Master practical pattern drafting for sheet metal work with this classic guide.
This book teaches hands-on methods for creating accurate patterns using parallel and radial line developments, with step-by-step instructions that apply to piping, elbows, skylights, and other common metal forms.
The book covers essential techniques for converting plan and elevation views into flat patterns, explains how to measure and transfer lengths, and shows how to handle complex, multi-piece assemblies. It includes guidance on calculating true lengths, using protractors, and developing patterns for a variety of shapes—from elbows to domed and curved surfaces—so workers can draft usable patterns ready for fabrication.
- Learn parallel line development, including how to find the true girth and lay out measurements on the stretch-out line.
- Create patterns for one-piece and multi-piece elbows, with methods that adapt to any angle.
- Explore radial line developments for cones, cylinders, pyramids, and related forms, plus rules for true lengths and base patterns.
- Apply practical steps to skylights, tubs, and other common sheet metal components, including how to compute lengths of bars and other elements.
Ideal for metalworkers, pattern cutters, and students in trade education who want clear, actionable guidance for drafting accurate metal patterns.