What we review

Every manufacturing process places its own demands on the design. A part that mills perfectly can be unmouldable; a casting with sharp internal corners becomes expensive or weak. We test the design against the intended process and the quantities.

Material and wall thickness

Material choice, uniform wall thicknesses and the risk of warpage or sink marks.

Geometry and tooling access

Machining access, cutter radii, internal corners and draft angles for casting and moulding.

Tolerances

Which dimensions are truly critical, and where a wider tolerance saves cost without losing function.

Fastening and assembly

Fastening methods, threaded inserts, snap fits and the build-up of the assembly.

Finishing

Surface texture, coating and galvanic layers, and what they mean for the design.

Tooling and cost

Consequences for the mould or tooling, production volume and the main cost drivers.

The question behind the question

We do not only ask: “Can this be manufactured?” but also: “What is the most sensible way to manufacture it?”

Sometimes that means a different process than expected, a small design change that simplifies the mould, or the advice to first test a final-material prototype. The goal is always the same: a reliable series product at a responsible cost.

How DFM feedback works with us

At Exten, DFM feedback is part of every enquiry, not a separate service with its own invoice. During the technical review of your design we flag manufacturability risks and improvement opportunities, and discuss them before the quotation or production.

You decide. It remains your design; we supply the production arguments. How the full route works →