Bahtinov Mask for russian Maksutov

This is a Bahtinov Mask created expecialy for the russian Maksutov Rubinar MTO11-CA in Germany called "Russentonne" classic version.
The Mask was calculated with help of open source software.
There is some, but not too much space left (inner radius) for tape or something to fix the Mask at the Teleskope. But it can absolutely be used "out of the printer".
Apologige my english,
have fun
Dr. R. Hofmann