Focus Ring for Fish Eye Handy Lense

Trying to add my new handy-lense fisheye/wide-angle lense
(found here:
https://www.amazon.de/gp/product/B073RJ86GT/ref=ppx_yo_dt_b_asin_title_o05__o00_s00?ie=UTF8&psc=1 )

i modified the original (found here: https://www.thingiverse.com/thing:1406879 )
to be able to add the lense directly into the focus ring.
the lense if of these dimensions:

screw part below: 16,75mm diameter
fish eye lense: 26mm diameter


you need to print the focus ring with supports and remove them carefully a