dimensions, tolerances and assemblies
types of dimensions
parallel
superimposed running
chain
combined
dimensioning small features
dimensioning of multiple features
dimensioning of radius
dimensioning of circle, arc and hole
dimensioning angles
types of tolerance
bilateral tolerance
unilateral tolerance
limit tolerance
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calculating tolerance
calculating tolerance
tolerance = upper limit - lower limit
clearance fit
interference fit
In clearance fit, there would still be an allowance for two parts to move
In interference fit, it would be difficult to move the two interfacing parts. Usually, a lot of force is needed to remove the two parts.