Miter Cut Optimization with Nested Bevels

Frames, trusses, handrails, window profiles — wherever parts are cut at an angle, a wedge of material is left between two mitered ends and usually ends up as scrap. CuttingOpt.Pro arranges the parts so the bevels nest into each other, and shows you how much metal that saved.

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How nesting works

When two neighbouring parts have mitered ends with the same slope, the second one can start inside the “shadow” of the first. The length saved per joint is the profile height times the tangent of the angle — for HEA200 at 45° that is 190 mm. The optimizer picks the order and orientation of the parts on every bar and accounts for the kerf along the diagonal.

How to set the angles

Every part row has a ∠ icon. It opens a dialog with ready-made shapes (left miter, right miter, trapezoid, parallelogram), a field for any angle from 0 to 89° on each end, the cut direction and a to-scale preview of the part. The profile height is read from the name — HEA200, IPE120, 80x40 tube — or entered by hand.

Symmetric and asymmetric profiles

An I-beam, a tube or a flat bar can be rotated 180° so the bevels match — that is on by default. For an angle, T or Z profile you switch the rotation off for that part only, while the other parts keep nesting freely.

What you get

A bar-by-bar layout with the mitered parts drawn to scale, dashed lines at nested joints, stop positions for the saw and a “Saved by nesting” figure. In a sample job of 16 HEA200 parts (5 × 1200 mm with two 45° miters and 11 × 698 mm with one) nesting gave back 1,710 mm of profile. The same goes into the printed workshop document and the Excel export.

Frequently asked questions

Are miter cuts free?

Miter cuts with nesting are part of the Pro plan. Straight cutting is free — 10 cut plans a month after registration, printing included.

Which length do I enter — the long or the short side?

The long (outer) side of the part — the way the saw measures it. The short side is calculated from the angle and the profile height and is shown in the preview.

Can the two ends have different angles?

Yes — each end has its own angle and direction. A part can have 45° on the left and a straight cut on the right, or 30° and 60°.

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