Last week, Valve chose their absolute most favourite announcement time – Friday evening, after we all go home – to release the Steam Frame’s CAD files to the world. In short, this lets anyone with a 3D printer or a lathe or an injection moulder (etcetera) take the VR headset’s official blueprints and use them to make cool stuff for it. Non-commercially, of course. Even before this great declassifying, though, it seems some lucky first-wave Frame recipients were already putting…