Ortlieb bike backpack wall mount with adjustable mount point distance

The distance between the mount points can be adjusted (see the gif below) by scaling the middle part of the print. By default, the distance between the two mount points center's is 135mm. 

Works for me with PLA and PETG. I used 3+ walls and 20% infill to make the model stiff. In addition, I recommend to print using supports and in the orientation as depicted in the attached image.

Used printer settings:

• Filament: PETG or PLA
• Supports: Enabled (see attached image)
• Infill 20%
• Walls: 3+
• Bottom layer: 4
• Top layer: 4