Extra strong T-connector for Shoulder Rig

I found that the forces on the handles of the rig can be quiet strong due to the leverage.
e.g. when accidentally hitting a door.

This T-connector is changed to be much thicker and stronger.

blog post:

http://marcuswolschon.blogspot.com/2011/04/en-extra-strong-t-connector-for.html

photo album:

https://picasaweb.google.com/Marcus.Wolschon/20110325Bis201105ShulterRigBauen?feat=directlink

discussion:

http://forums.reprap.org/read.php?88,75536

project notes in my wiki:

ht