Variation on the Vesa mount for the Multifunction Arm. 

This part allows mounting a screen to the side, rather than the end of the arm, which is especially useful for multi-monitor setup.

Use together with the “Base-small-with-holow-M3” for the small version and with the “Base-with-holow-4040-M5” for the big one.

Print in PETG (or stronger) and use at least 4 perimeters and 30% infill.

F3D and .step files included.