SLS 3D Printing Eliminates - Aurum3D
                     What is SLS 3D Printing?
You have the option to choose from a wide range of consumer and industrial 
3D printers. Every 3D printer produces three-dimensional objects by 
depositing filament layer by layer based on computer-aided design (CAD). 
But every 3D printer is driven by a different and specific additive 
manufacturing technology. 3D printers driven by selective laser sintering 
(SLS) technology produce various items using a high-power laser as the 
primary power source. They use laser light to sinter finely-powdered filament 
lAikcec onrydloinn ga ntdo  pWoliykaipmeiddeia., “Selective laser sintering (SLS) is an additive 
manufacturing (AM) technique that uses a laser as the power source 
to sinter powdered material (typically nylon or polyamide), aiming the 
laser automatically at points in space defined by a 3D model, binding 
the material together to create a solid structure.”
SLS 3D printing is often described as a modern additive manufacturing 
technology. But the 3D printing technology is currently used widely by 
manufacturers and 3D printing service providers for the purpose of low-
volume production of components and rapid prototyping. That is why; you 
need to differential SLS 3D printing from other widely used 3D printing 
technology while comparing the 3D printers. It is also important to 
understand the important aspect of this additive manufacturing technology.
Underrsttandiing  IImporrttantt  Aspectts  off  SLS  3D  Prriinttiing  Technollogy
3D  Prriinttiing  Prrocess
This 3D printing technology produces solid items based on the powder 
sintering principle. An SLS 3D printer consolidates small particles of the 
powdered filament using a high-powerful laser. The laser produces a mass by 
sintering the powdered material based on the CAD. The 3D printer preheats 
the filament to a temperature that is below the melting point.
The preheating makes it easier for the laser to form solid parts by increasing 
the temperature level. The item to the 3D-printed is supported by the 
unfused powder filament. Hence, SLS 3D printing eliminates the need for a 
support structure. After forming the solid structure, the build chamber is 
cooled down for several minutes.
The cooling process ensures that the item retains the desired mechanical 
properties along with eliminating the chances of warping. Finally, the item is 
removed from the build chamber for post-processing. The 3D engineers clean 
the excess powder before getting the item delivered. Also, they can recycle 
and use the unfused filament in the future without escalating the overall 3D 
printing cost.
Materials/Filaments
While using an SLS 3D printer, you have the option to choose from a wide 
range of powdered filaments – plastic, ceramic, glass, and metal. Hence, you 
need to choose the SLS 3D printing filament according to the nature and 
needs of the item to be 3D-printed. However, you must remember that the 
quality of the 3D-printed object will vary according to the key attributes of 
the particles – shape, size, density, porosity, and roughness.
Many engineers opt for various types of polymer while using this type of 3D 
printer to leverage their sintering properties or behavior. They can easily 
customize the 3D-printed item’s mechanical properties by choosing the 
appropriate form of polymer. Most engineers these days avoid metals while 
working with SLS 3D printing technology. Instead, they use selective laser 
melting (SLM) technology to 3D-printed objects using metal filaments.
3D  Priintiing  Advantages
At present, SLS is one of the widely used industrial 3D printing technologies. 
As mentioned earlier, this 3D printing technology produces solid objects 
without requiring support structures. The engineers and manufacturers can 
choose appropriate filament to produce parts that resist chemicals. Also, they 
can customize the 3D-printed part’s strength, stiffness, and finishing by 
choosing from a slew of options.
SLS produces prototypes and functional parts much faster than other 3D 
printers. An engineer can use a single SLS 3D printer to produce parts with 
complex geometries and reliable mechanical properties. Also, he can use this 
3D printing technology to deliver ready-to-use parts and components with 
varying functionality, durability, and strength.
3D  Prriinttiing  Diisadvanttages SLS is one of the 3D printing 
technologies that have been 
Like other 3D printing evolving consistently. The new-
technologies, SLS also has several age SLS 3D printers feature 
shortcomings or disadvantages. advanced sintering machines like 
Often porous surfaces are cited as FORMIGA P 110. They decrease 
one of the major shortcomings of the low-volume 3D printing cost 
items produced using SLS 3D significantly by supporting larger 
printers. The engineers have to build sizes. Also, they distribute 
perform elaborate post- temperature across the build area 
processing to deliver a fully more efficiently. You must invest 
functional part that can be used in a new-age SLS 3D printer to 
for various purposes. However, produce medium-sized prototypes 
the latest SLS 3D printers reduce and functional parts with complex 
both time and cost by overcoming geometries using various 
some of these shortcomings. Also, powdered filaments.
engineers can easily leverage SLS 
3D printing technology using the 
right type of SLS 3D printer.
At present, SLS 3D printing is used widely by manufacturers to produce 
prototypes and functional parts with complex geometries and reliable 
mechanical properties. It enables engineers to produce and evaluate 
prototypes by reducing 3D printing time and cost. Also, the engineers can 
use SLS 3D printers to facilitate low-volume production of components and 
pSaLSrt sis  foonr ec olife tnhtes  afrdovman vcaerdi o3uDs  pinridnutisntgri etes c–h naoulotogmieos ttivhea,t  laeevreorsapgaec eh,i gmh-epdoiwcaelr,  
alansde rms ialista trhye.  primary energy source. That is why; this category of 3D printers 
is used only in industrial and commercial setups. Individual users find it 
challenging to install and use SLS 3D printers for home use. But the 
popularity of SLS 3D printing technology has been increasing consistently 
across industries. However, the engineers have the option to choose from 
several types of SLS 3D printers according to the nature and requirements of 
the items to be 3D-printed.
SLS 3D printing is one of the 
modern additive 
manufacturing technologies. 
SLS 3D printers are used 
widely by manufacturers to 
create custom parts and 
perform rapid prototyping 
without increasing cost. But 
you must remember that SLS 
3D printing technology, like 
other additive manufacturing 
technologies, has its own 
advantages and 
disadvantages. 

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