Selective laser sintering

SLS 3D Printing

A laser fuses nylon powder layer by layer, and the unfused powder holds the part up. No supports means no support scars, no design compromise and geometry no other process can reach.

±0.3 % accuracyNo supports at allNylon 12 and compositesNested batch production
SLS 3D printed nylon parts
±0.3 %Dimensional accuracy
0.1 mmLayer thickness
0 supportsStructures to remove
IsotropicProperty direction
A decade in the field

Trusted, recognised and featured

Ashok Leyland
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TVS Motor Company
Godrej
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IIT Bombay
IIT Jammu
IIT Tirupati
Indian Institute of Science
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KLE Technological University
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Ministry of Science and Technology, India
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3D Printing Industry
Nylon parts being recovered from an SLS powder cake
What it is

The Powder Is the Support

An SLS machine spreads a thin layer of nylon powder, a laser traces and sinters the cross-section, the bed drops and the next layer goes down. The powder that was not sintered stays exactly where it is, and it holds every overhang, every undercut and every unsupported island in the build.

Nothing has to be designed around a support structure, because there are none. Parts can nest in three dimensions inside the build volume, so a batch of fifty costs far less per part than a batch of one.

Why this process

Where SLS Wins

The process to choose when the geometry is the hard part.

Total geometric freedom

Internal channels, lattices, living assemblies printed already assembled. If you can model it, it prints.

Near-isotropic strength

Sintered parts are far less directional than extruded ones — the Z axis is not the weak axis it is in FDM.

Nesting pays for itself

Parts stack in 3D inside the build chamber. Volume pricing works here in a way it does not on a build plate.

A finish that takes dye

The natural matte powder surface accepts colour dyeing evenly — a uniform black or a house colour, no paint.

At a glance

Process Specification

ParameterWhat you get
Dimensional accuracy± 0.3 % (± 0.3 mm lower limit)
Layer thickness0.1 mm
Minimum wall thickness0.7 mm (1.0 mm recommended)
Minimum clearance0.5 mm between moving surfaces
Escape holes≥ 5 mm for enclosed volumes, so powder can be removed
MaterialsNylon 12 (PA12); glass- and mineral-filled grades on request
Finish as printedUniform matte, slightly granular
Available finishesBead blast, dye (black and colours), sealing, painting
Typical quantities1 – 500 parts
Applications

What People Send Us

Complex housings

Enclosures with integrated clips, channels and mounts as one part.

Ducting and manifolds

Smooth internal passages that no support could ever be pulled out of.

Drone and UAV structures

Light, stiff, and complex — the three things SLS does at once.

Functional test parts

Snap fits, living hinges and mechanisms that need real nylon behaviour.

Medical and lab fixtures

Autoclavable geometry with no crevices left by supports.

Nested production batches

Fifty of something small, priced as a batch and not as fifty jobs.

How it works

Four Steps From File to Part

The same route for every process on this page.

01 · Upload your CAD

Pick a manufacturing process, upload the 3D file and tell us the quantity and finish.

02 · Get a DFM analysis

We come back with a design-for-manufacturability review and a price — not just a price.

03 · Manufacturing begins

Approve the quote and the job goes on the floor. You are told when it starts, not only when it ends.

04 · Parts are shipped

Packed, tracked and shipped anywhere in India, with the tracking number in your inbox.

Everything else we make parts with

Other Manufacturing Services

Send us the part

Upload the file and tell us the quantity. You will get a design-for-manufacturability review and a price back — not just a price.

Chat with us