ACM·3D
Studio

Façade cassettespro

Trapezoidal plateau cassette

A raised plateau whose top and bottom edges differ in width: the flanks slant in plan and the relief takes a direction, like a buttress. Adjustable widths, height and position; the top and bottom slopes stay planar, the flanks fold into two facets each.

Open in the studio
The same pattern, drawn by the same engine: what is on screen is what goes to the machine.
Trapezoidal plateau 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
642.7 × 884.4 mm
Material
ACM 4 mm
Folds
14
Mark
trapezoid-plateau

Fabrication data

Trapezoidal plateau cassette — at 500 × 750 mm in 4 mm ACM, this family unfolds into a 642.7 × 884.4 mm flat pattern with 14 folds, including 483 mm of groove machined from the visible face, with the sheet flipped for that pass. A 1,500 × 3,200 mm sheet holds 6 of them, for 33.9 % waste.

Developed size (flat pattern)642.7 × 884.4 mm
Material per panel
0.529 m²
Folds
14
Total groove length
7,093 mm
Cutting length
5,821 mm
Corner slits
4
Corner reliefs
1

V-grooves (apex angle)

  • 90°2,164 mm
  • 17.3°1,172 mm
  • 70°751 mm
  • 57.7°750 mm
  • 78.7°503 mm
  • 49.4°500 mm
  • …

Panels per sheet

  • 1,220 × 2,440 mm3(46.7 % waste)
  • 1,500 × 3,200 mm6(33.9 % waste)

DXF layers

  • CONTOUR5,821 mm
  • RAINURE_902,164 mm
  • RAINURE_1001,254 mm
  • RAINURE_1201,250 mm
  • RAINURE_1601,246 mm
  • RAINURE_135696 mm
  • RAINURE_AVANT_160front face483 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 mm500 mm
Height200 – 3,000 mm750 mm
Relief height5 – 150 mm60 mm
Top edge width10 – 95 %62 %
Bottom edge width10 – 95 %34 %
Top slope20 – 600 mm70 mm
Bottom slope20 – 600 mm300 mm
Return depth0 – 200 mm40 mm
Fixing tabs—✓
Tab width10 – 60 mm20 mm

PresetsButtressInverted trapezoidHigh plateau, long bottom slope

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. The top and bottom slopes leave at least 60 mm of plateau; otherwise they are scaled down proportionally.
  7. The two plateau edges must differ in width: at equal widths the plateau is a rectangle, and the truncated pyramid cassette is the right one — its flanks then stay planar, with no extra fold.

Further reading