DFM checklist

DFM Before Tooling Checklist

DFM should happen before tooling deposits whenever possible. This checklist helps teams catch the expensive issues that often appear after a supplier starts mold work.

Visual context

What this checklist should support

A checklist is useful only when it connects to project evidence that a buyer, engineer or supplier can review.

Mapped before scope
Input evidence

Mapped before scope

Brief, references, constraints and current files are mapped before scope is recommended.

Supplier-ready handoff
Structure evidence

Supplier-ready handoff

3D structure, assembly logic and exploded views make supplier handoff easier to review.

Prototype learning path
Prototype evidence

Prototype learning path

Sample route, fit checks and revision notes show what the next prototype should prove.

Pilot risk control
Production evidence

Pilot risk control

DFM notes, supplier questions and pilot gates reduce late surprises before tooling or launch.

Checklist

What this resource helps clarify

Use the table as a project-preparation checklist before sharing files or requesting a first development path.

AreaWhat to prepareWhy it matters
GeometryDraft, wall thickness, ribs, bosses, clips, undercuts, gates and parting direction.Controls tooling complexity and cosmetic risk.
Material and finishResin, texture, color, UV, heat, cleaning and durability requirements.Avoids quote changes and sample surprises.
Approval gatesT0, T1, pilot and production sample criteria.Makes supplier feedback easier to approve or reject.
Send for review

Turn the checklist into a next-step recommendation

A short product description is enough to start. Sensitive technical, supplier and prototype files can wait until NDA terms are agreed.

Review files before tooling

Send product type, current stage, target market and the context you can safely share now.

Start Project
Need a prototype or DFM review? Send product type, stage and target market.