Services · Finish · Inspect

Post-Processing & Finishing Services

Turn a printed part into a finished component. Seven in-house processes across FDM and powder-bed parts alike, usually within 24–72 hours of printing — led by SLS shot blast polishing and A-class painting to automotive show-surface standard, two things you will struggle to get from a printing bureau. Printed somewhere else? Send them over and we will finish those too.

Quote printing & finishing → Send parts for finishing

3D print finishing · SLS blast polishing · A-class paint · vapour smoothing · black dyeing · vibro polishing

Overview

The difference between a printed part and a finished one

A part straight off the bed is not a product. It has layer lines, a chalky powder-bed surface or witness marks where supports were. For a functional prototype that is fine. For something a customer sees, touches or relies on in service, it is the last 10% of the job that decides whether it reads as manufactured or as printed.

We finish in-house, on the same site that prints, across both FDM and powder-bed parts — which matters, because a bureau that only runs powder beds can only finish powder-bed parts. Two capabilities are worth singling out: shot blast polishing, which takes SLS parts well beyond the chalky as-printed surface and is the best possible preparation for dyeing, and A-class painting to automotive show-surface standard, which almost no printing bureau offers. Most finishes complete within 24–72 hours of printing — and we can carry a job all the way through to a finished, assembled unit, so parts arrive ready to fit rather than ready to build.

And you do not have to have printed with us. We will finish parts made elsewhere, provided they meet our material and size requirements.

Three finishing stages of an SLS nylon part: raw as-printed and powder-caked, depowdered, and shot blast polished smooth — From the powder bed to a finished surface — as-printed, depowdered, and shot blast polished.

Finishes

Seven finishing processes, one facility

Each of these is a different job, not a different grade of the same job. Two of them are where we genuinely separate from other bureaux: shot blast polishing on powder-bed parts, and A-class painting to automotive show-surface standard.

Shot blast polished SLS nylon part with a smooth, even, dye-ready surface

Process

Shot Blast Polishing

High-pressure specialist media compacts the surface of powder-bed parts, cutting roughness and porosity to leave a smooth, even, dye-ready finish. Our signature SLS finish.

See shot blast polishing →

Camouflage A-class painted UAS airframe finished by RYSE 3D, crisp masked two-tone scheme

Process

Painting & A-Class Finish

Automotive show-surface paint — filled, primed, based, cleared, flatted and polished to a defect-free Class A standard. Rare in a printing bureau.

See painting & A-class →

A batch of black dyed nylon 3D printed parts by RYSE 3D, coloured together in a single immersion cycle

Process

Black Dyeing

Dye absorbed into the surface of powder-bed nylon rather than coated on — a uniform deep black with no added wall thickness, nothing to chip, and even colour right through internal geometry.

See black dyeing →

Two vibro polished parts side by side, one vibro polished and one vibro polished then dyed black

Process

Vibro Polishing

Vibratory tumbling with abrasive media and water — an even satin finish and excellent batch-to-batch consistency, with dimensions preserved.

See vibro polishing →

3D printed parts with different surface finishes including a glossy vapour smoothed sealed surface

Process

Vapour Smoothing

Chemical surface re-melting to a sealed gloss, reducing porosity and improving impact resistance. Reaches internal features other processes cannot.

See vapour smoothing →

RYSE 3D printed part fitted with brass threaded inserts, captive nuts and a seated bolt

Process

Threaded Inserts & Bonded Fixings

Brass threaded inserts for strong reusable metal threads in plastic, plus bonded fasteners including Bighead fixings — turning printed parts into assemblies that bolt together and take real load.

See inserts & fixings →

Five identical 3D printed hot-end assemblies in a row, each with fan, motor and wiring loom fitted, a production sub-assembly batch

Process

Assembly & Sub-Assembly

Finished parts built into a working unit — mechanical assembly, bonding and adhesives, and electronics and wiring integration, delivered ready to fit or ship.

See assembly →

Choosing a finish

Which finish do you actually need?

Most people arrive asking for “smooth”. It is worth being more specific, because the processes do different jobs and cost different amounts.

