FUNCTION + GEOMETRY
SLS
Functional nylon, complex support-free geometry, ducts, snap fits and low-volume batches.
SLS 3D PRINTING · FUNCTIONAL NYLON · NO SUPPORT STRUCTURES
SLS 3D Printing Services for Functional Nylon Parts
Produce durable nylon prototypes, complex assemblies and low-volume functional parts without dedicated support structures.
- PA12, PA11 and selected filled nylon options
- Support-free complex geometry
- One-off prototypes through nested batch production
- Finishing and inspection matched to requirements
Encrypted upload · Confidential handling · Engineer review
PROCESS PRIORITYFUNCTION + FREEDOMPA12 / PA11 / BATCH
PA12BALANCED NYLON
PA11DUCTILITY & IMPACT
0DEDICATED SUPPORTS
QADRAWING-LED INSPECTION
01 / PROCESS FIT
When to Choose SLS 3D Printing
Choose SLS when functional nylon behavior and support-free geometric freedom matter more than a presentation-smooth surface. The powder bed supports complex geometry, while powder removal, thermal behavior and final surface requirements remain part of the engineering review.
01
Functional Housings
Combine ribs, clips, cable channels, mounting features and undercuts in one durable nylon component. This is useful when assembly behavior matters more than a presentation-smooth surface.
- TYPICAL PARTS
- Housings · covers · robotics components
02 / PROCESS SELECTION
Choose the Route Around What the Part Must Prove
Mockup compares geometry, surface, material behavior, quantity and critical dimensions before recommending a process.
DETAIL + APPEARANCE
SLA
Fine visual detail, smooth presentation surfaces, clear parts and master patterns.
ALTERNATIVE ROUTES
MJF / FDM / CNC / Molding
Alternative routes when batch economics, large size, tight machining or sustained production dominate.
03 / SLS WORKFLOW
How SLS 3D Printing Works
A controlled route continues well beyond the powder-bed build.
CAD & DFM Review
Review walls, channels, clearances, load direction, powder escape and critical dimensions.
Orientation & Nesting
Plan build position, identification, density and revision control.
Powder-Bed Printing
A laser fuses polymer powder layer by layer while surrounding powder supports the geometry.
Controlled Cooling
Cool the build before excavation to manage thermal and dimensional risk.
Depowdering & Blasting
Remove loose powder from surfaces, holes, pockets, channels and moving interfaces.
Finish & Inspection
Complete dyeing, smoothing, machining, inserts, assembly and agreed verification.
04 / SLS MATERIALS
Select Nylon Around the Actual Application
A material-family name alone does not define final performance. Review load, impact, temperature, chemicals, moisture, repeated assembly and expected service life before confirming the grade and build route.
01
PA12 Nylon
A balanced option offering useful strength, toughness, dimensional stability and chemical resistance. It is commonly selected for housings, brackets, clips, ducts and fixtures.
- GRADES / OPTIONS
- Housings · brackets · clips · ducts · fixtures
05 / TECHNICAL GUIDANCE
Confirm SLS Capability from the Actual Model
Machine, material, size, geometry, orientation and finishing determine practical capability.
SpecificationDescription
Build volumeConfirmed according to selected machine
Layer thicknessSelected according to machine and material
Dimensional capabilityGeometry-, size- and orientation-dependent
Walls, holes & channelsReviewed from span, depth, material and powder-removal access
Moving-part clearanceConfirmed according to geometry and function
Standard surfaceMatte / slightly grainy; bead blasting available
Secondary operationsDyeing, smoothing, machining, sealing and inserts by review
Inspection & lead timeDrawing- and application-specific; confirmed at quotation
06 / SURFACE & FINISHING
Plan the Delivered Surface, Not Only the Print
Finishing can change appearance, sealing behavior, edge definition and dimensions. Protect critical interfaces in the process plan.
Depowdering & Bead Blasting
Remove loose powder from surfaces, holes, pockets and channels, then create a more uniform matte appearance.
Dyeing & Painting
Create black or specified-color parts with batch expectations and coating thickness defined.
Smoothing & Sealing
Reduce roughness or improve leak behavior using a route reviewed against geometry and acceptance criteria.
Machining & Inserts
Finish precision holes, datums, sealing faces and reusable fastening points.
07 / DESIGN FOR SLS
Design the Part to Print, Clean, Assemble and Perform
Support-free does not mean design-free. Powder removal, thermal behavior, motion and finishing still require deliberate DFM.
