3D Printing, Rapid Prototyping & Manufacturing News

The Science Behind Post-Processing in 3D Printing

Written by AME-3D | Oct 7, 2025 9:15:00 AM

When people think of 3D printing, they often imagine a finished part coming straight off the machine, ready to use. In reality, that’s rarely the case. The part that emerges from the printer is only the beginning — post-processing is what transforms a raw print into a functional, high-quality, and visually impressive final product.

At AME-3D, we offer a wide range of post-processing options tailored to each technology — ensuring that your parts meet your exact performance and aesthetic needs.

Why Post-Processing Matters

  • Improved Surface Finish – Removes visible build lines, support marks, or powder residue.

  • Enhanced Mechanical Properties – Techniques like vapour smoothing can improve strength and water resistance.

  • Custom Aesthetics – Colour matching, gloss levels, and textures tailored to your requirements.

  • Better Fit & Function – Precision sanding and coating improve dimensional accuracy.

SLA & LCD Finishing Options

SLA (Stereolithography) and LCD both produce highly detailed parts but often require extra steps to refine surfaces and achieve the desired look.

Grade 1 (Free)

  • Post-curing

  • Support removal

  • Optional bead blasting

Note: Scarring from build layers may still be visible.

Grade 2

  • All Grade 1 steps plus:

    • Dry and wet sanding to remove build lines

    • Shotblast finish

Grade 3

  • All Grade 1 & 2 steps plus:

    • Primer

    • Single paint colour (Gloss, Matte, Satin, or Spark finish)

Custom Finish

  • Fully bespoke finish tailored to your project, from multi-colour paintwork to unique surface treatments.

SLS Finishing Options

Selective Laser Sintering produces strong, functional parts with a slightly grainy texture.

Off-Machine Standard

  • Loose powder removal

  • Bead blasting

Optional Extras

  • Colour spray painting / dyeing

  • Vapour smoothing

  • Shot peening for improved surface strength

  • Dyeing black

  • Water-resistant sealing

Specific

  • Fully bespoke custom finish on request.

MJF Finishing Options

Multi Jet Fusion delivers high strength and precision, and our post-processing enhances its versatility.

  • Vaporfuse surfacing (VFS) – For sealed, smooth surfaces.

  • Poly-shot surfacing (PSS) – For improved appearance and texture.

  • Dyeing black – For a consistent, professional finish.

Choosing the Right Post-Processing

Your finishing choice depends on:

  • End use – Functional prototypes may prioritise strength and sealing; display models may focus on aesthetics.

  • Material – Certain finishes are only compatible with specific technologies.

  • Budget & Lead Time – More intensive processes add time and cost but can elevate part quality.

From Raw Print to Perfect Part

Whether you need a quick, functional prototype or a fully customised, production-ready component, AME-3D’s post-processing capabilities ensure your parts not only perform as intended but look exceptional.

Contact us to discuss the right finishing process for your next project.