Lecture 5 Flashcards
what is an orthographic projection?
a collection of 2-D drawings that work together to give an accurate overall representation of an object.
what is another name for projectors?
rays
projectors are _____ to each other and _____ to the plane of projection
parallel
perpendicular
What are the three conventional views?
right view, front view and top view
define necessary views?
when the number of views needed in less thsn the three conventional views you are showing necessary views
front view should be the view with the fewest ____ ____.
hidden lines
Should ribs be revolved to show true shape or left as is to show true position?
they should be revolved to show true shape
What pencil should you use for a thick line weight?
HB
What pencil should you use for a then line weight?
2H
What pencil should you use for drawing projectors?
4H
What does a hidden line look like?
What does a center line look like?
______ __ ______ __ ______
Should you always use centerlines to show the center of a circle and axis of symmetry?
YESSSSS
Do you extend hidden lines past the edge of an object?
no
do you extend centerlines past the edge of the object?
yes