Keep Walls Consistent
Use gradual transitions and review large solid masses.
Provide Powder Escape
Make openings practical for the cavity volume and cleaning route.
Clean Internal Channels
Avoid inaccessible blind passages without a confirmed strategy.
Allow Moving Clearance
Never use CAD zero clearance for intended motion.
Design Snap Fits by Material
Consider deflection, root radius, cycles and build orientation.
Plan Batch Identification
Add durable part, revision and variant markings.
Define Sealing Early
State fluid, pressure, temperature, duration and allowable leakage.
Share Loads & Environment
Provide impact, fatigue, chemicals, moisture, UV and service life.
Account for Finishing
Define fits and inspection in the final delivered condition.
08 / QUALITY CONTROL
Inspect SLS Parts Around Their Intended Role
A development duct, production fixture and customer-facing low-volume component require different evidence. Mockup matches dimensional, material, finish and functional inspection to the drawing, project risk and intended end use.
A development duct, production fixture and customer-facing low-volume component require different evidence. Mockup matches dimensional, material, finish and functional inspection to the drawing, project risk and intended end use.
- ✓Dimensional inspectionCritical features checked using suitable calipers, gauges, CMM, scanning or assembly tests.
- ✓Build and material traceabilityLot, orientation and project records agreed according to risk and quantity.
- ✓Finish verificationReview residual powder, surface uniformity, color, inserts and fit after finishing.
- ✓Functional evidenceAirflow, leakage, assembly or project-specific tests performed when specified.
09 / PROJECT EXAMPLES
Representative SLS Manufacturing Routes
Final material, tolerance, finish and inspection requirements are confirmed for each project.
PA12 / SNAP FIT
Snap-Fit Electronics Housing
PA12 engineering batch with bead blasting, dyeing and mating-surface assembly checks.
DUCT / INTERNAL PATH
Internal Air Duct
Single-piece curved airflow path designed with accessible powder-removal openings.
NESTED BATCH
Nested Robotics Components
Brackets, sensor mounts, cable guides and covers sharing production builds across variants.
LOW VOLUME
Bridge-Production Components
Functional PA12 or PA11 parts supplied while injection-molding tooling remained in development.
FACTORY TOOLING
Manufacturing Fixture
Lightweight nylon fixture with inserts and selected machined locating features.
10 / COMPLETE SLS ROUTE
From Powder Bed to a Verified Functional Part
Mockup coordinates DFM, orientation, nesting, printing, controlled cooling, depowdering, finishing, inserts, assembly and inspection as one reviewed route. Critical dimensions and the delivered finish are agreed before production.
Get an SLS quote↗PRINT / CLEAN / FINISH / VERIFYCONNECTED CAPABILITIES
What engineers ask.
What is SLS 3D printing?+
Selective Laser Sintering uses a laser to fuse polymer powder layer by layer. Surrounding powder supports the geometry before cooling, depowdering and finishing.
Does SLS need support structures?+
Dedicated supports are normally unnecessary, but every enclosed region and moving interface still needs practical powder-removal access.
What materials are used for SLS?+
Common options include PA12, PA11, selected filled nylons and flexible powders such as TPU. Availability depends on the manufacturing route.
Is SLS suitable for functional or end-use parts?+
Yes, when the selected material, geometry, environment, finish and validation plan match the application.
Can SLS make channels or moving assemblies?+
Yes, provided channels can be depowdered and sufficient clearance prevents intended moving surfaces from fusing.
Are SLS parts waterproof or airtight?+
Not automatically. Define fluid or gas, pressure, temperature, duration and allowable leakage; sealing and testing may be required.
Can SLS parts be dyed, painted, smoothed or machined?+
Yes. Finishing and machining should be planned before printing because they can affect dimensions, edges and assembly fits.
How accurate is SLS?+
Capability depends on size, material, geometry, thermal behavior, orientation and finishing. Identify critical dimensions on an engineering drawing.
Is SLS better than SLA, MJF or FDM?+
No process is universally better. SLS favors functional nylon and complex support-free geometry; SLA favors visual detail, while MJF and FDM may fit different batch, surface, size or cost priorities.
What files should I provide?+
STEP or STP is preferred. Include a drawing for tolerances, fits, threads, sealing, finish and inspection, plus quantity and application conditions.
SLS ENGINEERING REVIEW
Upload my SLS part ↗Get an SLS 3D Printing Quote
Send your CAD model, drawing, quantity and application requirements. We will review material, walls, powder removal, clearances, nesting, finish and critical dimensions.