Why a manufacturing estimate changes
What to compare between two estimates for the same part.
Compare the inputs
Check model revision, scale, material and quantity. Identical previews need not mean identical geometry: walls and hidden features may differ. A link-based estimate depends on the chosen profile and available source data.
Separate order components
Compare manufacturing, additional work and delivery separately. Modeling, sample preparation and finishing may be agreed separately. Delivery depends on the selected location and service availability. Review the final order before proceeding to payment.
Agree on changes
Keep the order number, file revision and selected requirements. If estimates differ, contact the workshop before payment to clarify why. An initial estimate helps select an option; the payable order should be clear beforehand.