Adapter to use AddStoris dispenser with Viala fixation

In our bathroom we have installed the Villeroy & Boch ceramics series Viala. This includes a liquid soap dispenser. But this unfortunately got broken.
Since some time Viala is not available anymore on the market. So I chose for an HansGrohe AddStories dispenser and designed an adapter for it.

The adapter has a quite tight fit to safely hold the dispenser, you may even need some sanding.

Printing

   Material: PETG
   Infill: 15% (anyway will create only solid walls
   Support: yes, needed