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(Extract the Macro files required for assembly analysis by GEOSTAR from ASSEMBLY.ZIP
and copy them into COSMOS/M directory. TheASSEMBLY.ZIP file is found in COSMOS/M
directory after installing COSMOS/M.)

A procedure for analyzing assemblies by GEOSTAR, that is fairly simple to perform if the number of
parts are few and the matingsurfaces are cylindrical or flat, is described below. It involves three steps
as follows:

(This procedure is not needed for SolidWorks assemblies, as the .geo file of the assembly
can beexported to GEOSTAR and meshed without any special requirements.)

1. In the CAD software, identify the mating faces between parts and use available editing tools to create
an imprint of themating faces on each adjoining part and then write Cosmos files (.GEO) of each one naming them P1.GEO, P2.GEO, P3.GEO, P4.GEO ……The idea of making imprints is illustrated on the following page for a Bolt and Washer assembly.
2. Copy the macro file ASSEMBLY.GEO from the COSMOS/M directory intothe current working
directory. Open GEOSTAR and create a new file by the name it P1 and then load the macro ASSEMBLY.GEO.
3. Map the coincident regions on all the mating faces using the RGMAPcommand for full mesh

Above three steps are described in more detail below.

Step 1
In Solid Edge right-click on the part to be modified in the Assembly Pathfinder and do Edit.Use ‘Cutout’ tools to make the imprints. As far as possible use the adjoining part profiles. After
making all the necessary imprints, save the assembly as a SAT file and open the SAT file assembly.This model will have all the parts positioned in the assembly coordinates. Now open each part and use
Save Copy As to save each file as P1.GEO, P2.GEO, P3.GEO . Use Options to set units.

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