📐 Sheet Metal Layout

Professional flat pattern development tools for pipe fitters and fabricators. Generate precise cutting templates with real-time 3D visualization. Print at 1:1 scale for workshop use.

🔧 Pipe Notching 🐟 Fish Mouth Cut 📐 Cylinder-Plane 🔄 Mitered Elbow 🔺 Straight Cone 🖨️ 1:1 Print

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Flat Pattern Development Tools

Select a calculator to generate accurate cutting templates

🔧 Pipe Notch / Branch Connection

Perpendicular (90°) and oblique (0-60°) pipe-to-pipe intersections. Calculate fish mouth profiles for branch connections with optional lateral offset.

Saddle Cut 90° Oblique 0-60° Fish Mouth Template 3D Preview

BETA

📐 Cylinder-Plane Intersection

Visualize pipe cut by one or two oblique planes. See the Triouleyre formulas in action. Real-time flat pattern development with generator lines.

Single/Double Plane Triouleyre Formulas Flat Pattern 3D View

NEW

🔧 Mitered Elbow (Segmented)

Segmented elbow construction with 2-40 sectors. Real-time 3D view with sector development. Supports 15°-360° angles for elbows and complete torus.

2-40 Sectors DN15-DN1200 15°-360° Angle 4 Languages

NEW

🔺 Straight Cone (Truncated)

Truncated cone flat pattern development. 3D visualization with real-time coordinate calculation. Supports offset and inclination.

FR/EN Bilingual DXF Export 1:1 Printing 3D Preview

NEW

🔷 Square to Round Transition

4-piece rectangular to round transition layout by triangulation. Real-time 3D view with flat pattern development for each quarter piece.

FR/EN Bilingual Triangulation DXF Export 3D Preview

NEW

1:1 Scale Printing

Print cutting templates at actual size. Wrap around your pipe and cut directly. No scaling required.

Real-Time 3D

Interactive 3D visualization. Rotate, zoom, and inspect your cuts from any angle before fabrication.

Triouleyre Formulas

Based on classic sheet metal layout mathematics. View detailed formulas for each generator line.

25 Years Experience

Built by an industrial pipe fitter with real workshop experience. Designed for practical fabrication needs.