2 types of constraints
a part defined by features
actual size
allowance
allowance
ansi drawing standards
b-spline curves
basic size
bezier spline curves
circles
clearance fit
common methods for specify the location& orientation of work pla
constraining the profile
constraints
construction geometry
duplication parts features
ellipse
engineering drawings vs. working drawings
engineering geometry
feature analysis
features from generalized sweeps
fit types
fully constrained profile
interference fit
interpolated spline curves
key innovation in 3d modeling
least material condition (lmc)
limits
line fit
lofting
logical decomposition of the part geometry
mass properties
maximum material condition (mmc)
nominal size
ordering fits with increasing level of contact
other useful tools in constraint based modeling
parameter & features
parent- child relationship
parts lists or bill of materials parts lists or bill of material
piece tolerance
planning
process of building
relational constraints
revolved forms
standards
sweep distance
system tolerance
the profile sketch
three basic types of assembly drawings
title blocks title blocks
tolerance
transition fit
working drawings
working drawings include
working drawings must working draw
world & local coordinates