As a seasoned professional in 3D modeling and rendering with years of experience under my belt, I am confident that I possess the necessary skills to tackle your project efficiently. With my familiarity with CAD software, STL file editing, and understanding of precise tolerances, I can assure you accurate dimension adjustment as per your specific requirements.
Moreover, my keen eye for detail is something I pride myself on which makes me the right fit for intricate tasks such as adjusting the cylinder dimensions while keeping the fins scaled down precisely to 84mm for compatibility with an 85mm tube. I am also highly acquainted with engineering principles that define precise tolerances and geometric measurements.
Lastly, my extensive set of software proficiency includes 3ds max, After Effects, Adobe Illustrator, Photoshop, Marvelous Designer and Art CAM- all relevant for this project. With a perfect blend of creativity plus technical adeptness, I guarantee a successful completion of this project in the most professional manner whilst ensuring that it meets your exact specifications. Thank you for considering me!