Industrial 3D Printing Services: Metal, Resin & Plastic Parts
At AS Prototypes, we offer an extensive array of industrial 3D printing services, including SLA resin, SLS nylon, HP MJF, DMLS/SLM metal, FDM, and Micro-Nano DLP technologies. Our engineering-driven workflow guarantees dimensional accuracy down to ±0.05 mm, functional material performance, and reliable 4 to 8 business days turnaround for mission-critical prototypes.
Core Industrial Additive Manufacturing Technologies
From micron-level cosmetic masters to flight-ready titanium assemblies, select the optimal 3D printing process engineered for your specific application requirements:
SLA · HIGH-DETAIL RESINSLA 3D Printing
Stereolithography utilizes UV lasers to photopolymerize liquid resin into solid parts layer by layer. Achieves razor-sharp features, smooth surface finish (Ra 0.8–1.6 μm), and tight tolerances down to ±0.10 mm. Ideal for concept models, clear lenses, and master patterns.
SLS · FUNCTIONAL NYLONSLS 3D Printing
Selective Laser Sintering fuses powdered engineering polyamides (PA12, PA12-GF, TPU) with CO2 lasers. Eliminates support structures for complex internal lattices, snap-fits, and living hinges with durable near-isotropic mechanical properties.
MJF · HIGH-DENSITY NYLONHP Multi Jet Fusion (MJF)
HP Multi Jet Fusion deposits liquid detailing inhibitors and infrared thermal fusing to produce high-density, waterproof PA12 components. Balanced mechanical strength, airtight pore structures, and zero support requirements make it premier for production runs.
DMLS / SLM · DIRECT METALMetal 3D Printing (DMLS / SLM)
Direct Metal Laser Sintering utilizes high-power fiber lasers to fuse spherical metal powders layer by layer. Achieves 99.8%+ dense engineering components in Titanium (Ti-6Al-4V), Aluminum (AlSi10Mg), 316L Stainless, and Maraging Tool Steel with conformal cooling.
FDM · THERMOPLASTICSIndustrial FDM 3D Printing
Fused Deposition Modeling extrudes engineering thermoplastics including ABS, ASA, Polycarbonate (PC), and high-performance PEEK/PA-CF. Engineered for large build envelopes, durable assembly fixtures, check gauges, and functional shop-floor prototypes.
DLP · HIGH-RESOLUTION MICRO-DETAILMicro-Nano DLP (Red Wax)
Digital Light Processing utilizing high-resolution projector engines and micro-wax formulations with layer heights down to 15–25 μm. Delivers razor-sharp edge crispness, micro-text, and ultra-smooth surface finishes for precision electronic connectors and fluidic test manifolds.
Industrial 3D Printing Process Selection Guide
Compare achievable dimensional tolerances, build envelopes, and surface characteristics across our additive manufacturing technologies:
| Technology | Primary Engineering Materials | Standard Tolerance (ISO 2768-m) | Min Wall Thickness | Max Build Envelope | Surface Finish (Ra) | Key Advantage |
|---|---|---|---|---|---|---|
| SLA (Stereolithography) | Standard Resin, ABS-like, Clear Resin, High-Temp Ceramic | ±0.10 mm (or ±0.15%) | 0.6 mm | Up to 2,100 × 800 × 800 mm | Ra 0.8 – 1.6 μm | Ultra-smooth cosmetic finish, razor-fine detail |
| SLS (Laser Sintering) | Nylon PA12, Glass-Filled PA12-GF, Flexible TPU | ±0.15 mm (or ±0.20%) | 0.8 mm | Up to 600 × 600 × 800 mm | Ra 3.2 – 6.3 μm | Self-supporting, near-isotropic strength, snap-fits |
| DMLS / SLM (Metal) | Ti-6Al-4V Gr 5, AlSi10Mg, 316L, 18Ni300 Steel | ±0.10 mm (±0.010 mm with CNC finish-machining) | 0.5 mm | Up to 450 × 450 × 500 mm | Ra 4.5 – 8.0 μm | Full 99.8%+ density, conformal cooling channels |
| DLP High-Detail Red Wax | Micro-fine acrylate wax resins | ±0.03 mm | 0.3 mm | Up to 192 × 108 × 200 mm | Ra 0.4 – 0.8 μm | Micro-feature resolution, crisp sharp edges |
| Vacuum Casting (PU) | PU resins mimicking ABS, PC, POM, Rubber 30A–85A | ±0.15 mm / 100mm | 0.8 mm | Up to 1,800 × 1,000 × 600 mm | Ra 0.8 – 3.2 μm | Cost-effective 10–100 batch runs, molded-in color |
Engineering Materials Matrix & Mechanical Properties
