Step 1: Start CATIA
Step 2: Select FILE >> NEW (or select the New icon on the toolbar)
Step 3: Select PART on the New dialog box’s list of available work benches then pick OK
(NOTE: If you receive an addtional New Part dialog box, check the Do not show this dialog atstartup option then select )
.Step 4: Select TOOLS >> OPTIONS on the menu bar to open the Options dialog boxThe Options dialog box is used to customize a variety of CATIA’s workbench options.Step
5: Under GENERAL, select the PARAMETERS AND MEASURE option
Step 6: Select the Units tab then set your unit’s length value to inch(in)
Step 7: On the Options dialog box under MECHANICAL DESIGN, select SKETCHER