MATERIAL SPECIFICATIONS

We offer an online quote and order for Stereolithography (SLA) or Selective Laser Sintering (SLS) parts according to the following specifications.
Stereolithography (SLA)
Finishing level
SLA parts ordered via ARRK’s Instant Online Quote service will be supplied as ARRK’s standard grade C finish with support removal and bead blast only. Build layers may still be visible.
Maximum part size
500 x 500 x 500mm

Large SLA parts can be built in sections but via our manual quotation service.
Minimum wall thickness
All SLA materials are 0.5mm. Reduced strength of 1mm or below.
Minimum order value
£30
Online SLA materials available
  • Xtreme
  • ClearVue Free SL 7870
  • 25
Tolerances
+/- 0.15 per 100mm (Tighter tolerances can be achieved subject to discussions with one of our projects team.)
Material Specifications
Selective Laser Sintering (SLS)
Finishing level
SLS parts will be supplied straight off the machine with powder removed and bead blasted. Build layers may still be visible.

Need your SLS parts in black? We are able to offer customers the option of having their SLS parts in black. Your selection can be made once you have uploaded your parts. If you require a greater level of finish, please contact a member of our projects team at [email protected] or telephone +44 1452 727 788
Maximum part size
270 x 300 x380mm – Nylon Glass Filled & Nylon PA
270 x 300 x 200mm – TPU & EX

Large SLS parts can be built in sections but via our manual quotation service.
Minimum wall thickness
All SLS materials are 0.5mm, apart from TPU which is 1.5mm
Reduced strength of 1mm or below
Minimum order value
£30
Online SLS materials available
  • Nylon Glass Filled - Natural
  • Nylon PA - Natural
  • TPU - Natural
  • Nylon Glass Filled - Black
  • Nylon PA - Black
  • TPU - Black
  • EX
Tolerances
+/- 0.25 per 100mm (Tighter tolerances can be achieved subject to discussions with one of our projects team.)
Material Specifications