MINI KOSSEL Carriage

Attached is a openscad and STL file for a carriage that used screws as rebar for added stability, and fixes the belt by looping it back on itself.

It also allows for a lot of freedom in movement for the push rods, and mounts to the standard linear rails easily.

I created this to replace the makergeeks carriages I had received with my kit, which did not hold up to the pressure of the belt.
Many thanks for all the ideas people shared in the rep-rap forums and here on thingiverse.

More information here:
http://sebastian.steinhauer.info/index.php/2015/09/09/mini-kossel-building-a-better-carriage/

The screws used for re-bar are M3x10 Socket Head Cap Screws.
I got mine from mr. metric here:
http://www.mrmetric.com/metric-fasteners/metric-socket-head-cap-screws-ssa2/M10605.html

[UPDATE]
I have now been using these for ~6 month without any issues. Also uploaded a couple more photos.