Dyson DC05 Tube Connector

For the second time in its 10 year life, my Dyson DC05 has broken the connector between the handle and the extendable tube. Unfortunately Dyson have now stopped producing spares for the machine (the website says that they are engineered to last a lifetime, not sure who's...)

Now that I have a 3D printer I decided to design a replacement part for it. It is slightly over engineered and may do with a few minor tweaks, but it works.