Technical Drawings

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Technical Drawings
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Technical Drawings
Working Drawings A set of engineering drawings
for the purpose of production and
communicating the design to others.

• Shop Drawings (detail drawings) Two dimensional
  multiview drawings of each component for the
  purpose of fabrication.
• Assembly and Subassembly Drawings three
  dimensional drawings showing all parts assembled.
  Parts list or a bill of materials (BOM) should be
  included.
• Exploded View Drawings three dimensional
  drawings showing how parts should be assembled.

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Multiview Standard Drawings 2D views

• Draw at least two orthographic views, three views
  are common.
• Select the most descriptive view as the front
  view.
• Select the sequence of views with the fewest
  hidden lines.
• Leave adequate room between the views for
  dimensions and notes.
• Show all lines visible, hidden and centerlines.
• Dimension all features, avoid over dimensioning.
• Include notes to provide more information.
• Specify material and heat treatment if required.
• Include a standard title block. Title block
  should include name, project name, part number,
  date, scale, units, material, surface roughness,
  revision, ..

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2D Technical Drawing - Example
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Assembly Drawings
Normally no dimensions are given in the assembly
drawings
Geneva wheel
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Exploded View
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Assembly and Exploded Views
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Sectioned Assembly and Exploded Views
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Flow Lines for Exploded Views
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Pictorial Shaded Exploded Assembly Drawing
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Pictorial Shaded Assembly Drawing
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Pictorial Shaded Assembly Drawing
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Pictorial Shaded Assembly Subassembly Drawing
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Pictorial Shaded Exploded Assembly Drawing
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Pictorial Shaded Assembly Drawing
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Pictorial Shaded Exploded Assembly Drawing