Connect each part shown in the manual to an external site. That way each item can be ordered, purchased or connected to a database using API settings.

By adding clear steps to any assembly process maximizes the ability to absorb the information and minimize errors.

Focus on details that matter, but place the the guidance in a bigger context. The user can control the angle and zoom levels themselves.

Besides showing assembly, highlight specific parts and provide layers of information like dimensions, materials, or bonus images.