Print-Rite Carriage with sensor mount

Replacement part for the Print-Rite DIY carriage.
I took the model from shawdreamer (take care to thanks him too).

I made some improvements to fit the original parts better.
It's also compatible with this cooler :

http://www.thingiverse.com/thing:1514276

I printed it upside down (some support will be needed), but I assume you can try to print it upright.

When your print is done, assemble the main, bloc_2 and bloc_3 with the belt (you can glue main an bloc_3 together).
Then adjust