Façade cassettesfree

Diagonal-fold cassette

A single fold from corner to corner, protruding or re-entrant: two triangular facets. Rotated by quarter turns, the cassettes compose chevrons and lozenges.

Open in the studio
The same pattern, drawn by the same engine: what is on screen is what goes to the machine.
Diagonal-fold cassette — 2 × 2 panel wall, single panel and flat pattern — generated by the engine with the default parameters.
2 × 2 panel wall, single panel and flat pattern — generated by the engine with the default parameters.

ACM 3D Studio

Developed
776 × 576.6 mm
Material
ACM 4 mm
Folds
9
Mark
diagonal-fold

Fabrication data

Diagonal-fold cassette — at 600 × 400 mm in 4 mm ACM, this family unfolds into a 776 × 576.6 mm flat pattern with 9 folds, all grooved from the back: no pass on the coated face. A 1,500 × 3,200 mm sheet holds 8 of them, for 36.8 % waste.

Developed size (flat pattern)776 × 576.6 mm
Material per panel
0.379 m²
Folds
9
Total groove length
4,375 mm
Cutting length
2,607 mm
Corner reliefs
4

V-grooves (apex angle)

  • 90°1,664 mm
  • 84.3°1,194 mm
  • 86.2°796 mm
  • 13.7°721 mm

Panels per sheet

  • 1,220 × 2,440 mm6(23.6 % waste)
  • 1,500 × 3,200 mm8(36.8 % waste)

DXF layers

  • CONTOUR2,607 mm
  • RAINURE_903,654 mm
  • RAINURE_160721 mm

The names and colours your CAM software will show. RAINURE_AVANT: fold concave on the visible face, sheet flipped for that pass.

Computed by the engine at the default parameters, on 4 mm ACM and the reference router. Your own machine and material profiles change these values in the studio.

Parameters

ParametersRangeDefault
Width200 – 3,000 mm600 mm
Height200 – 3,000 mm400 mm
Fold height-150 – 150 mm40 mm
DiagonalBottom-left → top-right / Top-left → bottom-rightBottom-left → top-right
Return depth0 – 200 mm40 mm
Fixing tabs—✓
Tab width10 – 60 mm20 mm

PresetsProtruding ridgeRe-entrant fold

Manufacturing constraints

  1. The return must exceed the groove width plus half the bend deduction, or the groove eats into the return.
  2. Facet-to-facet folds are grooved with the smallest cutter of the profile, V left open: the angle is held by the geometry. The angle between two facets must not exceed that cutter’s apex angle.
  3. Vertical returns, all tabs flat in the −D plane (rail mounting). The facet-to-return fold is 90° ± slope: below 90°, the 90° cutter is left open and the return is held by the riveted tab; above 90° (facet descending towards the edge), a wider cutter (60° nominal = 120° apex) or the machine profile’s overfold tolerance is needed.
  4. Every raised vertex requires a V-slit to the edge (a flat sheet has 360°, the relief less). Near the vertex the slit is narrower than the contour tool: it is cut along its axis and the tool bites each facet by up to Ø/2.
  5. Tabs are shortened at every corner and every kink of the edge so they never collide behind the panel: by (return + 2 mm), and more on a sharp corner, where the bisector must be cleared (tab width ÷ tan(angle/2)). An edge too short gets no tab.

Further reading