Sectional View - Motivation MTS 242 - Computer Aided...

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MTS 242 - Computer Aided Drawing (Fall 2009) Motivation
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MTS 242 - Computer Aided Drawing (Fall 2009) Motivation
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MTS 242 - Computer Aided Drawing (Fall 2009) Motivation
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MTS 242 - Computer Aided Drawing (Fall 2009) Introduction A sectional view represents the part of an object which remains after a portion has been removed. Used to show hidden shape or form Will help to clarify what would normally be shown as hidden detail Only solid material being cut is sectioned The section is obtained by cutting the component into two parts at some good points Sectioning symbol or hatching should be used to indicate the part that has been cut.
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MTS 242 - Computer Aided Drawing (Fall 2009) Types Longitudinal Section – Lengthwise Cross Section – cross wise FULL HALF (half way across a symmetric object) BROKEN (partial, when a full and half section is not needed) REVOLVED (REMOVED) OFFSET ALLIGNED THIN
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MTS 242 - Computer Aided Drawing (Fall 2009) How To? Part is CUT with an imaginary plane.
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MTS 242 - Computer Aided Drawing (Fall 2009) How To?
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MTS 242 - Computer Aided Drawing (Fall 2009) How To? - Section Example Notice how the cutting plane is indicated. Notice how the cut material is shown. Sectional view label
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MTS 242 - Computer Aided Drawing (Fall 2009) Lines Used in Section Views Cutting Plane Line: Used to show where the object is being cut. (Phantom line type)
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MTS 242 - Computer Aided Drawing (Fall 2009) How To? - Lines Used in Section Views Shows where the part  is being cut. Arrows point to the  portion being kept. Section Lines
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MTS 242 - Computer Aided Drawing (Fall 2009) Lines Used in Section Views Section Lines: Section lines are used to indicate where the cutting plane cuts the material. Section lines are thin lines. Section line symbols are chosen according to the material of the object Section lines are generally drawn at a 45 ° angle.
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MTS 242 - Computer Aided Drawing (Fall 2009) Introduction - Hatching Thin continuous line. Drawn at 45° to the horizontal, in either the right or left direction.
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MTS 242 - Computer Aided Drawing (Fall 2009) Material Symbols Figure 7.33 (ANSI Standard) Page 169
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MTS 242 - Computer Aided Drawing (Fall 2009) Adjacent Parts
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MTS 242 - Computer Aided Drawing (Fall 2009) How To? - Summary Section cutting planes are denoted by chain line Arrowheads indicate the direction of viewing The section view is identified by 'SECTION A-A'
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MTS 242 - Computer Aided Drawing (Fall 2009) How to? - Example.
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Sectional View - Motivation MTS 242 - Computer Aided...

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