This is a cable mount for I-type 4040 extrusions (8mm slot width) which requires no fastener. Instead, it is inserted into the slot at a 45° angle and then rotated into either horizontal or vertical orientation, where it stays in place on its own. This means both cables running parallel alongside an extrusion and cables crossing perpendicular to it can be fastened.
I have uploaded variants for velcro strips (10mm or 13mm) and different sizes of zip-ties.
The models should be printed without any supports, in the original diagonal orientation of the files.
The author remixed this model.
Resized for 4040 extrusion (8mm slot width).