MSC Nastran Thermal > Getting Started - A Guided Exercise > 2.7 Modify the Mesh (Reduce the Number of Elements)
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2.7 Modify the Mesh (Reduce the Number of Elements)
At this point, we will invoke Patran's undo feature so that we can make a coarser mesh. The mesh we have just created (300 elements) is excessive for our example.
Table 2-1
STEP 1: Click on the erasure icon at the top right corner of the Patran main form. The word undo will appear, and Patran will automatically delete the created mesh (the last specified action).
STEP 2: Click on the paintbrush icon. The words Refresh Graphics will appear, and the geometric surface will be regenerated exactly as it appeared before we applied the mesh.