Self centering 3D models

Centering tool to slot 6mm axles or M6 screws by handsaw

Self-centering tapered-thread Z-axis coupling [v2]

Self-leveling gyroscopic cupholder

Self watering planter version 2.2

Lathe Cutter Centering Tool

Bre Pettis in 3D!

Kubaton

Kubotan - printable

Leonardo da Vinci's self-supporting bridge (parametric)

Self-scan with the Kinect for windows and ReconstructMe

Penta self watering flower pot

Working Gomboc