Hand-cranked Phone Rocker
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Cranking this phone rocker will give you free steps to let you win step competitions, walking games and more!
- Ocena
- 0 / 5
- Polubienia
- 6
- Pobrania
- 19
- Wydruki
- 0
- Wyświetlenia
- 150
- Oceny
- 0
Aktualizacja u źródła:
Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other Gadgets
- Licencja
- Creative Commons — Attribution
Joined a step competition but can't take enough steps to stay out of last place?
Fear not, this 3d printed phone rocker will solve all your lackluster step problems and more!
Usage Instructions
Simply place your phone within the holder and rotate the clips to keep it snug as shown in the photo below.
Then turn the crank to power the mechanism and watch the steps roll in!
Assembly Instructions
Assembly of the device is pretty simple if you follow these instructions:
First, thread the cylindrical tube through the phone holder, making sure that the side on the holder with the long window is not the side on the tube with the extruded stop as shown below.
Push the wheel axle into the frame with 3 legs, and snap the handle into place.
Press the tube and holder assembly in step 1 into the corresponding hole in the frame in step 2, making sure that the orientation matches the photo below.
Align the wheel hole and the phone holder opening and press the pin into the wheel through the phone holder.
Press the other leg into the other side of the tube.
Fit this entire assembly into the base part through the holes and the corresponding extrusions on the legs.
Press the clips into the slots on the phone holder, and the handle into the crank.
Now you're ready to start collecting steps!
Finished assembly:
How it works:
Inspired by Mechanism #100 in 507 Mechanical Movements, turning the crank turns the rotary movement into a oscillating pendulum type movement. However, this movement is not symmetric, because when the pin is at the top it will move faster than when the pin is at the bottom. I used this mechanism for exactly that purpose, as a completely balanced movement would probably not register on a phone, but this has a higher chance of being detected as steps due to its unbalanced nature. It moves roughly over 60 degrees between the edges so a single cycle should be enough to be detected as a step.