Hercules DJ knob - SAAB 900 rim

A Hercules inspired by the classic SAAB 900 rim. 

With nice grip and and position indicator.

Prints in 3 pieces for a single color print. The inner part is best to be two colored by layer change for the lighter top and darker bottom surfaces. After printing push firmly the inner part into the outer and glu the indicator strip into position. 

I have also included a single piece version for multi color printers. 

Layer height around 0.1-0.12 mm is advised.