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Introduction to Model Based Definition with Creo Parametric 7.0
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Creating a STEP AP203 File from Creo Parametric

A STEP AP203 Edition 2 file enables an enterprise to exchange Process and Manufacturing Information, PMI, between different CAD and Computer Aided Manufacturing (CAM) systems.

  • STEP is an international standard.

  • Confirm asymmetrical tolerances set to mid-spec.

  • File > Save As > Save a Copy

  • Select STEP (*.stp) from the Type drop-down list.

  • Set STEP export options. Application protocol ap203_e2

  • Config option: step_export_format = ap203_e2

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Figure 1 - Saving a Copy

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Figure 2 - Specifying the STEP Type

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Figure 3 - Viewing STEP Export Profile Settings

Creating a STEP AP203 File from Creo Parametric

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Figure 1 - Saving a Copy

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Figure 2 - Specifying the STEP Type A STEP file is an international standard. STEP is an acronym for STandard for the Exchange of Product Model Data. The default STEP file you can export from Creo Parametric is the AP203 IS. To create the specific STEP AP203 Edition 2, you can set the configuration option step_export_format to ap203_e2 or you can select ap203_e2 from the Application protocol types drop-down list in the STEP Export Profile Settings profile editor.

A STEP AP203 E2 file enables an enterprise to exchange Process and Manufacturing Information, PMI, between different CAD systems. PMI includes dimensions, geometric tolerances, datum tags, surface finishes, weld symbols, and flag notes. A STEP file contains the PMI, and both the view state and layer state combined states are preserved. The STEP file is secondary content for the Technical Data Package, and is typically used by manufacturing.

Before saving the STEP, confirm that you have model items with asymmetrical tolerances set to mid-spec, assuming this is company standard. Display all dimension tolerances as desired. Once confirmed, save a STEP file from Creo Parametric by clicking File

Save As Save a Copy. Select STEP (*.stp) from the Type drop-down list.

STEP File Options

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Figure 3 - Viewing STEP Export Profile Settings

You can specify additional options when saving a STEP file by clicking Options before saving the file. The STEP Export Profile Settings profile editor will appear and you can specify the following options:

  • Application protocol — Specifies the STEP application protocol for the export

  • Model Preferences — Specifies the representation of the exported part model and the file structure of the exported assembly models.

  • The Include section lets you specify whether of not to export: annotations, datums, quilts, facets, hidden entities, cable surfaces or parameters.

  • The Advanced section lets you specify more options to export such as: Material definition

  • Geometry and entity preferences

  • Assembly component preferences

Before saving the file, you can also select the Customize Export check box. When you click OK to save the file, an additional Export STEP dialog box appears that allows you to customize what layers or specific coordinate system to export.

Creating a STEP AP203 File from Creo Parametric

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MBD\TDP_STEP

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Steps

  • Task 1. Export a STEP AP203 E2 file from Creo Parametric. Disable all Datum Display types.

  • Click File > Save As > Save a Copy .

  • In the Save a Copy dialog box, select STEP (*.stp) from the Type drop-down list. Click Options .

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  • In the STEP Export Profile Settings dialog box, select ap203_e2 from the Application protocol types drop-down list.

  • Select the Annotations check box from the Include section. Figure

  • Expand the Advanced node. Notice the additional settings that can be used for the export file.

  • Click OK > OK .

  • Notice that the Message Log informs you that the STEP file was generated. Figure