Before designing your model, you need to select a system of units in which Pro/ENGINEER stores all data in the database. You can use the Pro/ENGINEER Units Manager menu to select a system of units for your Mechanica model.

If you do not define a system of units, Pro/ENGINEER uses a default system of units—inch pound-mass second (inch lbm second).

You can select from a predefined system of units, create a custom system of units, or set a default system of units for your model.

You can learn more about units by reviewing these references:

Predefined systems of units or custom systems of units — See Systems of Units Management.

Setting a default system of units — See the discussion of pro_unit_sys in Configuration File Options.

Unit conversion tables and other units tables — See Unit Conversion Tables. The Pro/ENGINEER default, inch pound-mass second (inch lbm second), is not a standard system of units, and thus is not described in the tables.

Return to Simulation Modeling Techniques and Prerequisites or Changing Configuration Settings.

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