3D Printing - Surface Finishes

Get the most out of your Protolabs Partnership with your interactive guide to 3D printing surface finishes

3D PRINTING Surface Finishes

Version 1.2 | April 2024

Contents

Featured Parts

4-7

DIRECT METAL LASER SINTERING (DMLS)

43.2mm

8-14

STEREOLITHOGRAPHY (SLA)

15-22

MULTI JET FUSION (MJF)

23-25

SELECTIVE LASER SINTERING (SLS)

26-27

POLYJET

28-29

CUSTOM FINISHING: PAINT

0mm

25mm

50mm

30-31

CUSTOM FINISHING: OTHER SECONDARY SERVICES SECONDARY SERVICES: QUALITY CERTIFICATIONS AND DOCUMENTS

32

97.3mm

Welcome to our guide to 3D printing surface finishes. Depending on the additive manufacturing technology, build direction, resolution, and materials you choose, part aesthetics can be impacted. Use this guide to get a quick look at your finishing options and what you can expect when your 3D-printed parts arrive.

Note, this guide does not show all materials and finish levels. It is intended to be representative of the types of materials and finish levels offered.

0mm

25mm

50mm

75mm 100mm

2

3D PRINTING Surface Finishes

Material Matrix

Plastic Material

Technology

Unfinished

Natural

Standard

Vapour Smoothing

Production Dye Black

Custom: Paint

Custom: Other Secondary Services

ABS-Like White ABS-Like Grey ABS-Like Black

SLA SLA SLA SLA SLA SLA SLA SLA MJF MJF MJF MJF MJF

• • • • • • •

• • • • • • •

• • • • • •

• • • • • •

• • • • • • • • • • • • • • • • • • • • • • •

ABS-Like Translucent/Clear

PC-Like Translucent (Advanced High Temp)

Ceramic-Like (Advanced HighTemp)

MicroFine™ Green

True Silicone

• •

PA 11 Smooth Grey

PA 11 Vapour Smooth Black PA 12 Smooth Light Grey

• • •

• •

PA 12 Glass Beads Smooth Grey Ultrasint™ TPU-01-88A Pure Grey

Ultrasint™ TPU-01-88A Vapour Smooth Black MJF

PA 12 Smooth White

SLS SLS SLS SLS SLS SLS

• •

• •

PA 12 Vapour Smooth White PA12-Glass Filled Smooth White PA12-Carbon Filled Smooth Black

• • • • • • • • •

PA 12-Flex Pure Black TPU-88A Pure Black 3DP Silicone (60-65%)

POLYJET POLYJET POLYJET POLYJET POLYJET

Digital Black

Digital Clear/Translucent

Digital OverMold

Digital White

Metal Material

Technology

Standard

Custom: Paint

Custom: Other Secondary Services

Aluminium AlSi10Mg Cobalt Chrome F75

DMLS DMLS DMLS DMLS DMLS DMLS

• • • • • •

• • • • • •

• • • • • •

Inconel 718

Maraging Steel 1.2709

Stainless Steel 316L 1.4404

Titanium Ti6Al4V

3

3D PRINTING Surface Finishes

Direct Metal Laser Sintering

RESOLUTION: High (0.05mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Paint), Custom (Other Secondary Services) Stainless Steel 316L 1.4404

Custom Polish

Standard

4

3D PRINTING Surface Finishes

DMLS TEXT FEATURES Min. embossed details 0.5mm high and wide and 0.8mm for readable images Min. engraved details 0.5mm deep and 0.6mm wide; 1.0mm wide for readable text and clear images Stainless Steel 316L 1.4404

5

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.06mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Paint), Custom (Other Secondary Services) Aluminium AlSi10Mg

Standard Supports are removed and part gets blasted to achieve a consistent overall texture. Depending on material and resolution, you can expect roughness values of 0.004 to 0.010mm Ra.

Unfinished part after support structures removal.

Unfinished part with support structures.

6

3D PRINTING Surface Finishes

Aluminium AlSi10Mg

Custom Polish Surface roughness reduced to RA2.

