Most moulding problems are designed in long before a tool is cut. Design for Manufacture is where we review your part early and improve it for clean, repeatable moulding, saving cost and time downstream.

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What is Design for Manufacture (DFM)?

Design for Manufacture (DFM) is the engineering review that makes a part properly mouldable before any steel is committed. We look at wall thickness, draft angles, ribs, bosses, gating, parting lines and ejection, then suggest practical changes that improve quality and reduce cost.

Getting DFM right prevents common defects such as sink marks, warpage, short shots and weld lines, and it leads to faster cycles and better yield. We bring this thinking in early, whether you are heading for rapid tooling or full production tooling.

DFM feeds straight into our mould tool design, all handled in-house in Haverhill.

Who This Service Is For

  • Designers and engineers who want a part reviewed for mouldability before tooling.
  • Customers turning a concept, CAD model or existing part into a production-ready design.
  • Teams who keep hitting moulding defects they cannot explain.
  • Anyone wanting to reduce tooling and part cost before committing.

Common Problems We Solve

  • “We are not sure our part will mould well.” We review it and suggest practical improvements.
  • “We keep getting sink marks, warpage or weld lines.” These usually trace back to design and gating, which DFM addresses.
  • “We want to cut cost per part.” Good DFM improves cycle time and yield.
  • “We have a model but no moulding experience.” We translate it into a manufacturable design.

Our Process

Part & requirements review

We review your CAD, drawing or sample against how the part needs to perform.

Mouldability analysis

We assess wall sections, draft, ribs, gating, parting lines and ejection.

DFM feedback

We suggest practical design changes that improve quality and cost.

Into tool design

Approved changes feed straight into mould tool design and build.

Capabilities, Materials & Tolerances

Indicative capability. Every project is reviewed individually, so talk to us about your specific tolerances and materials.

ReviewedWall thickness, draft angles, ribs, bosses, parting lines, gating, venting, cooling and ejection
InputsSTEP/IGES CAD, 2D drawings, photos or a physical sample
OutputsClear DFM feedback and design recommendations for a mouldable part
OptionalMoldex3D mould flow analysis with tool orders to validate filling and cooling
QualityISO 9001:2015 process control, certified by Lloyd's Register

Industries This Service Supports

Why Choose Us

  • Catch and fix moulding problems before they are cut into steel.
  • Lower tooling and part cost through better design.
  • Decades of toolmaking and moulding insight feeding your design, established 1978.
  • DFM, tool design, toolmaking and moulding all under one roof in Haverhill.
  • ISO 9001:2015 certified by Lloyd's Register.