Cyclone to Dyson adapter

I made this adapter to fit my cyclone dust filter and Dyson CD39 vacuum tube. I use a cyclone dust filter before my Metabo vacuum cleaner.
I used my function https://www.thingiverse.com/thing:2951921 to make this adapter. Everything else is easy to see in the pictures.

I used 3D tool to check every important parameter.
https://www.3d-tool.com/en_free-viewer-download.htm