4.5.3 Geometric tolerancing

In this exercise you'll learn about Smart-Modeling. Using it you can add tolerancing to e.g. shafts.

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Open the model boss, if you previously created it, and save it as passung according to the naming convention. Otherwise create the model passung and add a cylinder with the following dimensions to it:

Add two bosses, concentric on the flat surfaces of the cylinder, with the following dimensions:

(refer figure "Second boss added")

Using the file menu, activate "PMI"File -> PMI .

In the Tab PMI, select Rapid . The window Rapid Dimension opens. (refer figure "Rapid Dimension PMI")

Now, select the Element which you would like to tolearate.

In this Example, select the mantle of one of the bosses with the LMT within the 3D-View.

Place the Measurement in the 3D-view. It should be a diametral dimension, if not, change the Dropdown-menu "Method" from "Inferred" to "Diametral" in the window Rapid Dimension.

Close the window Rapid Dimension by pressing Close.

To now select a tolerance type, click the Measurement you just created with the RMB and select Settings.

The window Settings opens (refer figure "PMI Settings"). Now you can change the Tolerance using the Tab "Tolerance" on the left. Select the Type "Limits and Fits" in the upper Dropdown-menu.

You can now select the Deviation (Lage) k and the Grade (Größe) 6 in the Section "Limits and Fits" to define your Fitment. Subsequently, close the window.

The measurement now contains your specified tolerance.

You can always see present PMIs in the Contanier "PMI" within the Part Navigator (refer figure "Part Navigator with PMI")