For the Inventor users who are utilizing a high resolution computer monitor such as a 4K Ultra HD monitor you will probably notice that your viewcube is very small and you would like to make it larger. Below I will step you through the process of modifying the settings that control the size of this interface element.
Step 1: Within the Tools tab select Application Options.
Step 2: Select the Display tab and choose ViewCube.
Step 3: Within the ViewCube Options underneath Display select the drop-down menu for ViewCube Size and select “Large”. Click “OK”.
Step 4: Click “OK” within the Application Options.
The image below shows the results of the changes that were made in the previous steps.