Camlock Connector adapter to 40mm double helix vacuum hose (Siemens, Bosch)

I wanted to use old vaccum cleaner hoses in my workshop as an upcycling project and also to save some money on those expensive hoses. Printed Kipnugget's adaptor to the Camlock fittings but while it fitted on one hose i had, the two from Bosch Siemens vacuums somehow did not fit the thread. on closer inspection, it turned out that those sturdier hoses doo not have a thread with a ~ 5 mm pitch. Instead they have two threads within each other with a ~ 10 mm pitch. A big thnks to MGyula as he helped me with the same issue on his Parametric vacuum hose repair screw which i used to "cut" the inner thread. Due to the fact that the inner and outer thread have a different pitch, there are spots where you will only have 4 walls in total while Kipnugget's has 5 walls. As it ends up in the Camlock fitting, it should be sturdy enough. I printed it with 3 walls thickness to reinforce the nearby areas. (see slicer image)