DFM Optimisation for
Additive & Advanced Manufacturing
Resolve unprintable geometry, reduce support usage, select the right material, and cut per-part cost — before a single layer is deposited.
DFM engineering review — wall thickness callouts and GD&T annotations applied to manufacturing drawing prior to production sign-off.
What Is DFM Optimisation?
Design for Manufacturability (DFM) Optimisation is the systematic engineering process of analysing a CAD model's geometry, tolerances, and material specification against the capabilities and constraints of the selected manufacturing process — and correcting any incompatibilities before production begins.
In additive manufacturing, DFM is not optional. Every 3D printing technology has hard physical limits: minimum wall thickness, maximum unsupported overhang angle, resin entrapment geometry, powder-removal access, and layer-line orientation relative to load paths. A file that fails any of these constraints will either fail to print, produce a rejected part, or produce a structurally compromised part that passes initial inspection but fails in service.
< 24 h
DFM report turnaround
From file submission to annotated STEP + PDF report
98%
First-article pass rate
On DFM-reviewed files vs 74% on unreviewed uploads
22–40%
Average cost saving
Through hollowing, orientation, and support reduction
5
DFM check categories
Wall · orientation · support · cost · material
What We Optimise
Every DFM review covers five critical dimensions that determine whether your part can be reliably manufactured at target cost and quality.
Wall Thickness
Walls below the technology minimum (SLS: 0.7 mm, SLA: 0.5 mm, FDM: 1.2 mm) cause warping, delamination, or print failure. DFM analysis flags every sub-spec wall and proposes corrective geometry.
Print Orientation
Orientation determines surface quality on visible faces, layer-line direction relative to load paths, and support contact area. DFM defines the optimal print orientation for each technology and load case.
Support Reduction
Supports add cost, post-processing time, and surface defects. DFM redesigns overhangs >45° into self-supporting chamfers or splits parts into print-friendly sub-assemblies that snap or bond together.
Cost Efficiency
Material volume, build height, and support density are the three levers that directly control print cost. DFM hollows solid bodies, reduces bounding-box footprint, and nests parts to maximise machine utilisation.
Material Suitability
Functional requirements dictate material choice. DFM maps mechanical properties (tensile strength, HDT, chemical resistance) to available materials and flags mismatches between design intent and selected material.
DFM Optimisation in Practice
A production-intent electronic enclosure submitted with sub-spec walls, unsupported overhangs, and resin-trap geometry — corrected for SLS production with 31% mass reduction.
Original Customer File — Pre-DFM
Unreviewed STEP: 0.4 mm walls, 8 trapped-powder zones, estimated reject rate 40%.
DFM-Optimised & SLS Printed — PA12
Post-review PA12 SLS print — walls corrected, powder access holes added, mass –31%, first-article pass.
ZenCore 3D production floor, Budapest — DFM-reviewed files enter production directly. Machines, post-processing, and metrology equipment in a single traceable workflow.
DFM Rules by Technology
Each manufacturing process has distinct geometry constraints. Select the technology to view its specific DFM checklist and reference imagery.
SLS requires no support structures — all geometry is self-supporting within the powder bed. DFM focus is on wall thickness minimums, hollow-body ventilation, and nesting for batch economics. Avoid fully enclosed voids: trapped powder cannot be removed.
Talk to an Engineer
Upload your STEP file and describe your production requirements. We'll return a DFM report with annotated geometry and corrected file within 24 hours.