Some cool precision engineering elements photos:
Digital Macro Stacking Concentrate Rail

Image by tudedude
Experimental Focus Rail Driven by a Nema 17 Stepper Motor and controlled by a an Arduino Nano.
Rapid Prototyping China
Some cool precision engineering elements photos:
Digital Macro Stacking Concentrate Rail

Image by tudedude
Experimental Focus Rail Driven by a Nema 17 Stepper Motor and controlled by a an Arduino Nano.