3D Print Design & STL Export

I need a skilled 3D designer capable of creating a medium detail mechanical part from scratch. The freelancer will need to conceptualize the part as there are currently no existing drawings or blueprints.

Ideal skills for this job include:
- Proficiency in 3D modeling software
- Experience in 3D design
- Experience with STL file creation

Please provide a portfolio of your previous similar work and your estimated timeline for this project.