OVER 3 METERS
This is an extreme example of an evolute housing spiral, i.e. one that is rolled up in many turns. If a thread is attached to the coils, the total length of the casing tube is 320 centimetres.
This is an extreme example of an evolute housing spiral, i.e. one that is rolled up in many turns. If a thread is attached to the coils, the total length of the casing tube is 320 centimetres.
