Accessory Monitor Mount Desk Mount Extension

The small holder proved not to be stable enough
The clamp tore at the pivot points over several days 
and the monitor slowly sagged
Therefore, I have now closed the clamp at the back instead of the side, reinforced the sides, printed it in a different orientation
and used PETG instead of PLA

I am attaching the new images and print profiles here so you do not have to search long for them

Extension for a “Dual Monitor Desk Mount” For mounting two monitors of different heights

The mount was reinforced at the rear with two M6 screws and long nuts
The vertical rod of the mount has a diameter of 30mm
The arm for the monitor is also 30mm high 
plus a plastic plug of approximately 0.6mm each at the top and bottom
 

For the lower section, I opted for threaded sleeves (optionally 2 nuts on top of each other)

to distribute the stresses as widely as possible

Material List:
2 x M6 x 80mm threaded or machine screws, to reinforce the body
2 x M6 x 30mm threaded or machine screws, to tighten the sleeve
1 x M8 x 80mm threaded or machine screw, to attach the arm

4 x M6 washers, as small as possible, for the sleeve tensioner

1 x M8 washer, max 15mm diameter (not strictly necessary)

2 x M6 washers, as small as possible, for the M6x80 (not strictly necessary)

2 x long M6 threaded sleeves (optionally 4 nuts)

1 x long M8 threaded sleeve (optionally 2 nuts) 

!!! ATTENTION !!!
My small monitor is a Samsung SMBX 2440 and weighs approx 4.2 kg
Everyone is responsible for their own use of this holder
I assume no responsibility for defective devices