Façade cassettespro
Perforated trapezoidal prism
Narrow raised plateau between two long trapezoidal slopes, facets perforated as a triangular truss. Height, plateau width and hips are adjustable.
Open in the studio
ACM 3D Studio
- Developed
- 718.8 × 564.7 mm
- Material
- ACM 4 mm
- Folds
- 12
- Mark
- prism-truss
Fabrication data
Perforated trapezoidal prism — at 600 × 400 mm in 4 mm ACM, this family unfolds into a 718.8 × 564.7 mm flat pattern with 12 folds, all grooved from the back: no pass on the coated face. A 1,500 × 3,200 mm sheet holds 10 of them, for 34.6 % waste.
- Material per panel
- 0.314 m²
- Folds
- 12
- Total groove length
- 4,424 mm
- Cutting length
- 11,214 mm
- Corner slits
- 4
V-grooves (apex angle)
- 90°1,664 mm
- 39.8°1,200 mm
- 77°800 mm
- 13°600 mm
- 50.2°160 mm
Panels per sheet
- 1,220 × 2,440 mm6(36.7 % waste)
- 1,500 × 3,200 mm10(34.6 % waste)
DXF layers
- CONTOUR11,214 mm
- RAINURE_901,664 mm
- RAINURE_1351,200 mm
- RAINURE_100800 mm
- RAINURE_160600 mm
- RAINURE_120160 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
| Parameters | Range | Default |
|---|---|---|
| Width | 200 – 3,000 mm | 600 mm |
| Height | 200 – 3,000 mm | 400 mm |
| Relief height | 5 – 200 mm | 60 mm |
| Plateau width | 30 – 600 mm | 80 mm |
| Hips (top and bottom) | 0 – 400 mm | 50 mm |
| Return depth | 0 – 200 mm | 40 mm |
| Fixing tabs | — | ✓ |
| Tab width | 10 – 60 mm | 20 mm |
| Perforated facets | — | ✓ |
| Perforation pattern | Triangulated truss / Frame: one opening per facet | Triangulated truss |
| Truss density | 1 – 4 | 2 |
| Bar width | 8 – 80 mm | 18 mm |
| Solid margin at folds | 10 – 100 mm | 22 mm |
PresetsPerforated prismSolid prism
Manufacturing constraints
- The return must exceed the groove width plus half the bend deduction, or the groove eats into the return.
- 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.
- 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.
- 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.
- 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.
- Truss bars must exceed the contour tool diameter and the fold margin must cover the groove width: a hole smaller than the tool is reported, not machined.