1 Table of Contents: “... -- Playing with electronics -- 2D design and the laser engraver -- 3D design and the 3D printer -- Learning...”

2 “... treating, surface treatment, marking, engraving, etc. are addressed in detail, from the practical point...”

3 Table of Contents: “..., Snijlab, and Hasso Plattner -- Stacking Layers -- Engraving and Decoration -- Printed Circuit Boards...”

4 “..., like a Raspberry Pi, make 3D printers vastly smarter and up to five times faster. New laser engravers...”