Calculate bend allowance and bend deduction.
Enter your known K-factor and bend geometry. Use the result for estimating and flat-pattern checks, then verify against your actual tooling, material and bend table.
Bend inputs
Bend allowance = angle in radians × (inside radius + K × thickness).
Calculated bend values
Bend allowance4.147 mm
Outside setback3.600 mm
Bend deduction3.053 mm
Neutral-axis position0.640 mm
K-factor is not universal. It changes with material, thickness, bend radius, tooling and process. Use a proven shop bend table or test bend for production-critical flat patterns.
Want bend context alongside the quote?
RavQuote can detect likely bend/fold layers in supported DXFs and keep the estimator in control.
See DXF quoting