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Introduction to SLA 3D Printing

What is SLA 3D printing?
What is SLA 3D printing?
SLA uses an ultraviolet laser that draws on the surface of liquid thermoset resin to create thousands of thin layers until final parts are formed.
Design of SLA 3D printing
Design of SLA 3D printing
Design guidelines applicable for SLA 3D printing processes. Design guidelines for specific processes. Design guidelines for specific parts.

Our SLA 3D Printing Service

Stereolithography (SLA) is an industrial 3D printing process used to create concept models, cosmetic prototypes, and complex parts with intricate geometries in as fast as 1 day. A wide selection of materials, extremely high feature resolutions, and quality surface finishes are possible with SLA.

Our <span style="color:#DA251D">SLA</span> 3D Printing Service

PRODUCTION CAPACITY

Maximum build size:

800 × 800 × 550 mm

Standard lead time:

2-3 business days

Dimensional accuracy:

± 0.5% with a lower limit of ± 0.15 mm (± 0.006")

Layer height:

25-100 um

Advantages of SLA

Accurate to CAD
Fast build times
No tooling costs
Complex geometries possible
Good surface finish

Available Materials For SLA

Material
Material Reference
Colors
Specifications / Type
Generic Resin
C-UV 9400
White
800*800*550mm
Rigid Resin
TOP31B
Black
600*600*400mm
High toughness resin
8228
Light Green
800*800*550mm
High toughness resin
Lasty-702
Yellow
800*800*550mm
Transparent resin
Crysta-8QEF1
Transparent
600*600*400mm

Post Processing For SLA

Deburr
Deburr
Painting
Painting
Plate
Plate
Dye
Dye
Sand blasting
Sand blasting
Polish
Polish
Design Guidelines For SLA
TIPS & TRICKS
Reduce weight to save costs
Add escape holes for resin in closed sections
Fillet walls and pins for extra strength.
TOLERANCES
Layer thickness is 0.1 – 0.2mm. General tolerance is +/-0.05mm.
OVERHANGS
Not a problem for SLA due to the supports. Unsupported overhangs will warp.
OVERHANGS
WALLS
SLA can manage very thin walls but HLH do not recommend anything under 0.8 – 1mm.
WALLS
HOLES & SLOTS
We recommend a minimum of 0.5mm but the larger the better especially as wall thickness or depth increases.
HOLES & SLOTS
TEXT & ENGRAVED DETAILS
Are at risk of closing up if not designedwith 0.5mm > minimum height.
TEXT & ENGRAVED DETAILS
MATING PARTS
Minimum 0.5mm gap between axel and bore or other moving parts.
MATING PARTS