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lesson 6 of engineering design - Coggle Diagram
lesson 6 of engineering design
dimension
explanation
adding measurement annotation to a drawing
function
Sketch dimension
2D drawing dimension
how to dimension
dimension text
tolerance
it allows the dimension to be offset by a little bit
dimension line
extension line
extension line offset
type of dimensioning
parallel dimensioning
all parallel
superimposed running dimensioning
simplify parallel dimensions
chain dimensioning
all connected in a straight line
combined dimensioning
dimensioning small features
arrowhead can be place outside
dimensioning of multiple features
N*dimension
dimensioning of radius
the curve dimension
dimensioning of circle, arc, and hole
dimensioning angles
angle dimensioning
Rule of dimensioning
don't repeat the dimension
avoid dimension to hidden line
dimension should not cross one another
tolerance
function
adding tolerances to dimensions in drawing
adding tolerances to the model
creating user parameters for tolerance
to add tolerance in fusion we can:
double click to state the tolerances
tolerance is important because:
it will not be realistic
different manufacturing method has different degree of tolerance
Tolerance ensures good quality control for parts from different companies
Tolerance will ensure that mating parts of an assembly interface and fit well.
types of tolerance
Bilateral Tolerance
allowed to vary in two directions from the specified dimension
Unilateral Tolerance
allowed to vary in only one direction
Limit Tolerance
the upper and lower limits of the dimension are specified
calculation
tolerance=Upper limit – Lower Limit
assemblies
collection of components that function as a single design
function
Creating and Managing Components
Applying Constraints and Joints
types of joint
rigid
revolute