Stability mod part 1

I finally build Masos stability mod (http://www.thingiverse.com/thing:171418).

I replaced the printed arm with 40x20mm rectangular aluminum profile and used a simple L bracket to connect it to the carriage (grey). The wobble is gone now, but the parts were not printed very precise and therefore the carriage doesn't slide very well on the straight rods. I'm waiting for normal linear bearings to arrive.