Prototype Gear Assembly CAD Models

I need a clean 3 D solid model of a simple gear-and-shaft assembly, complete with its enclosing housing, so I can move straight into prototyping. The geometry has to be built in either AutoCAD or PTC Creo—whichever you are faster with—because I will reuse the native files later in our workshop.

For every component (gears, shafts and the housing) I must see:

• A fully parametric 3 D part and the assembled model, ready for export to STEP and STL
• A matching 2 D manufacturing print that calls out all critical dimensions and tolerances

I care about three things in equal measure: visual appeal for quick stakeholder reviews, rock-solid dimensional accuracy for the machine shop, and drawings that are immediately understandable by anyone who picks them up.

Submission will be considered complete when I can open the source files, verify the dimensions against a simple check list, and show the rendered views to my team without additional touch-ups. Let me know which tool you prefer and your estimated turnaround.