Brief description

A machine used to transform fibers (wool, flax, cotton) into thread or yarn. It uses a large Wheel to rotate a Spindle at high speed via a belt, significantly increasing production speed compared to a hand spindle.

Use / Function

• Primary use: Rapidly spinning fibers into yarn.
• Secondary uses: Plying (twisting) multiple threads together to make stronger yarn.
• Scale: Domestic / Workshop.

Operating principle

The spinning wheel relies on mechanical advantage and angular momentum.

1. Transmission: A large wheel (drive wheel) is connected by a belt (drive band) to a much smaller pulley on the spindle mechanism.
2. Gear Ratio: One rotation of the large wheel causes many rotations of the spindle.
3. Twist & Draw: The rotation twists the fibers while the user drafts (pulls) them out.
4. Winding: In simpler wheels (Great Wheel), spinning and winding are separate steps. In treadle wheels with a flyer, twisting and winding happen simultaneously.

How to create it

Minimum functional version (Charkha / Hand-turned Wheel)

1. Base: A stable Wood frame.
2. Wheel: A large hoop or solid disk mounted on an axle.
3. Spindle Unit: A horizontal spindle mounted on bearings, with a small pulley (whorl).
4. Belt: A cord or Leather strap connecting the large wheel to the spindle pulley.

Technical level

Intermediate. Requires precise carpentry for the wheel and bearings.

Materials needed

• Essential materials:
  • Wood: For the frame, wheel spokes, and rim.
  • Axle material: Hardwood or Iron rod.
  • Belt: Leather strap, strong cord, or gut.
  • Lubricant: Animal Fat or vegetable oil for the axle bearings.
• Tools:
  • Saw, Chisel, Drill/Auger.
  • Measuring tools.

Variants and improvements

• Great Wheel (Walking Wheel): Large wheel turned by hand. The spinner walks back to draw the thread and forward to wind it. Simple mechanism, high speed.
• Saxony Wheel (Treadle Wheel): Adds a foot treadle (leaving hands free) and a flyer mechanism (twists and winds simultaneously). Continuous action.
• Charkha: Portable, horizontal floor wheel.

Limits and risks

• Complexity: Harder to build and maintain than a drop spindle.
• Portability: Much larger and heavier than a spindle.
• Maintenance: Bearings need lubrication; belts stretch and need adjustment.
• Fingers: Moving parts can pinch fingers or catch loose clothing.