In this example, you export a Stewart platform assembly from a Creo™ (Pro/ENGINEER®) CAD platform. The export procedure generates one XML file and a set of geometry files that you can import into Simscape™ Multibody™ to generate a new model.
The example begins with a procedure to export the CAD assembly. Information on CAD files and CAD Export follows the export procedure. To import the robot assembly into a Simscape Multibody model, see Import a Robotic Arm CAD Model (Simscape Multibody).
The following figure shows the Stewart platform assembly you export in this example.
To successfully complete this example, you must meet the following requirements:
Have the latest version of Simscape Multibody Link installed on your machine.
Have completed the linking procedure for your Creo installation. The linking procedure adds a Simscape Multibody Link add-in to the Creo installation.
Have access to the Stewart Platform example files that accompany the Simscape Multibody Link installation. See About the Example CAD Files.
Before you can export the robot assembly, you must load the assembly in a Creo session.
Open Creo on your machine.
Select File > Open
Navigate to the file directory that contains the robot CAD files.
The directory that contains the robot CAD files for the Creo platform is
The CAD platform opens the Stewart platform assembly.
Once you successfully open the CAD assembly in your Creo installation, you can export the assembly in format:
In the Creo toolbar, select Simscape Multibody Link > Export and click Simscape Multibody.
In the File name field of the Select Folder dialog box, enter select a directory to export the files into.
Do not enter a name in the File name field.
The field should contain only a dot
In the new dialog box, enter file name
click the green arrow.
Simscape Multibody Link generates a new XML multibody description file and a set of geometry files that you can import into a model.
You can proceed to import the robot assembly into a Simscape
The import model assumes the XML multibody description file you generated
in this example has the name
If the file has a different name, change the name to
proceeding. See Import a Robotic Arm CAD Model (Simscape Multibody).
Confirm the following files exist in the specified export directory:
The CAD assembly files are present in your Simscape Multibody Link installation. You can access the files in the following directory:
If you are not sure what your MATLAB root directory is,
at the MATLAB command line enter
matlabroot. MATLAB returns
the root directory for your installation.
\stewart directory contains a set of CAD files that define each CAD
part and CAD assembly. Part file names contain the file extension .PRT. Assembly
file names contain the extension .asm.
The CAD export procedure generates one XML multibody description file and a set of geometry files. The XML file contains the structure of the assembly and the parameters that define each part. The geometry files define the 3-D geometry of each part. Once the export procedure is complete, you can import the XML multibody description file into Simscape Multibody software. Simscape Multibody uses the file to automatically generate a new Simscape Multibody model.