About this 3D model

My Replicator's Y-axis rail-guide broke :( So I built a replacement :) This is a work in progress and I've not yet test printed. A more robust design is on the way with fewer stress points. I've asked Makerbot if they could release a model for the part - if I get it and they're okay with publishing I'll put it here as well. Leave a comment if you give this a shot or have suggestions. Thanks