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    5163

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    • 1: Chapter 1 Flat Pan
      This page details the construction of a flat pan template, specifying the necessary dimensions and layout. It highlights the overall size calculation (10” x 14”) based on inside dimensions (8” x 12”) and height (1”). The instructions guide the creation of a rectangular base and corner extensions for the edges, stressing the significance of accurate measurements between inside and outside dimensions to consider material thickness.
    • 2: Rectangular Sleeve
      This page outlines the creation of a chimney sleeve template for a 30° sloped roof, focusing on precise measurement transfer from views to a stretch-out drawing. It highlights consistency at seams and notes overall heights at specific points. Techniques for measuring these heights accurately are discussed, culminating in the final shape's dimensions and lines for sheet formation.
    • 3: Circumference and Bisecting Angles
      This page provides methods for calculating the circumference of pipes and round tubes using the formula Pi times the diameter. It stresses the significance of nominal measurements, offers resources for accurate dimensions, and emphasizes the need for element lines to improve template accuracy. Additionally, it introduces basic geometric concepts for dividing angles and circles, which are essential for crafting templates.
    • 4: 2 piece 90°
      This page details the creation of a template for a two-piece 90° elbow, highlighting the importance of landscape orientation and geometric principles, especially 45° angles. It outlines the process of drawing half the elbow, segmenting a half-circle, and developing element lines. It instructs on transferring measurements to a stretch-out template, aligning views, and marking connections, culminating in tracing the completed template onto the pipe for cutting.
    • 5: 3 Piece 90°
      This page describes how to create a template for a three-piece turn in piping. It highlights the necessity for extra cuts compared to a two-piece turn and details crucial steps including bisecting the joint, using the elbow center for measurements, and drawing reference half circles divided into equal parts. The template is refined by eliminating unnecessary lines before tracing and cutting the final pattern onto the pipe.
    • 6: Branch and Header Connections
      This page addresses alternative pipe connections in the piping industry, particularly when standard fittings are unsuitable. It explains the roles of "Header" (the main line) and "Branch" (the connecting line), with the possibility of the Branch being equal to or smaller than the Header. The page explores three connection templates and reviews tools from previous chapters on two and three-piece 90° turns to aid in these connections.
    • 7: Concentric 90° Branch on Header
      This page details the creation of a concentric 90° branch fitting, highlighting alignment of the branch and header on the same center line. It outlines steps for drawing the header pipe and branch connection with a focus on the outer diameter. Key procedures include creating a half-circle at the branch’s end, verifying sizes, and developing a stretch-out divided into equal spaces.
    • 8: Eccentric Branch
      This page details the procedures for creating eccentric and concentric branches, highlighting that eccentric branches require dividing the entire circle due to their off-center design. It outlines steps starting from the end view, considering the branch offset, to drawing the half circle and verifying stretch-out. The stretch-out is then divided into equal parts, with lines transferred for template creation, followed by removing unnecessary lines to finalize the template.
    • 9: 45 lateral branch
      This page provides detailed instructions for creating a template for a 45-degree lateral pipe fitting. It explains how to develop element lines through half circles on pipe ends, dividing them into equal parts, and connecting points between views. It highlights the need for consistent labeling and marking intersections, details the creation of a stretch-out divided into 160 equal spaces, and describes transferring lines at a 45° angle.

    This page titled Chapters was last modified on Sun, 25 Oct 2026 18:31:12 GMT and is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Marc Rose via source content that was edited to the style and standards of the LibreTexts platform.