ACM·3D
Studio

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Miura fold panel

The Miura origami fold: a grid of lozenges folded into chevrons, drawing rows of stepped cubes on the wall. One sheet, no slit: every vertex is developable. Adjustable chevron and tier count, angle and depth.

Open in the studio
The same pattern, drawn by the same engine: what is on screen is what goes to the machine.
Miura fold panel — 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
1,054.8 × 757 mm
Material
ACM 4 mm
Folds
120
Mark
miura

Fabrication data

Miura fold panel — at 900 × 600 mm in 4 mm ACM, this family unfolds into a 1,054.8 × 757 mm flat pattern with 120 folds, including 4,941 mm of groove machined from the visible face, with the sheet flipped for that pass. A 1,500 × 3,200 mm sheet holds 4 of them, for 39.3 % waste.

Developed size (flat pattern)1,054.8 × 757 mm
Material per panel
0.729 m²
Folds
120
Total groove length
14,138 mm
Cutting length
9,144 mm
Corner slits
23
Corner reliefs
16

V-grooves (apex angle)

  • 42.5°5,196 mm
  • 20.9°3,669 mm
  • 90°2,974 mm
  • 21.2°1,169 mm
  • 79.6°565 mm
  • 100.4°565 mm

Panels per sheet

  • 1,220 × 2,440 mm3(26.6 % waste)
  • 1,500 × 3,200 mm4(39.3 % waste)

DXF layers

  • CONTOUR9,144 mm
  • RAINURE_1355,094 mm
  • RAINURE_AVANT_135front face4,941 mm
  • RAINURE_902,974 mm
  • RAINURE_100565 mm
  • RAINURE_60565 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 mm900 mm
Height200 – 3,000 mm600 mm
Relief height5 – 80 mm30 mm
Chevrons across1 – 8 4
Tiers1 – 6 3
Chevron angle10 – 45 °30 °
Return depth0 – 200 mm40 mm
Fixing tabs—✓
Tab width10 – 60 mm20 mm

PresetsStepped cubesFine herringboneLarge lozenges

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. Around every interior vertex of the Miura, the four angles come in supplementary pairs: they add up to exactly 360°, which a flat sheet offers. No slit: folds closing a loop are checked, their two edges must coincide once folded. Valley folds go on the RAINURE_AVANT_* layer, machined face up.
  7. The chevron zigzag takes up height: the panel height must leave each row at least 40 mm once that zigzag is deducted. Fewer tiers, a gentler angle or more chevrons fix it.
  8. Depth stays under 70 % of a lozenge's shorter side (column width or row pitch). Deeper, lozenges stand so upright that their returns overlap in the pattern.

Further reading