Selective Laser Sintering (SLS) 3D Printing Services

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  • PA 11, PA 12, Flex TPU, Alumide
  • Manufacturing From 3 Business Days

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SLS 3D Printing Capabilities

Selective Laser Sintering (SLS) is one of the most popular 3D printing technologies that produces highly accurate and durable parts that are perfect for end-use, low-to-mid volume production, or rapid prototyping.

Though SLS provides high detail quality and perfect production repeatability, it is one of the most inexpensive options for industrial 3D printing services because it can build parts in bulk without support structure requirements. SLS 3D printed parts can be post-processed by media tumbling and colouring.

  • Lead time: 3 days
  • Build volume: up to 340 x 340 x 605 mm (320 x 320 x 580 mm recommended)
  • Layer thickness: ~0.1 mm and for water-tight parts 1.5 mm
  • Minimum feature size: 0.5 mm
  • Tolerance: ±0.3% (± 0.3 mm)

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Multiple designs for different parts can be imported at the same time to produce a single quote. In less than a minute, a detailed cost estimation appears on the screen.

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Choose the process

First, select the manufacturing process you require. You can then choose from over 70 materials, both metals and plastics, and from a wide range of finishes and certifications.

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Once you have selected the required options, all you need to do is confirm the order and pay for it on the secure payment platform. Your design will be analysed by engineers.

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Within a short amount of time, you will receive the parts you ordered directly to your shipping address. You can track your package at any time in your personal account.

Advantages of SLS with Xometry

Massive Capacity

Massive Capacity

We can quickly produce both prototypes and large batches thanks to the largest manufacturing network in Europe, with over 2,000 vetted partners

Fast Production

Fast Production

You will get your 3D printed parts fast delivered in as fast as 3-5 days.

Quality Assurance

Quality Assurance

We have strong QA procedures, controlled by an in-house team of QA engineers, which allows us to deliver high quality parts.

Engineering Check & Status Updates

Engineering Check & Status Updates

All designs are checked by engineers before they’re sent for 3D printing. After confirming your order, you will receive status updates on your production.

SLS 3D Printing Materials

Rigid Plastics
  • Alumide® / Nylon 12 (PA 12) filled with aluminium
  • Nylon 11 / PA 11
  • Nylon 12 (PA 12) glass-filled
  • Nylon 12 / PA 12 (SLS, MJF)
  • Nylon 12 flame retardant / PA 2241 FR
  • PA 11 Food Grade
  • PA 12 Food Grade
  • Polypropylene (PP)
Flexible Plastics
  • Flex TPU

Finishing Options for SLS 3D Printing

SLS Materials for Special Applications

Food-Grade

Food-grade PA 11 and PA 12 are highly regarded food-compliant materials that have gained popularity along with SLS 3D printing. These materials possess exceptional biocompatibility and are specifically formulated to meet the stringent requirements for producing food-related objects.

Xometry offers two food-compliant materials compatible with SLS:

  • PA 12 – in white colour
  • PA 11 – in blue colour

 

 

 

Flame-Retardant

PA 2241 FR is a polyamide powder infused with a concentrated flame-retardant compound. This high-performance material proves to be highly advantageous when it comes to producing flame-resistant components possessing remarkable mechanical characteristics. This material is hence suitable for aeronautics and aerospace applications.

Pros & Cons of SLS 3D Printing

AdvantagesConsiderations
Free form design: doesn’t need support featuresLimited material and colour choice
Versatile, durable, flexible and chemical resistant material (Nylon)Surface roughness (however, could be reduced by media tumbling)
Scalable into seriesWarping issues for large feature
Fast: Xometry can deliver them in just 3 daysLimited post-processing options
Cheap, especially for small series

SLS Manufacturing Specifications & Capabilities

SLS HP MJF SLA FDM Carbon DLS DMLS Polyjet

Lead time

3 days

3 days

7 days

8 days

5 days

5 days

7 days

Build volume

up to 340 x 340 x 605 mm, but usually, we recommend the maximum size of 320 x 320 x 580 mm

up to 380 x 284 x 380 mm, while we normally recommend the maximum size of 356 x 280 x 356 mm

• 145 × 145 × 185 mm (Standard)
• up to 736 x 635 x 533 mm (Industrial)

• 350 x 350 x 350 mm (Standard)
• 900 x 600 x 900 mm (Industrial)

up to 119 x 189 x 300 mm. Recommended size: Within 100 x 100 x 150 mm

400 x 400 x 400 mm

up to 490 mm x 391 mm x 200 mm

Layer thickness

~0.1 mm and for water-tight parts 1.5 mm, when wall thickness is higher

~0.08 mm

min 0.02

~0.05-0.3 mm

~0.1 mm

0.02 – 0.08 mm depending on the material

0.04 mm

Minimum feature size

0.5 mm

0.5 mm

0.2 mm

up to 0.2 mm

0.5 mm

0.75 mm for cosmetic features, 1.5 mm for structural features

1.2 mm or greater for rigid. 2 mm or greater for rubber-like

Tolerance

±0.3% (± 0.3 mm)

±0.3% (± 0.2 mm)

• ±0.5% (±0.2 mm) (Standard)
• ±0.5% (±0.15 mm) (Industrial)

±0.5% (±0.5 mm) (Standard & Industrial)

±0.1% (±0.1 mm). However, tolerances are not guaranteed on the first attempt at a new design.

±0.2% (±0.1 – 0.2 mm)

±0.1 mm for the first dozens of mm is typical, plus ±0.05 mm for every mm thereafter

Description

One of the most popular and inexpensive technologies for industrial 3D printing

A technology that produces highly accurate and durable parts at fast speeds, especially compared to other powder bed fusion technologies

A technology that produces extremely accurate and high-resolution parts

Widely known for a great material selection, accuracy, and possibility to print large parts

A breakthrough technology that uses digital light projection, programmable liquid resins, and oxygen-permeable optics to produce parts with exceptional durability, resolution, and surface finish

Metal 3D printing technology. Selectively fuses a fine metal powder in aluminium or stainless steel

Polyjet is a rigid photopolymer 3D printing technology that produces high-detailed models

Support structures

No

No

Yes, for overhanging features

Yes, for overhanging features

Yes, for overhanging features

Yes, for overhanging features

Yes, for overhanging features

Read more about SLS

Read more about HP MJF

Read more about SLA

Read more about FDM

Read more about Carbon DLS

Read more about DMLS

Read more about Polyjet

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