HAPPY BOOKSGIVING
Use code BOOKSGIVING during checkout to save 40%-55% on books and eBooks. Shop now.
Dave Seff is, professionally, a UNIX/Linux engineer. Beyond that, he has studied electronics, computer design, computer programming, mechanical design, and machining in both school and via self-education. He prides himself on building his own tools and machinery for the purpose of fabrication and manufacturing. He has built many CNC (Computer Numeric Controlled) machines, including three desktop 3D printers of his own design.