Spirals2

Although this looks sort of like https://www.thingiverse.com/thing:2819315 it is actually quite different. To make the closed top I had to completely redesign the parts underlying geometry. I also switched the cross section of the spirals from rectangular to circular. Doing this reduces print time because the printer does not have to deal with corners and the associated acceleration/deceleration moves corners require.

This part printed in 27.5 hours using 0.200 mm layer height and a print sp