CableMount for 20mm extrusion

2017-03-01 UPDATE:
CM.v3.02.stl the cap sits more steady on the base

UPDATE:
this is the new version of the CableMount CM.v2.03.stl
these are now two parts, the socket to be screwed on the aluminium extrusion and a cap to slide over the socket once the cable are inserted.

I leave the pictures of the first verson with the diagonal slot here to see the 'evolution' :)

I designed these cable mounts to get some cables organised while I'm setting up my new HyperCube. They are attached