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materials2 min read

FDM vs SLA vs MJF: Choosing the Right 3D Printing Material

A practical guide to selecting the right process and material for your next prototype or production run.

At 3 Zero, the most common question we get from new clients is: "Which process should I use?". The honest answer is — it depends on what the part needs to do.

FDM (Fused Deposition Modelling)

FDM is our most accessible process. It uses thermoplastic filament (PLA, ABS, PETG, TPU) and is ideal for:

  • Functional prototypes that need to be handled and tested
  • Jigs and fixtures for assembly lines
  • Large parts where cost efficiency matters more than surface finish

Tolerance: ±0.3 mm | Best materials: ABS, PETG, TPU

SLA (Stereolithography)

SLA uses UV-cured resin for exceptional surface detail. Choose SLA when:

  • Surface finish is critical (presentation models, medical devices)
  • You need fine features under 1 mm
  • The part will undergo visual inspection or client presentation

Tolerance: ±0.1 mm | Best materials: Standard Resin, Tough Resin, Flexible Resin

MJF (Multi Jet Fusion)

MJF is our production-grade process. PA12 Nylon parts are isotropic, functional, and batch-ready:

  • 50–500 unit production runs
  • Parts that need mechanical strength in all directions
  • Functional assemblies like hinges, clips, and enclosures

Tolerance: ±0.1 mm | Best material: PA12 Nylon

Quick Reference

ProcessSurfaceStrengthCostBest For
FDMMediumGoodLowPrototypes, jigs
SLAExcellentModerateMediumVisual models
MJFGoodExcellentMedium–HighProduction runs

Ready to choose? Get a quote and our team will recommend the right process for your part.

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