Cable Clip / Duct 2020 3030 4020

These are cable clips / ducts that snap onto 2020 / 3030 / 4020 extrusions.

Scale the Z height in your slicer to meet your requirements.
The default is 10 mm which creates a sturdy clip.
For creating a duct use the desired length as the Z height.

The photo shows the 30 mm version of all three types.

29.12.2018:
Reduced wall thickness to 1.5 mm, now it prints 25% faster but is still rigid enough.
Added ducts where the clip is inside the extrusion not outside.
The file with the four