SBIG wheel filter 8 position

Some CCD cameras constructed by SBIG for astronomical purposes use a wheel filter with 8 position made in aluminum. We are using a second hand camera STL-11000 that came to us without this wheel, and the company doesn't sell anymore components or parts of this model. We made this STL (with Freecad) to print the wheel filter in ABS or PLA and test it to made a definitive one in aluminum.
The design is copyrighted by SBIG