ACM·3D
Studio

Façade cassettespro

Twin diagonal slope cassette

A fold crosses the cassette from corner to corner and splits it into two half-triangles; each half rises into a three-facet pyramid around its own apex. Two slopes separated by a clean valley, six facets, one slit per apex. The most widespread relief pattern on ACM façades.

Open in the studio
The same pattern, drawn by the same engine: what is on screen is what goes to the machine.
Twin diagonal slope 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
775.1 × 730.9 mm
Material
ACM 4 mm
Folds
13
Mark
diagonal-twin-apex

Fabrication data

Twin diagonal slope cassette — at 600 × 600 mm in 4 mm ACM, this family unfolds into a 775.1 × 730.9 mm flat pattern with 13 folds, including 849 mm of groove machined from the visible face, with the sheet flipped for that pass. A 1,500 × 3,200 mm sheet holds 8 of them, for 16.5 % waste.

Developed size (flat pattern)775.1 × 730.9 mm
Material per panel
0.501 m²
Folds
13
Total groove length
7,110 mm
Cutting length
4,579 mm
Corner slits
2
Corner reliefs
2

V-grooves (apex angle)

  • 73.4°2,394 mm
  • 90°2,064 mm
  • 36.8°1,803 mm
  • 46.4°849 mm

Panels per sheet

  • 1,220 × 2,440 mm3(49.5 % waste)
  • 1,500 × 3,200 mm8(16.5 % waste)

DXF layers

  • CONTOUR4,579 mm
  • RAINURE_1002,394 mm
  • RAINURE_902,064 mm
  • RAINURE_1351,803 mm
  • RAINURE_AVANT_120front face849 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 mm600 mm
Relief height15 – 150 mm60 mm
Splitting diagonalBottom-left to top-right / Top-left to bottom-rightBottom-left to top-right
Apex position12 – 70 %33 %
Return depth0 – 200 mm40 mm
Fixing tabs—✓
Tab width10 – 60 mm20 mm

PresetsTwo slopesDeep reliefOpposite diagonal

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.
  6. At 33 %, each apex sits on the centroid of its half-triangle: the three facets of the slope then share one inclination. Closer to the diagonal the slope leans into the valley; closer to the corner it stands up.

Further reading