Tolerances, Engineering Design & Limits & Fits
Geometric Dimensioning & Tolerancing Training
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Three Mating Features GD&T Tolerance Analysis at MMC Calculator
This calculator calculates position tolerances utilizing principles and concepts withinASME Y14.5-2009 and ASME Y14.5M - 1994, Geometric Dimensioning and Tolerancing (GD&T).
For the equations behind this calculator, see:
"Geometric Boundaries"
Interpretation and Application of
Geometric Dimensioning and Tolerancing
Open:
Three Mating Features GD&T Tolerance Analysis at MMC Calculator
See application at bottom of page.
This calculator will calculate the required field for the given condition. Calculations
are based on a line-line case. Features of size may be other than
shaft-hole. Similar features of size such as rectangular shapes may
require tolerance specification/calculation along different datum plane.
**Note: As the datums depart from MMC, the datum gets a bonus tolerance. The tolerance zones for the individual features may move off center of the datum
by 1/2 the datum bonus tolerance. However, the two tolerance for the two holes
must stay inline as a pattern and the same applies for the two external
diameters. Four (6) inputs
are required.
See the application illustration at bottom of page. The following are definitions for the elements: Hole Feature H1- This is the smallest hole
(MMC) or similar other feature of size. Hole Feature H2- This is the smallest hole (MMC) or similar other feature of size. Hole Feature H3- This is the smallest hole (MMC) or similar other feature of size. Hole Tolerance TOL_h2
- This is the positional tolerance for the given feature of size. Hole Tolerance TOL_h3
- This is the positional tolerance for the given feature of size. Shaft Feature D1- This is the largest shaft (MMC) or similar other feature of size. Shaft Feature D2- This is the largest shaft (MMC) or similar other feature of size. Shaft
Feature D3- This is the largest shaft (MMC) or similar other feature of size. Shaft
Tolerance TOL_d2
- This is the positional tolerance for the given feature of size. Shaft
Tolerance TOL_d3
- This is the positional tolerance for the given feature of size.
Open:
Three Mating Features GD&T Tolerance Analysis at MMC Calculator
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