Inventor is a computer software used to create, assemble and test parts. You create parts through the use of sketches. You can then assemble these parts to test them before you ever actually create them. This is extremely useful for creating and testing new ideas without having to make the invention.
Widget #1
Step 1: Start New Sketch
Step 2: Select the YZ coordinate plane
Step 3: Draw a .5 inch line to start the base of the widget.
Step 4: Complete the base by using the line tool.
Step 5: Finish the sketch
Step 6: Use the extrude tool to extrude the base 1 inch to complete the widget.