards with a compact 76:1 mechanism. Dial in the exact force with micrometer precision.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Photo & Video
- Licencja
- Standard Digital File License
Insert the cards, then turn the bottom ring to hold them securely in place. The mechanism uses a high reduction ratio of 76:1. Meaning you will turn the bottom 76 times, but the internal output gear will rotate only once.
ALL 49 cards are held tight thanks to tiny compliant mechanisms. The "Compliant Plate" is a gear that has 2x flexible fingers per card slot. When this plate is rotated, the fingers push on a SD card, and the card pushes into a slot. With my design all cards in any slot always get just enough holding force.
The bottom is the input gear, it has 112 teeth. It turns the planetary gears which have 13 teeth each. The two planets are attached by a floating carrier. This carrier with planets acts as a rigid wave generator in a harmonic gearbox that consists of the following: a stator with 86 teeth and an output gear with 88. The output gear directly drives the "Compliant Plate". The stator gear is part of the MID plate component.
62g/21m of filament.
NOTE: Printing is always welcome at any point. This is an entry in a contest and I will change the license to allow remixing after the contest ends. Give it a like if you think it deserves to win.