Cordless vacuum cleaner inlet adaptor / Boquilla adaptadora para aspiradora manual

This is an example of one adapter for a cordless vacuum cleaner that I designed to fit into an AEG Electrolux cleaner, and with the main intention of reach those areas in the car that ther normal endings of the vacuum cleaners are not reaching.
You can find the .stl for the AEG cleaner, but I've also uploaded the CATIA v5R18 file that is generating the .stl, in case you prefer to change the geometry. The CATIA is not so "clean", but if you look carefully you'll find the parameters that you nee