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AGHAM
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MGA WEARABLE
Wooden Gears: a Cogwheel and a Lantern Pinion
Mill gears were long made of wood. A lantern pinion is two discs joined by a ring of rods; its teeth are only rods set in drilled holes, so it needs simple tools. A cogwheel is a disc with wooden cogs set round its face. Mark both on the same pitch, drill and glue in the cogs and rods, and let the wheel drive the pinion.
The picture: a lantern pinion of wooden rods meshing with a cogged wheel in Chesterton Mill.
Katamtaman
A day
Mga Tagubilin
1
1
Mark out
Mark out
With the dividers, scribe the cogwheel disc and two pinion discs on beech, and the pitch circles for the cogs and rods (step 5). Step off equal spacings round each pitch circle.
Mga materyales para sa hakbang na ito:
Kahoy na beech1 pirasoMga kailangang kasangkapan:
Kompas na dalawang tulis
Ruler2
2
Cut the discs
Cut the discs
Saw the discs out with the coping saw and rasp them round to the line. Drill the axle hole at each centre.
Mga kailangang kasangkapan:
Lagaring Pangkurba
Kikil na pangkahoy (rasp)
Barenang de-kamay3
3
Set the cogs
Set the cogs
Drill a hole at each mark on the face of the cogwheel and glue in a short dowel cog, all standing the same height. Round their tips a little.
Mga materyales para sa hakbang na ito:
Mga tarugong matigas na kahoy24 piraso
Pandikit na balat ng hayop20 gMga kailangang kasangkapan:
Barenang de-kamay
Lagaring may gulugod
Dobleng kaldero
Papel de Liha4
4
Build the pinion
Build the pinion
Drill matching holes in both pinion discs, glue rods between them to make the cage, and check that it runs true on its axle. Mesh it with the wheel: the wheel drives, the pinion is driven.
Mga materyales para sa hakbang na ito:
Mga tarugong matigas na kahoy8 pirasoPandikit na balat ng hayop10 gMga kailangang kasangkapan:
Barenang de-kamayLagaring may gulugodDobleng kaldero5
5
Pitch and ratio
Pitch and ratio
Naglo-load ng Jupyter notebook…
Mga Materyales
3- 1 pirasoPlaceholder
- 24 pirasoPlaceholder
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Mga Kinakailangang Kasangkapan
8- Placeholder
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