Custom Anodising

Custom Machined Surface

7

3D PRINTING Surface Finishes

Stereolithography

RESOLUTION: Normal (0.1mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Paint, incl. Clear), Custom (Other Secondary Services), Natural, Unfinished ABS-Like Translucent/Clear

Custom

Standard

Natural

Unfinished

8

3D PRINTING Surface Finishes

ABS-Like Translucent/Clear

Custom A clear coat is applied. All part surfaces will appear clear and glossy. Depending on what is requested, layer lines may still be visible (prototyping finish) or removed (design finish).

Standard Parts with standard finish are grit

Natural With natural finishing, you get varying aesthetics based on build orientation. Parts are not grit blasted. All up-facing part surfaces will appear glossy.

Standard With unfinished, you get varying aesthetics based on build orientation. Dots or standing “nibs” remain evident on the bottom of the part from the support structure remnants.

blasted, and will appear matte or frosted in appearance. Standard finish will make this material translucent, not clear.

9

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.1mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Paint, incl. Clear), Custom (Other Secondary Services), Natural, Unfinished PC-Like Translucent (Advanced High Temp)

Pre-thermal Cure

10

3D PRINTING Surface Finishes

THERMAL CURING Boost heat deflection temperature by thermal curing parts. Once the PC- like advanced high-temp material is thermal cured, part appearance will transition from a light tan to darker amber. Note, Ceramic-Like (Advanced High Temp) parts can also be thermal cured. PC-Like Translucent (Advanced High Temp)

Post-thermal Cure

11

3D PRINTING Surface Finishes

ABS-Like Grey RESOLUTION: Normal (0.1mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Paint), Custom (Other Secondary Services), Natural, Unfinished

Standard Supported surfaces are sanded, and the entire part is finely blasted for a consistent look. Note that layer lines are still present.

Natural Supported surfaces are sanded down to eliminate the support nibs.

Unfinished Dots, or standing nibs, remain evident on the bottom of the part from the support structure remnants.

12

3D PRINTING Surface Finishes

ABS-Like Black RESOLUTION: Normal (0.1mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Paint), Custom (Other Secondary Services), Natural, Unfinished

Downfacing Our standard process is to paint the downfacing surface after support removal.

Upfacing Upfacing sides will have a glossy appearance.

If final blasting is wanted, this must be specified while ordering (external surface will become grey).

13

3D PRINTING Surface Finishes

Stereolithography Microfine TM

RESOLUTION: Micro (0.025mm layer thickness) AVAILABLE FINISHES: Custom (Other Secondary Services), Natural, Unfinished MicroFine TM Green

Standard Standard finish includes blasting, which may damage the fine structures for which this material usually gets ordered, so it is not suggested in most cases.

Natural Supported surfaces are sanded down to eliminate the support nibs.

Unfinished Dots, or standing nibs, remain evident on the bottom of the part from the support structure remnants.

14

3D PRINTING Surface Finishes

Multi Jet Fusion

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Standard, Production Dye Black, Custom (Other Secondary Services) Standard (surface roughness, depending on orientation: Ra = 10-25 µm; Rz = 60-100 µm) PA12 Smooth Light Grey

Standard

15

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Production Dye Black PA12 Smooth Light Grey

Tapped and threaded inserts are available upon request.

Production Dye Black

16

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Standard, Production Dye Black, Custom (Other Secondary Services) Standard (surface roughness, depending on orientation: Ra = 10-25 µm; Rz = 60-100 µm) PA11 Smooth Grey

Standard

17

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Vapour Smooth, Custom (Other Secondary Services) Vapour Smooth (surface roughness, depending on orientation: Ra = 5-10 µm; Rz = 20-45 µm) PA11 Vapour Smooth Black

Vapour Smooth

18

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Vapour Smooth with Texture* Wide range of available textures, please specify requirements in an RFQ PA11 Vapour Smooth Black

Vapour Smooth with texture

19

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Standard, Production Dyed Black, Custom (Other Secondary Services) Standard (surface roughness, depending on orientation: Ra = 10-25 µm; Rz = 60-100 µm) PA12 Glass Beads Smooth Grey

Standard

20

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Other Secondary Services) Standard (surface roughness, depending on orientation: Ra = 20-30 µm; Rz = 120-160 µm) Ultrasint™ TPU-01 - 88A Pure Grey

Standard

21

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.08mm layer thickness) AVAILABLE FINISHES: Vapour Smooth, Custom (Other Secondary Services) Vapour Smooth (surface roughness, depending on orientation: Ra = 2-8 µm; Rz = 8-25 µm) Ultrasint™ TPU-01 - 88A Vapour Smooth Black

Vapour Smooth

22

3D PRINTING Surface Finishes

Selective Laser Sintering

RESOLUTION: Normal (0.1mm layer thickness) AVAILABLE FINISHES: Standard, Production Dye Black, Custom (Paint), Custom (Other Secondary Services) Standard (surface roughness, depending on orientation: Ra = 10-25 µm; Rz = 60-140 µm) PA12 Smooth White

Standard Parts are blasted to remove all powder and get a consistent overall texture.