Reviewed by the RYSE 3D engineering team · August 2026

Finish	Result	Best for	Materials
Shot blast polishing	Smooth, even, low-porosity, dye-ready	Powder-bed production parts, pre-dye, premium tactile feel	SLS & MJF nylons
Painting & A-class	Any colour and sheen, up to defect-free show surface	Customer-facing, branded and automotive visible parts	Most materials, after preparation
Black dyeing	Uniform deep black, no added wall thickness	Coloured production batches, parts that still have to fit, internal geometry — best after blast polishing	SLS PA12, PA11, PA12-GF · MJF PA 12, PA 11 Gen2
Vibro polishing	Even satin, layer lines reduced	Batch consistency, preparation for paint	FDM & powder-bed parts
Vapour smoothing	Glossy, sealed, moulded-look	Liquid-tightness, hygiene, reduced porosity, cosmetics	ABS, ASA, nylon (PA), TPU
Inserts & bonded fixings	Metal threads & load-bearing fixing points	Parts that bolt together, repeated assembly, mounting to structure	Most printed materials
Assembly & sub-assembly	Finished parts built into a working unit	Multi-part products, sub-assemblies, ready-to-fit deliverables	Any materials, plus bought-in hardware
Machining	Tolerance-critical features	Fits, bores, mating faces	Material dependent

Quote printing & finishing → Finishing parts printed elsewhere

Process

How finishing runs

Preparation & review

Parts are assessed for finishing requirements — geometry, support witness marks, critical dimensions and the finish you are aiming for.

Surface treatment

Blasting, vapour smoothing, polishing, dyeing, painting or coating, selected against the material and the finish specification.

Quality & inspection

Finished parts are checked for surface conformity, dimensional accuracy and performance criteria before they are signed off.

Delivery & integration

Parts arrive ready to mount, assemble or put straight into service — not needing another operation at your end.

Use cases

What finishing is for

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End-use parts

Visible, functional components delivered without a secondary manufacturing step.

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Surface upgrade

Bring printed parts up to final-product quality with smoothing, dyeing or paint.

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Low-volume series

Print and finish short production runs with a premium, repeatable finish.

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Tooling & fixtures

Finish housings, jigs and fixtures so they survive a production environment.

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Aesthetic & branded parts

Automotive interiors and exteriors, industrial design and anything a customer sees.

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Parts printed elsewhere

Send us components from another supplier or your own machines and we will finish them here.

Industries

Who we finish for

AutomotiveAerospaceMotorsportDrones & UAVEnergyIndustrial equipmentMedical & healthcareMarine & outdoorConsumer goodsConstruction productsElectrical & electronics

Why RYSE 3D

Why finish here

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SLS blast polishing

High-pressure media compacts and refines the powder-bed surface, cutting roughness and porosity for a smooth, premium feel and a far better dye result than blasting alone. It is our signature SLS finish.

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We will finish other people’s parts

Printed somewhere else, or in-house on your own machines? Send them over. Subject to material and size, we will finish them.

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24–72 hour finishing

Many parts are finished within 24 to 72 hours of printing, so the finish does not become the bottleneck.

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A-class paint, in a printing bureau

Filled, primed, flatted, based, cleared and polished to a defect-free automotive show surface. Most bureaux stop at a rattle-can approximation; we do not.

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ISO 9001 with inspection built in

Every finished part is checked for surface and dimensional conformity under a certified quality system.

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Single batch or production volume

From one prototype to repeat production runs, with the consistency that matters most when parts sit side by side.

Honest limits

What finishing cannot do

Finishing is not magic and it is not free. Knowing where it stops saves you money and disappointment.

Vapour smoothing is material-specific

It works on ABS, ASA, nylon and TPU. It is not available for every grade we print — polycarbonate and carbon-filled PETG among them — so if a glossy sealed finish is essential, choose the material with that in mind and talk to us before you commit.

Bead blasting will not erase layer lines

It evens out and matts the surface, but FDM layer lines need vibro polishing, vapour smoothing or filling and paint to genuinely disappear.

Dyeing is powder-bed only, and black

Dye needs porous nylon to absorb into, so FDM and SLA parts cannot be dyed at all — those go to paint. We run black, and dye cannot hit a RAL or Pantone reference. The full picture is on the black dyeing page.

