Socket Retainer Kit / Socket Rail Organizer

In an effort to teach myself how to model (slightly) more complex, and interlocking shapes in SketchUp; as well as being disgusted with how expensive these stupid things can cost I decided to "make" my own. This set includes dongles which should fit 1/4", 3/8" and 1/2" drive sockets; labled 25, 375 and 50 respectiely.

I must point out however that my 3D Printer is on back-order so they are **COMPLETELY** untested however I *think* I did the math right and gave proper clearances. The STL's load fine in both Cura 13.06.4 and Repetier 0.90c; as well as a "virtual" print in Repetier runs fine.

Cura reports a cost of ~1USD per rail assuming a cost of ~30USD/kg of ABS @ 75% Fill, the dongles being ~0.15 to 0.21USD depending on which size at the same fill.

The rails have little nibs on each end stopping the "dongles" from sliding off once you squeeze them on; and the dongles themselves have nibs which should keep your sockets reasonably secured.

The rails measure 180mm; which *s