This is a lens adapter for GoPro Hero3.

It uses Kenko "27S MC C-UP NO3 silver" close up lens, and adjust focus to near point than normal.

I am using DaVinci 1.0 3D printer by XYZ printing.

Layer pitch is 0.2mm.
Normal speed and normal shell thickness.

No raft. No support.
With stick paste(Tombow, Shiwanashi PIT).

10 minutes to print. 10 minutes for shaping, constructing.
0.6m for ABS.