Production Dye Black Parts are dyed black through an high quality dyeing process. The dye possesses several certifications (Biocompatability, both Cytotoxity and skin irritation, colour fastness, scratch resistance and light & heat resistance) and is therefore a great choice particularly for high requirement end-use parts.

23

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.1mm layer thickness) AVAILABLE FINISHES: Vapour Smooth, Vapour Smooth Production Dye Black, Custom (Paint), Custom (Other Secondary Services) Vapour Smooth (surface roughness, depending on orientation: Ra = 5-15 µm; Rz = 25-65 µm) PA12 Vapour Smooth White

Vapour Smooth

Vapour Smooth Production Dye Black

24

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.1mm layer thickness) AVAILABLE FINISHES: Standard Standard (surface roughness, depending on orientation: Ra = 10-25 µm; Rz = 60-120 µm) PA12-Glass Filled Smooth White

Standard

25

3D PRINTING Surface Finishes

Polyjet

RESOLUTION: Normal (0.02mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Other Secondary Services) Digital Photopolymer (Clear Rigid)

26

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.03mm layer thickness) AVAILABLE FINISHES: Standard, Custom (Other Secondary Services) 3D Printed Silicone (60-65%)

Standard

27

3D PRINTING Surface Finishes

Custom Finishing: Paint

Finishing Options

RESOLUTION: Normal (0.1mm layer thickness) FINISH: Custom blue paint with texture added ABS-Like Grey

Painting Masking Texturing

Custom finishing options are possible for most plastic 3D printing processes. Surface prep is needed in order to eliminate appearance of layer lines through paint. There are many more paint options available. Upon receival of RFQ with specific requirements (e.g. colour, surface roughness, aesthetic surfaces…), Protolabs will review them and prepare an individual offer.

28

3D PRINTING Surface Finishes

RESOLUTION: Normal (0.1mm layer thickness) FINISH: Standard finish with red paint PA12 Smooth White

29

3D PRINTING Surface Finishes

Custom Finishing: Other Secondary Services - Plastics

For plastic materials further Secondary Operations are available upon request, including:

Assembly (e.g. bonding, screwing)​ Surface finishes (polishing)​ Surface Textures Dyeing (black and/or all RAL colours)​ Infiltration (transparent & black)​ Taps, metal inserts & threads​ Cut & glue large sized parts Integration of different technologies CAD work

30

3D PRINTING Surface Finishes

Custom Finishing: Other Secondary Services - Metals

For metal materials further Secondary Operations are available upon request, including:

M achining up to fully 5-axis CNC machining (milling)​ Manual polishing (depending on geometry)​ H eat treatment (stress relief, hardening of 1.2709)​ Reverse engineering, 3D scan (STL files)​ Assembly​ Welding ​ Anodising Surface finishes (anodising, TiN-coating)​ D esign consultations for 3D printing (in-house or at customer site; trainings; workshops)​ Design of lattice structures (lightweight, etc.)​ O ther services can be defined with external supplier (laboratory tests, laser marking, etc.)

31

3D PRINTING Surface Finishes

Quality Certifications and Documents

Certified according EN ISO 13485, ISO 9001 & DNV GL-STB203

M easurement reports, First Article Inspections (3D scans)​ CoC, material certificates​ Mechanical testing (tensile, porosity, hardness, surface)​ Form & fit testing​ Laboratory testing (chemical analysis, micro-structure, CT scans)

32

3D PRINTING Surface Finishes

Proto Labs Germany GmbH Hermann-Oberth-Straße 21 85640 Putzbrunn Deutschland Contact Us P +44 (0) 1952 683047 E customerservice@protolabs.co.uk

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