Summary

This is first thing I upload here - simple hexagonal container which can be hooked to another cointainer.

edit - added CAP.stl

https://youtu.be/OyeID1EfvbQ

Print Settings

Printer Brand: RepRap

Printer: Prusa I3

Rafts: Doesn't Matter

Supports: No

Infill: 30%

Notes:

With 0.5 nozzle this work best for me :

Container.stl

Perimeter - 1
Botom solid layers - 2
Top solid layers - 2
Layer height 0.34 or lower
Print speed - Fast (3600mm/min - 60mm/sec)
Outline underspeed 50% (30mm/sec)
Infill speed 80% (48mm/sec)
Supports: NO

cap.stl

Perimeter - 1
Botom solid layers - 2
Top solid layers - 3 or 4
Print speed medium or slow - 50mm/sec
Layer height 0.34 or lower
Supports: YES