Measure a part with a digital caliper
قياس قطعة بقدمة رقمية
Use simple measurement habits that lead to better functional prototypes.
The problem
A replacement part is modeled from guesses rather than interfaces.
Why it happens
Critical dimensions, references, and tolerances were not captured consistently.
How to fix it
Measure the mating object, repeat critical readings, and print only the interface before a full part.
Settings to try
Measure the mating feature Record reference faces Print a small fit test
