These are some rules regarding technical sketches and CAD drawings in MEC222.
All of the following rules MUST be followed on ALL sketches. Failure to follow these rules will result in a significant grade reduction.
Refer to Chapter 5 of the textbook for more.
All manual drawings are done on blank (i.e. unlined) paper.
Draw a 1 cm border around your page. All writing/drawing must be within the border.
Proper Title Block
A proper title block is needed to identify the drawing, even if it is just a technical sketch.
Try to get as close as possible to engineering block.
Different line styles must be distinguishable.
The following figures come from Modern Graphics Communications, 5/e.
Principal views must be properly laid out.
Rule-of-thumb: the best front view is the view that (1) takes advantage of a part's “natural” bottom, and shows (2) the most interesting geometrical features and (3) the fewest hidden lines.
Rules for dimensioning have been moved to this Google Doc.