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Vibrating windmill — 1 × 20 cm hard wood stick, end notched into ripples; propeller nailed at the tip; 15 cm scraper stick; scrape back and forth to make it vibrate and the propeller spins.
A vibrating windmill is a toy of the same type as the whirligig. It relies on vibrations from a stick that has been notched into wave-like ridges, which makes the propeller spin.
This blueprint makes a real vibrating windmill at the size given in the source.
Beginner
About 1-2 hours
Instructions
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Actual size
Actual size
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Previously rotated
Previously rotated
The turbine rotates using a rope to pull the shaft; the turbine vibrates using the vibration from scraping the rod that is bent into ripples.
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Read from source
Read from source
"The vibration of the wood is transmitted, creating waves and causing the propeller to rotate." (Sirindhorn Anthropology Center, author not specified, CC BY 4.0)
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Pinwheel stick
Pinwheel stick
Select a hardwood stick about 1 cm in diameter and approximately 20 cm long. Use a knife to shave it progressively from thicker to thinner. Shape the tip into wave-like ripples, and round the base into a handle grip.
Materials for this step:
Hardwood Block1 pieceTools needed:
Knife5
5
Propeller
Propeller
Use a knife to whittle the wood into a propeller, drill a hole in the center, and hammer a nail firmly into the end of the stem, at least about 2.5 cm deep.
Materials for this step:
Nails1 pieceTools needed:
Hammer6
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Scraper stick
Scraper stick
Use bamboo or hardwood, about 15 cm long and 0.7 cm in diameter, carved into a round shape that fits comfortably in the hand.
Materials for this step:
Bamboo Poles1 piece7
7
Actual image
Actual image
Actual vibrating turbine image (Sirindhorn Anthropology Center, unknown author, CC BY 4.0)
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How to Play
How to Play
Hold the handle of the windmill crank with your left hand, and hold the scraper in the other hand. Scrape back and forth across the ridged section, and the vibration is transmitted to the propeller, making it spin.
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Troubleshooting
Troubleshooting
Turbine Vibration Troubleshooting
Flow
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History and Limitations
History and Limitations
The vibrating turbine is a toy of the same type as the spinning top. Be careful of knives and hammers.
Source: Sirindhorn Anthropology Centre, Folk Tools and Implements Database "Vibrating Turbine" (author not specified) (license CC BY 4.0)
**Limitations** The source does not provide the size of the blades, or the number or spacing of the ripples.
Materials
3- 1 piecePlaceholder
- 1 piecePlaceholder
- 1 piecePlaceholder
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