If you've ever owned a Windows PC, there's a good chance ... Microsoft has seemingly shut down Paint 3D, which was once ...
and now it's selling a 3D printable trackpad (via Hackaday) you can plug into any PC's USB. If you've ever used a trackpad to ...
Formal drawings are a more precise style ... easily transferred to machines such as a laser cutter of 3D printer. This is known as Computer aided manufacture (CAM).