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BNG 101 – Engineering Graphics
Slide Set 4 – Orthographic Projection II – Isometric Projection II and Drawing Views
(Read Planchard 2-21 to 2-26)
• Today – Isometric projection II, drawing views and dimensioning I
• Thursday, November 7 – Short quiz – isometric drawing – Dimensioning II – HW 3-1 assigned *due 11/19*
• Tuesday, November 12 – Tolerancing I – HW 3-2 assigned *due 11/19*
• Thursday, November 14 – Short quiz – tolerancing – Tolerancing II
• Tuesday, November 19 – Course evaluations – Exam review
Final Exam: Friday, November 22, 2:30-4:30pm
New Project Due Date: Tuesday, November 26 @ 5pm
Schedule for remaining classes
• Corrected HW 2 posted • Short quiz on isometric drawing - Thursday • Lab 4 – Lofts and Assemblies Mates tutorials –
has been posted on course website – Because these tutorials will be useful to develop skills
needed for project, you may do this on your own before next week
– Some rules • If completed on your own, it is ok not to come to lab next week, but
you MUST send me the deliverables for parts 1 and 3 before the start of the next lab
• The project progress update must be current through Sunday, November 18 (the day before the lab report due date), so please send me your complete lab report on Monday, November 19
Other announcements
Offset location measurements and rules of parallelism
• How would you locate point A in the isometric view?
Edges parallel to edges of the main block in the front and top view will be parallel to the same edges in the isometric drawing
Offset location measurements and rules of parallelism
How to draw a non-isometric line
How to draw a non-isometric line
Isometric sketch
How to draw a non-isometric line
Isometric sketch
How to draw a non-isometric line
Isometric sketch
Views to convey additional information
section view detail view
broken-out section view
Detail view
• A Detail View in general is used to create a new drawing view which is an enlarged of an existing view – Also called a removed view of greater scale
• The enlarged portion is enclosed using sketch geometry – usually a circle or other closed contour like a spline
Detail view
Detail view – dimension
Broken-out section view
• A broken-out view is used to cut away a portion of the assembly in a drawing view, expose the inside and add hatching
• Depth can be added
Broken-out section view
Break view
• Part of an existing (not a separate) view • Adds a break line to a selected view • Displays the drawing view in a larger scale or smaller sheet size
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