Bobbin volume¶
Reference — Calculation: winding volume of a bobbin from its geometry
Purpose¶
Calculates the winding volume of a bobbin from its geometry. In everyday braiding, the result helps you estimate how much material fits on a bobbin and whether the chosen bobbin is sufficient for a yarn.
Inputs¶
| Field | Unit | Meaning |
|---|---|---|
| Outer diameter: | mm | Maximum diameter of the full bobbin (over the wound material). |
| Core diameter: | mm | Diameter of the bobbin core (winding body without material). |
| Winding length: | mm | Length of the usable winding surface between the flanges. |
All inputs in millimeters
Outer diameter, core diameter and winding length are entered in millimeters. All three values must be greater than 0.
Result¶
| Value | Unit | Meaning |
|---|---|---|
| Bobbin volume: | ccm (cm³) | Volume of the winding space, i.e. the cavity between core and outer diameter over the winding length. Displayed with two decimal places. |
Operation¶
The common structure of all calculation pages is described in How calculation pages are structured. This page has no further special features – three dimensions, one result.
Calculation¶
The exact calculation formula is not part of this documentation.