Modify Modular Ring CAD Files: Create diameter variants for core band

Seeking a skilled CAD designer to modify existing 3 STP files (size 7 will be provided to you) for a modular ring design. The task involves creating three new size sets (sizes 6, 9, and 12) for each of the three ring designs: Inset, Verto, and Torque. This will result in a total of 9 updated STP files.

Key Requirements:
- Adjust the inner diameter of the core band to achieve the new sizes.
- Maintain the original dimensions and design of the crown insert; it must not be altered.
- Provide updated dimension diagrams for each modified ring in PDF format. You will be provided with existing dimensions diagrams - follow the same pattern.
- Ensure high precision in the inner diameter adjustments to meet specified standards.

Ideal Skills and Experience:
- Proficiency in CAD software and experience with STP file modifications.
- Strong attention to detail and ability to work with high precision requirements.
- Experience in jewelry design or similar fields is a plus.

Please note that signing a Non-Disclosure Agreement (NDA) is required before accessing the Google Drive files. The files can be found here: https://drive.google.com/drive/folders/1_lxnEQhADDJZV95nyjzbrorOeATJ3uYZ.