Design for Manufacturability principles For Machining

As a design engineer, one of the most impactful ways to drive project success is applying Design for Manufacturability (DFM) principles early - especially for CNC machining. Small tweaks in your designs can slash machining costs by 20-50% and cut production time significantly.

Here are some proven strategies we’ve used to optimize parts:

Simplify geometries:
Avoid deep pockets (limit depth to 4-5x diameter), thin walls (keep ≥0.8mm for metals), and sharp internal corners—add fillets to allow larger tools and faster passes.

Minimize setups:
Design for single-side machining where possible to reduce flips and custom fixtures.

Use standard features & tolerances:
Stick to common tool sizes, relax non-critical tolerances, and choose machinable materials like aluminum over exotics.

These changes not only lower costs but also improve part quality and lead times. Collaborating with machinists early for DFM feedback is game-changing!