3D Mechanical CAD Design

I need a precise 3-dimensional CAD model for a set of mechanical parts and their assembly. The end goal is a file I can hand straight to manufacturing, so accuracy in dimensions, tolerances, and part relationships is essential. To be considered, please show me examples of similar mechanical work you have completed—screenshots, renders, or native CAD files are all fine so long as they prove fit-for-purpose detail. I am comfortable with mainstream mechanical platforms such as SolidWorks, Inventor, Fusion 360, or similar; use whichever lets you deliver parametric, fully constrained geometry and an organised feature tree. Deliverables • Native CAD file(s) with all features intact • Exported STEP or IGES for cross-platform use • An exploded assembly view or animation that clearly shows how the parts fit together I will review past work first, then share the component specs, sketches, and target tolerances so you can begin modelling right away.