Shop Tools

Length — mm ⇄ inch

=
1 inch = 25.4 mm

Force — kN · US tons · metric tonnes

1 kN = 0.1124 US tons = 0.1020 metric tonnes

Tool maximum — per length

European tooling is rated in kN/mm. Enter the rating and your bend length to get the max load that tool can take.
Enter a rating and length.

Tooling recommendation

Starting points from material thickness — adjust to your shop and supplier.
Enter a thickness.
Why a wider V? A bigger V-opening forms with far less force and saves your tooling — like snapping a stick: nearly impossible with your hands close together, easy when they're far apart. The metal has more leverage to bend.

K-factor — suggested

A starting K for your material and method. The neutral axis sits this fraction of the thickness in from the inside face. Override anytime.

Bend allowance / deduction

Enter angle, radius, thickness.
Radius and thickness in the same units; result matches. Angle is the bend angle (90° for a square corner).

Flat-blank length

Sum of flange lengths minus each bend's deduction = the flat to cut. Enter flanges and bends; uses the K below.
Enter flanges, bends, radius, thickness.
Flange lengths are the outside dimensions added up. Assumes 90° bends; for other angles use the Bend allowance tool per bend.

Save Setup

Saved locally on this device. Your setup, measurements, notes, and corrections are stored so you can reopen this part later.

Saved Parts

Build the part as one continuous run, edge to edge. Declare your bends, mark any solos and reverse bends, then tap the bends in order to lay the chain — PBGenie reads the other side automatically and gives you every bend correction, ready for the machine.

1
Bends
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2
Reverse = flange hangs out of the machine (flips the correction sign). Gauge source is where the backgauge sits — left edge, right edge, or another bend (a bend gauged off another bend inherits that bend's edge automatically). Flipped = the bend is mirrored relative to B1; PBGenie works out the rest. B1 is never flipped. To lengthen a segment go minus, to shorten go plus.
2
Solo Bends
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Solos are standalone flanges — a bend to a free edge, not part of a chain. Tap the bends that are solos, then enter Nominal X1 (and Nominal X2 if it's a slant) plus the two measured sides. Tick Other Side if the solo must balance against the back piece it's connected to — PBGenie forms that mini-chain for you.
3
Build the Chain
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Lay the run the way you walk the part: edge → first bend → next bend → … → edge (From fills in from the previous row). For each segment enter its nominal and the two measured sides in B1's frame — AX1 is B1's X1 side, AX2 is B1's X2 side, for every segment. PBGenie derives the rest: which bend each segment forms, which segment is the overall, and where corrections feed. No boxes to tick.