About this 3D model

This is a 3d printed sextant. This thing is based on xtant project that you can find at http://www.tecepe.com.br/nav/XTantProject.htm. I have printed the object in pla @ 0.3mm per layer. You need some m3 nuts and bolts, a piece of mirror, a glass cutter and an old radiography (for the sun filter). As soon as possible i will write a tutorial on instructable. The box is in at the follow link http://www.thingiverse.com/thing:355363