BNG 101 – Engineering Graphics
Slide Set 4 – Orthographic Projection II –
Isometric Projection II and Drawing Views
(Read Planchard 2-21 to 2-26)
Schedule for remaining classes
• 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
Other announcements
• 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
Offset location measurements and rules of
parallelism
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
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