Y-Axis Bracket for Solidoodle 2/3 - Lipped version

This is a derivative of Chuck Murrays "Y-Axis Bracket for Solidoodle 2" (http://www.thingiverse.com/thing:36446) . I printed his originally but found they had a bit too much propensity to twist on my Solidoodle 3. The originals had a small 'lip' that hugged the case edges ensuring they stayed straight - so I imported Chuck's into Sketchup and added the lips. As a result, the 'overkill' versions are no longer ambidextrous. Included is STL files for dual copies of either version.