Separate prototype feedback from production requirements
A prototype can prove form and use case, but production review also needs material, finish, quantity, lead time, packing, and customer support assumptions.
Prepare files and notes for repeat review
Send STL or STEP files with target quantities, dimensions, previous test results, known risks, and the intended customer environment.
Use a controlled run before scaling
A reviewed first batch can expose timing, quality, packing, and fulfillment constraints before a team promises a larger launch or recurring order schedule.