OJTECH

SELECTIVE LASER SINTERING

SLS 3D Printing Services

Produce durable nylon parts without dedicated support structures. SLS is a practical choice for functional prototypes, complex assemblies and low-volume end-use components.

  • No support structures
  • Functional nylon parts
  • Complex internal geometry
Send Your SLS FilesReview Design Guide
Durable SLS nylon functional parts with complex geometry

DESIGN GUIDE

Start With the Limits That Shape the Part

These values are practical starting points for quotation and design review. Final tolerance, wall thickness and orientation depend on material, geometry and critical features.

Maximum build size
380 × 280 × 380 mm
Typical tolerance
±0.3 mm
Layer thickness
0.10–0.12 mm
Minimum wall
From 0.7 mm
Minimum feature
From 0.5 mm
Available finishes
As-printed to dyed
01

Add powder escape holes

Use at least two 3–5 mm openings in enclosed cavities so loose powder can be removed after printing.

02

Control large flat surfaces

Avoid broad thin planes where possible. Add ribs or curvature to improve stiffness and reduce cooling distortion.

03

Allow moving-part clearance

Keep approximately 0.5 mm between print-in-place features so adjacent surfaces do not fuse together.

All SLS projects are quoted with a production lead time starting from 3 days.

SLS MATERIALS

Three Clear Starting Points

Select by stiffness, ductility and flexibility first. OUJI confirms the final powder, color and finishing route after reviewing the application.
PA12 SLS functional brackets and enclosures
01

PA12 Nylon

Balanced functional parts

Key traits
Strong · Stable · Chemical resistant
Colors
Natural white / Black
Lead time
From 3 days
PA11 SLS parts for ductile and impact-resistant applications
02

PA11 Nylon

Impact and fatigue resistance

Key traits
Ductile · Tough · Flexible
Colors
Natural white / Dyed colors
Lead time
From 3 days
Flexible SLS TPU bellows seals and protective components
03

TPU 90A–95A

Flexible and wear-resistant parts

Key traits
Elastic · Durable · Shock absorbing
Colors
Natural / Black
Lead time
From 3 days
Selective laser sintering powder bed process producing nylon components

HOW SLS WORKS

Powder Supports the Part While the Laser Builds It

SLS uses a laser to fuse polymer powder layer by layer. Because surrounding powder supports each layer, complex parts can be produced without dedicated support structures.
  1. 01

    No support structures

    Loose powder supports overhangs and internal features during the build.

  2. 02

    Functional nylon performance

    Printed parts provide useful strength, toughness and chemical resistance.

  3. 03

    Complex geometry freedom

    Internal channels, lattices, nested parts and moving assemblies become practical.

  4. 04

    Efficient low-volume builds

    Multiple parts can be nested together to use the available build volume effectively.

COMMON APPLICATIONS

Where SLS Adds the Most Value

01

Functional prototypes

Fit, form and load testing before production tooling.

02

End-use housings

Durable covers, ducts, clips and compact enclosures.

03

Jigs and fixtures

Lightweight manufacturing aids for assembly and inspection.

04

Moving assemblies

Snap fits, hinges and mechanisms printed as coordinated parts.