Critical tolerances need flagging first

Any process that adds a coating or reflows a surface can affect a fit. Tell us which dimensions matter before finishing, not after, and we will plan and inspect around them.

Finishing cannot fix a print problem

A part with the wrong wall thickness or a poor build orientation will still be wrong once it is glossy. We would rather correct the design at quote — that review is free.

Colour matching has limits

Dyed and painted parts can be matched closely, but exact matching to an existing moulded component across every batch and material is something we will assess honestly per project.

It adds time and cost

A finish is a real operation with real hours in it. Where a raw printed part will do the job, we will tell you to save the money.

FAQ

Post-processing & finishing FAQ

What is post-processing in 3D printing?

Post-processing is the stage after printing where parts are refined to improve surface quality, appearance and performance. It covers vapour smoothing, vibro polishing, bead blasting, dyeing, painting and coating, plus machining and dimensional inspection where required.

What is vapour smoothing and what does it do?

Vapour smoothing exposes a part to a controlled solvent vapour that softens and reflows the outer layer, fusing the microscopic peaks and valleys into a smooth, glossy surface close to injection moulding. It also seals the surface, reducing porosity and improving resistance to moisture, chemicals and dirt, and it reaches internal features that line-of-sight processes cannot.

Which materials can be vapour smoothed?

Our vapour smoothing process is compatible with ABS, ASA, nylon (PA) and TPU. Other grades in our range are not vapour smoothable, so if a glossy sealed finish is a requirement it is worth choosing the material with that in mind — ask us at quote and we will confirm.

What is shot blast polishing and how is it different from bead blasting?

Bead blasting removes residual powder and evens the surface to a matte finish. Shot blast polishing goes further: high-pressure specialist media compacts the powder-bed surface, cutting roughness and porosity to leave a smooth, dye-ready finish with a premium tactile feel. It is the best preparation we have for dyeing, and it is our signature SLS finish.

What is black dyeing and which parts can be dyed?

Black dyeing immerses powder-bed nylon parts in a heated dye bath so the colour is absorbed into the surface of the polymer rather than coated on top of it. Nothing is added to the surface, so dimensions, threads and clearances are unaffected and there is no coating to chip. It works on SLS PA12, PA11 and PA12-GF and on MJF PA 12 and PA 11 Gen2. FDM and SLA parts cannot be dyed and are painted instead.

Can you finish parts that were printed somewhere else?

Yes. We post-process parts produced on third-party printers or on your own machines, provided they meet our material and size requirements. Get in touch with the details and we will confirm before you ship anything.

How long does post-processing take?

It depends on part size, quantity and the finish chosen, but many parts are finished within 24 to 72 hours of printing. Tell us your deadline and we will tell you what is achievable.

Will finishing change the dimensions of my part?

Processes that reflow a surface or add a coating can affect a critical fit, which is why we ask you to identify tolerance-critical dimensions before finishing rather than afterwards. Dyeing is the exception — it adds no measurable thickness at all. Every finished part is inspected for dimensional accuracy and surface conformity before it leaves us.

Can you colour or paint 3D printed parts?

Yes, by dyeing or by painting. Dyeing gives consistent black across a powder-bed production batch efficiently and without changing dimensions; painting and coating give any colour and sheen — matte, satin, gloss, metallic or soft-touch — with colour matching and multi-layer options for customer-facing parts.

Do you handle production volumes?

Yes. We finish single prototypes and repeat production batches, with the batch-to-batch consistency that matters when finished parts sit next to each other in an assembly.

How much does finishing cost?

Finishing is quoted with the part, because cost depends on the process, the part size and the quantity. Add your finish requirements to an instant quote, or contact us if you are sending parts printed elsewhere.

Ready when you are

Blast polished, painted, dyed, smoothed — in-house, in the UK.

SLS shot blast polishing, A-class automotive paint, black dyeing, vibro polishing and vapour smoothing — across FDM and powder-bed parts, including parts you printed somewhere else.

Quote printing & finishing → Send parts for finishing

Printed, finished and inspected at our own ISO 9001 facility in Shipston-on-Stour, Warwickshire. Call us on 024 7736 0144.