What to include with your CAD file
Include the drawing revision, quantity, intended use and target delivery date. Add a dimensioned drawing for critical features and flag appearance surfaces.
Choosing between metal, nylon and resin
Start with the part function and service environment. Mechanical loads, heat, chemicals, detail and surface appearance help narrow the options. Confirm the exact grade and datasheet for your project.
Prototype or production part?
State whether the part is for visual review, fit checking, functional evaluation or end use. Acceptance criteria and inspection should match the intended use.