Weaving & Fabric Construction

Dobby & Jacquard Harness Load Calculator

Shed angle drives harness load far more than most weavers expect. Halving it nearly halves the force.

Warp Distribution
no.
no.
cN
Shedding Motion and frame
deg
kg
N

Load per Shaft

— N

Yarn lifting force plus frame weight

Load Breakdown

Ends per Shaft
— no.
Yarn Lifting Force
— N
Frame Weight
— N
Share of Rated Load
— %

Load Composition

—% yarn —% frame

This is the static lifting load. Inertial loading at speed can double it, so keep steady-state utilisation well under the rating on fast dobbies.

Dobby & Jacquard Harness Load Calculator — free, with the formula and a worked example, at Textile School.