I've always wondered how these product outlines/sketches found in user manuals are created. I'm not a photoshop expert but I've tried YouTubing and Googling, but nothing really came up. These HAVE to be made using Photoshop, but the question is, how?
Bear in mind that not every drawing or design you see in print was done in Photoshop. The above images may have been direct renders from a CAD (Computer Aided Design) or 3D modelling application, manually hand-drawn or a render from a Vector conversion of the CAD file in Illustrator or Corel Draw.