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What is SLS :
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SLS also known as Selective Laser Sintering, primarily used
to quickly produce three dimensional parts, layer by layer,
from powdered materials. The CO2 Laser provides a concentrated
heating which welds (sinters) the powder within a precisely
controlled chamber. SLS has distinctive advantage of having
wide variety of materials that can be suitable for functional
analysis.
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| Advantages
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The
SLS polyamide (Nylon) material allows the production of fully
functional prototypes with high mechanical and thermal resistance
and suitable for snap fits, living hinges features.
Glass
filled Nylon is suitable for functional applications that require
strength & rigidity under the extreme conditions of high
temperature or chemical agents.
Rubber like flexible
parts can be directly made using elastomer polymer Somos 201,
shore A hardness 75, suitable for seals, gaskets & high
temperature applications.
Durable
metal parts and mold inserts direct from CAD model using ST200
similar to P20 steel.
Low
density complex investment casting patterns - directly from
CAD files using Cast form PS.
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Disadvantages:
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Typical
SLS parts have little rough grainy & porous surface finish
which is not as smooth as SLA but acceptable for most of applications
but parts can be easily primed and finished to smooth level.
The
larger shrink rates of SLS increase the tendency for the prototype
to warp, bow or curl subject to the part geometry.
SLS
features detail is not as crispy and sharp as produced by SLA.
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Build
Size:
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340 x 340 x 560mm
Large parts can be easily made in sections and joined together
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Feature
Size:
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Minimum wall section or feature is recommended
not to be smaller than 1mm. If you have any Ribs, Bosses, Lettering
or wall sections less than recommend size, may not form at all.
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Layer
Thickness:
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Generally SLS parts are made with 0.15 to 0.2
mm layer thickness depends upon the material used
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Price
Factor: |
Multi pieces of same part are much cheaper than
ordering single piece. Even various SLS models ordered at the
same time as a single batch are much cheaper to make than ordering
separately.
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Materials:
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Please check :: SLS
specification link :: for downloading different SLS material
property sheets.
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How SLS
Works: |
Please check :: Help + FAQ
:: Link for detailed information about SLS process.
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