Wheel diameter: Flyer Pulley diameter in a double drive or scotch tension system
Wheel diameter: Bobbin Pulley diameter in a single drive bobbin-lead system
What the ratio means:
Example- at a ratio of 7:1, the flyer will make 7 revolutions for every 1 revolution of the wheel (one stroke of the treadle).
- A higher ratio means that you can add more twist faster, and with less treadling.
- Lower ratios are more suitable for bulkier yarns, and for people who draft slowly (ie. Beginners)
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