A couple of nice 3d machining pictures I found:
Llegando a Maquinaria (3D)
Image by Avodrocc
Crop Circle Builder
Image by jsbanks42
This tiny unit was discovered in a field in Nebraska, gradually flattening the location. The origin is unknown. The unit remained in the region for over 12 hrs and then was lost. No sound was detected.
3D Printed Stepper Motor Bracket
Image by nebarnix
Just need a rubber band now. Perhaps lathe up a pulley for the minor focus knob…