Façade cassettespro

Perforated fan cassette

The pleated fan, its facets drilled with small circles in a staggered pattern: the relief keeps its shadows, the perforation lets light through. Diameter, pitch, pattern and gradient adjustable; holes too close to a fold or an edge are removed and reported.

Open in the studio
The same pattern, drawn by the same engine: what is on screen is what goes to the machine.
Perforated fan 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
761.9 × 533 mm
Material
ACM 4 mm
Folds
18
Mark
fan-perforated

Fabrication data

Perforated fan cassette — at 600 × 400 mm in 4 mm ACM, this family unfolds into a 761.9 × 533 mm flat pattern with 18 folds, including 1,168 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 40.4 % waste.

Developed size (flat pattern)761.9 × 533 mm
Material per panel
0.358 m²
Folds
18
Total groove length
5,777 mm
Cutting length
3,101 mm
Corner slits
3
Corner reliefs
7
Drill holes
919

V-grooves (apex angle)

  • 90°1,612 mm
  • 25.4°721 mm
  • 17.9°633 mm
  • 81.5°596 mm
  • 23.9°567 mm
  • 19°447 mm
  • …

Panels per sheet

  • 1,220 × 2,440 mm6(27.9 % waste)
  • 1,500 × 3,200 mm8(40.4 % waste)

DXF layers

  • CONTOUR3,101 mm
  • RAINURE_902,411 mm
  • RAINURE_60998 mm
  • RAINURE_AVANT_135front face721 mm
  • RAINURE_160633 mm
  • RAINURE_135567 mm
  • RAINURE_AVANT_160front face447 mm
  • PERCAGE× 919

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
Relief height5 – 150 mm30 mm
Fold originBottom-left corner / CentreBottom-left corner
Number of pleats3 – 12 5
Centre extra height0 – 200 mm10 mm
Return depth0 – 200 mm40 mm
Fixing tabs—✓
Tab width10 – 60 mm20 mm
Circular perforation—✓
Perforated facetsMain facet / AllAll
PatternGrid / StaggeredStaggered
Pitch8 – 120 mm14 mm
Largest diameter2 – 60 mm5 mm
Smallest diameter1 – 60 mm3 mm
Diameter gradientNone / Linear / Radial / By available spaceNone
Gradient direction0 – 360 °45 °
Invert (large holes at the edge)——
Solid margin5 – 100 mm12 mm

PresetsSmall circles Ø 5Very fine Ø 3, denseGradient in each pleatFrom the centre, 8 pleats

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. Holes at the given pitch: the largest hole is reduced to keep at least the contour tool diameter of material between neighbours; every hole fits inside the facet minus the margin. Holes smaller than the contour tool are drilled (PERCAGE layer).
  7. The edge margin must cover half the bend deduction (the fold axis moves into the facet) plus half the widest groove, or a hole bites into the V-groove.
  8. Holes stay inside their facet, clear of grooves and edges: towards the origin of the pleats, where the facets narrow, they are removed — never silently, every removed hole is counted. Fewer pleats or smaller circles keep more of them.

Further reading