I created this small usb container which can be mounted to the Z-Axis Aluminium Profile. It was printed using Galaxy Black Prusament PLA with a layer height of 0.2mm You also need 2 M3x8mm Screws which screw directly into the swivel nuts.
Layer height: 0.2mm
Infill: 15%
A raft is recommended for the swivel nuts.
The author hasn't provided the model origin yet.