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E112-L06 - Coggle Diagram
E112-L06
Dimensions
parallel
several dimensions from a common reference point
superimposed
reduce space used by using simple parallel dimensions
chain
used if function of object would not be affected by the accumulation of the tolerances
combined
both chain and parallel dimensioning
small features
place arrow heads outside the extension lines so that its easy to read
many features
radius
starts with 'R'
angles
circles , holes and arcs
circle=diameter
arc=radius
holes=centerlines
Tolerance
bilateral
allowed to vary in 2 directions from the specific dimensions. Both directions need not vary by same amount
unilateral
allowed to vary in one direction only
limit
the upper and lower limit are specified
calculate
tolerance=upper limit - lower limit
Assembly
multiple parts brought together to define a larger presentation