Bend Master – Sheet Metal Bend

Bend Master is a sheet metal bending simulator and press brake calculator for fabricators, CNC operators, engineers and students. Set up your punch and V die, enter your flange lengths and angles, and watch the bend form exactly as it would on the machine — with the real bend allowance, K-factor and inside bend radius.
WHAT BEND MASTER DOES
▪ Sheet metal bending simulation — the punch descends, touches the sheet and forms the bend on screen, step by step.
▪ Flat pattern / unfold — exact blank length from your flange lengths, angles, radius and material. Bend allowance (BA) and bend deduction (BD) shown for every bend.
▪ K-factor — automatic K-factor matched to standard CAD values, or enter your own.
▪ Inside bend radius — calculated from material, thickness, V die opening and punch tip radius, not taken from a fixed table.
▪ Bend sequence finder — searches for a collision-free bending order and shows you where the sheet would hit the punch.
▪ Tonnage — required press brake tonnage for the material, thickness, V opening and part length.
▪ Measuring tool — measure any flange on screen, rotate and drag the part, check dimensions before you cut.
▪ Manufacturability checks — warnings for flanges too short to bend and for parts that do not seat correctly on the die.
TOOL EDITOR
Draw your own tooling instead of using presets. Punch profiles: Standard, Acute, Gooseneck, Sash, Radius, Hemming and Arrow, with editable height, tip radius, shank lengths and angles. V dies with editable opening, height, angle, radius and safety zones. Everything is drawn to real millimetre scale, so a 120 mm punch on a 60 mm die looks exactly like it does in the shop. Save your tools and reuse them.
MATERIALS
Mild steel ST37 / S235JR, ST52 / S355JR, ASTM A36, A572 Gr.50, DKP / DC01, pickled DD11, galvanized DX51D, stainless AISI 304 and AISI 316, aluminium 5052-H32, plus a custom material where you set tensile strength and radius factor yourself.
WHO IT IS FOR
Press brake operators, sheet metal workers, HVAC and ducting shops, metal fabrication workshops, mechanical engineers, CNC programmers, welders and vocational students — anyone who needs a fast, reliable sheetmetal bending calculator on the shop floor.
OTHER FEATURES
▪ Works fully offline — no internet needed on the shop floor.
▪ 9 languages: English, Turkish, Arabic, German, Spanish, French, Russian, Polish and Italian.
▪ Save parts with their lengths, angles and radii and recall them later.
▪ No ads, no tracking, no account required.
FREE TRIAL
Bend Master includes a 7-day free trial with full access. After the trial the bending simulation stays available with the two default tools; measuring, bend sequence finder, multi-flange flat pattern and the tool editor require a subscription.
Sheet metal bending should not need guesswork. Bend Master gives you the numbers before you press the pedal.
ALSO SEARCHED FOR AS
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Recent changes:
New in-app tutorial:
• Interactive tour of the simulation page: lengths, thickness, material and die, angle, simulation, side icons, inside/outside measuring and the suggested bend order.
• Tour of the flat page: material, thickness, radius, legs and angles through to the flat length.
• Starts automatically on first launch and is always available in the side menu, under the language picker.
• Available in nine languages.