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Chapter 4

Chapter 4. Drafting Media and Reproduction Methods. Introduction. Manual drawings Prepared on precut drafting sheets Contain printed graphic designs for company logo and information, borders, and title blocks Computer-aided drawings Created using a template

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Chapter 4

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  1. Chapter 4 Drafting Media and Reproduction Methods

  2. Introduction • Manual drawings • Prepared on precut drafting sheets • Contain printed graphic designs for company logo and information, borders, and title blocks • Computer-aided drawings • Created using a template • Contains a border, title block, and graphic designs for the company • Stored in files and reproduced on media

  3. Paper and Films • Factors influencing choice and use of manual drafting media: • Durability • Smoothness • Erasability • Dimensional stability • Transparency • Cost

  4. Paper and Films (cont’d.) • Vellum • Drafting paper specially designed to accept pencil or ink • Lead on vellum is the most common combination • Least expensive • Good smoothness and durability • Not as durable or stable as some materials

  5. Paper and Films (cont’d.) • Polyester film (trade name Mylar) • Plastic manual drafting material • More expensive than vellum • Excellent durability, erasability, dimensional stability, and transparency • Drawing is best accomplished using ink or special polyester leads

  6. Paper and Films (cont’d.) • Polyester film (cont’d.) • Single- or double-matte surface • Matte is a surface texture that is not glossy • Manual drafting is done on a matte surface • Double-matte has texture on both sides • Single-matte has a matte surface on one side and a slick surface on the other

  7. Title Blocks and Borders • Identifies the company that has made the drawings • Placed along the right side of the sheet • Borders are thick lines that surround the entire drawing • Zoning

  8. Title Block Information • Sheet Number • Company Information • Project or Client • Drawing Name • Address • Scale • Date • Drawn by • Checked by • Architect or Designer • Revisions

  9. Sheet Sizes, Sheet Format, Title Blocks, and Borders

  10. Media Types & Sizes • Grid Paper • Vellum • Bond Roll • Sheet sizes recommended by ANSI for Printers A 8 1/2 X 11 B 17 X 11 C 22 X 17 D 34 X 22 E 44 X 34 F 40 X 28 • Architectural Sheet sizes for plotters Arch A 9 × 12 Arch B 12 × 18 Arch C 18 × 24 Arch D 24 × 36 Arch E 36 × 48

  11. How to Fold Prints

  12. Reprographics • Diazo commonly known as “blue-prints” (Demo) • Ultraviolet light passes through a translucent drawing to expose chemically coated paper • Less expensive and less time-consuming • No longer cost effective • Red stamped plans from engineer • Electronic submission in Salt Lake County

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