FlatPatternDev
iOS Universel / Utilitaires
FlatPatternDev is a fast, offline sheet metal flat pattern development calculator. Enter your part dimensions and instantly get the flat blank layout needed for fabrication.
WHAT IT CALCULATES:
Cones:
- Flat blank inner and outer radius
- Blank arc angle
- Blank arc length
- Developed (flat) blank dimensions
Cylinders:
- Circumference and blank width
- Flat blank length and height
- Material allowance for seams
Elbows:
- Multi-piece elbow segment patterns
- Gore dimensions for each segment
- Throat and heel radius calculations
KEY FEATURES:
- Imperial (in) and Metric (mm) unit support
- Cone, cylinder, and elbow pattern types
- Adjustable wall thickness and seam allowance
- Instant results as you type
- Clean, easy-to-read layout
- Works completely offline
- No account or login required
BUILT FOR THE SHOP FLOOR:
Whether you are a sheet metal worker, HVAC fabricator, or mechanical estimator, FlatPatternDev gives you accurate blank dimensions for cutting and rolling. Enter your finished part geometry and get your flat layout in seconds.
Calculations follow standard sheet metal development methods for right circular cones, cylinders, and segmented elbows.
