Manufacturing and machining
Sheet metal bend deduction
Calculates BA, OSSB, and BD = 2 × OSSB - BA for one bend line.
Related calculators
Sheet metal bend allowance
Calculates BA = θ_rad × (Ri + Kt) for a bend angle measured from the flat state.
Flat length from outside flanges
Calculates L_flat = A + B - BD for one bend and outside flange dimensions.
Flat length from tangent lengths
Calculates L_flat = L_tangent_1 + L_tangent_2 + BA without mixing outside flange dimensions.
K-factor from measured BA
Solves K = (BA/θ_rad - Ri) / t from a measured bend allowance.
Sheet metal outside setback
Calculates OSSB = (Ri + t) × tan(θ/2) for two outside flanges.
Material roll length and mass
Calculates length, outer diameter, turn count, and mass from the winding volume equation.