To Change Miter Cut Settings
1. Click > > 
Model Properties. The Model Properties dialog box opens.
Model Properties. The Model Properties dialog box opens.2. Under Sheetmetal, click change in the Miter Cuts line. The Sheetmetal Preferences dialog box opens.
3. Click Miter Cuts.
4. To change the miter cut width, type a new value in the box, or select Gap to create the miter cut with a width equal to the value set for the SMT_GAP parameter.
5. To change the value for the miter cut offset, type a new value in the box, or select 1.1 * Thickness.
6. Click Regenerate.