The following settings are recommended up to Pro/ENGINEER Wildfire 5.0 / Creo Parametric 3.0 and CoCreate Modeling 16.5.
Pro/ENGINEER – System
- From the view of data exchange it is recommended to create models in Pro/ENGINEER with absolute accuracy from the beginning. The values should be 0.01mm or smaller.
- The setting enable_absolute_accuracy yes needs to be included in configuration file config.pro.
- There should be no layer named "255".
- Components of an assembly should have names no longer than 16 characters.
- To export mixed model structures, each model type should be saved as one part and transferred in assembly mode.
- To reduce the neutral file size (save time at import) use "Shrinkwrap functionality" or "Simplified Representation".
- Before export, check for highlighted menu option Info -> Geometry Checks for design problems. In Creo Parametric use File -> Prepare -> ModelCheck Geometry Check. Indicated features are likely to cause problems in the target system.
- Delete all non-referenced geometry and external reference. Do not use any suppressed construction geometry (activate all layers).
- If the model was created with relative accuracy, a conversion to its corresponding absolute accuracy might point out design problems.
- Force regeneration by selecting: Set Up -> Accuracy -> Absolute -> Enter value or, in Creo Parametric, File -> Prepare -> Model Properties.
- It is recommended to define therefore a specific start model.
Pro/ENGINEER / Creo Elements - STEP Preprocessor
- Some STEP specific settings can be added to the configuration file config.pro:
- With File -> Options -> Configuration Editor you can add the below mentioned settings in CREO Elements
- With Tools -> Options... you can add the below mentioned settings in Pro/ENGINEER Wildfire 1.0, 2.0 and 3.0.
- With Utilities -> Options... you can add the below mentioned settings in Pro/ENGINEER 2001.
- With Utilities -> Preferences... you can add the below mentioned settings in Pro/ENGINEER 2000i².
- The default setting for STEP export is AP203. For AP214 export the following setting needs to be added to the Pro/ENGINEER configuration file config.pro:
- STEP_EXPORT_FORMAT AP214_IS
- Other recommended config.pro options are:
- intf3d_out_default_option solid
- intf3d_out_extend_surface yes
- intfd_out_blanked_entities no
- To export a STEP File:
- In Pro/ENGINEER 2001 and Pro/ENGINEER Wildfire and CREO Elements first select File -> Save a Copy... and then as Type choose STEP (*.stp). If not added in the config.pro yet, please select then Solid or Shell (for surface models) depending on the model type. The options Surface (default) and Wireframe should not be used.
- In Pro/ENGINEER 2000i² first select File -> Export -> ExportOpts and then choose STEP. If not added in the config.pro yet, please select then Solid or Shell (for surface models) depending on the model type. The options Surface (default) and Wireframe should not be used.
- If exporting an Assembly, choose Single File as File structure.
- In the Options for Pro/ENGINEER STEP Export choose "Solids" and "Shells". The Single Option "Solids" exports only exact Pro/ENGINEER solids, shells and surface will not be exported.
- To reduce file size (large STEP files cause often conversion problems because of memory limitations) export as multi STEP files with external references if post-processor supports this technology (very good results exporting to CATIA V5).
- An adjustment of the STEP file is not necessary.
OneSpace Designer - STEP Postprocessor
- The properties for STEP import can be found in the file -> open -> options dialog
- Set the accuracy to automatic (default) to use the accuracy of the STEP file.
- If the accuracy is customized, make sure that the accuracy setting is the same or less than the accuracies setting used to generate the part being loaded.
- When associated messages are returned during the import of the STEP file the accuracy should be adjusted.
- If a product with multiple bodies is imported, Solid Designer creates an assembly.
- Blended edges are not recognized as such, and it is not possible to modify blends using standard OneSpace Designer.
- The import log file "step_load_log" gives further information.
OneSpace Designer – System
- Shaded view is helpful and gives a first impression of the model quality.
- To ensure the model quality is OK a complete model check should be performed.