Replicator Extruder Wire Bundle Strain Relief Upgrade

This is the first thing I've designed. It's a strain relief upgrade for my Makerbot Replicator I made using Autodesk 123D Beta.

The Replicator shipped with a fairly fragile method of tethering the main wire to the extruder carriage and I found that I would have to frequently reattach it (it was a zip tie pulled over a screw head).

Fed up with this design I made a clip which is held in place by the same screw which held the zip tie in place. I took special care to ensure that the screw rema