Carefully sourced, tested raw resins, nylon powders, and atomized metal spherical powders with verified material composition:
| Material Grade | Category & Base Polymer/Alloy | Tensile Strength (MPa) | Elongation at Break (%) | Heat Deflection Temp (HDT @ 0.45 MPa) | Best Applications |
|---|---|---|---|---|---|
| Somos 8000 / EvoLve | SLA White ABS-Like Resin | 45 – 52 MPa | 12 – 16% | 56 °C (up to 85°C thermal cure) | Functional electronic housings, snap-fit prototypes |
| WaterShed XC 11122 | SLA Optically Clear Resin | 50 – 54 MPa | 8 – 11% | 50 °C | Fluid manifolds, lenses, lighting pipes, transparent covers |
| Somos PerFORM | SLA Ceramic-Composite Resin | 68 – 78 MPa | 1.1 – 1.5% | 268 °C | Wind tunnel testing models, high-temperature tooling |
| PA12 (Nylon) | SLS Polyamide Powder | 48 – 54 MPa | 18 – 24% | 163 °C | End-use drone frames, automotive brackets, durable hinges |
| PA12-GF (Glass-Filled) | SLS Glass-Bead Reinforced Nylon | 50 – 56 MPa | 5 – 7% | 175 °C | High-stiffness enclosures, pump impellers, thermal brackets |
| Ti-6Al-4V Grade 5 | DMLS Titanium Alloy | 1,050 – 1,180 MPa | 10 – 14% | Up to 400 °C | Aerospace structural brackets, surgical implants, lightweighting |
| AlSi10Mg | DMLS Aluminum Alloy | 330 – 380 MPa | 7 – 10% | Up to 200 °C | Custom heat exchangers, automotive intake ducting |
| 18Ni300 Maraging Steel | DMLS Tooling Steel (50–54 HRC) | 1,950 – 2,050 MPa | 2 – 4% | Up to 490 °C | Plastic injection mold cores with conformal cooling channels |
Practical DFM Guidelines for Additive Manufacturing
Adhering to real-world Design for Additive Manufacturing (DfAM) constraints prevents print failure, minimizes support scarring, and ensures tight assembly fit:
Supported vs. Unsupported Walls
Maintain minimum 0.8mm for supported walls in SLA and SLS. For freestanding unsupported vertical walls, increase thickness to at least 1.2mm to 1.5mm to avoid warping during thermal or UV curing.
Drain & Escape Holes
Hollow geometries in SLS nylon or SLA resin require at least two escape drain ports (≥Φ3.0mm, ideally Φ5.0mm) placed on non-critical faces to evacuate un-sintered powder or liquid resin.
Clearance for Moving Joints
For print-in-place ball joints, hinges, and sliding assemblies, maintain a minimum clearance gap of 0.5mm in SLS nylon, and 0.3mm in high-precision SLA/DLP micro-wax.
Internal Fluid Channels
In DMLS metal conformal cooling inserts, internal channels should maintain a minimum diameter of 3.0mm with teardrop or self-supporting arch profiles to prevent laser powder melting collapse.
Integrated CNC Post-Machining & Surface Finishing
Bridging the gap between additive geometric freedom and subtractive mechanical precision:
Subtractive Precision for Additive Components
While raw 3D printed parts provide net shapes with ±0.10–0.15mm accuracy, critical mating datum faces, O-ring seal grooves, and bearing bores demand precision subtractive operations. We program 5-axis CNC machining to finish mounting surfaces to ±0.010mm (precision CNC drawing tolerances), tap internal threads to standard ISO 6H fit, or wire EDM precision bores to ±0.005 mm, and skim seal faces to Ra 0.8μm.
Brass Threaded Inserts & Fastener Integration
For plastic resin and nylon enclosures requiring repeated disassembly, directly tapped plastic threads easily strip. We install ultrasonic / heat-set brass threaded inserts (M2 to M8) with knurled outer profiles, delivering pull-out resistance up to 1,200 N and torque retention for rugged field testing.
Comprehensive Surface Finishes
From bead-blasting to uniform matte textures, vapor smoothing for airtight sealed nylon manifolds, to custom color painting, UV-cured clear coats, and Type II/III anodizing on metal parts via our surface finishing shop.
Realistic Production Turnaround & Export Packaging Standard
Transparent shop-floor scheduling grounded in Pearl River Delta manufacturing velocity:
| Technology & Scope | Batch Size | Shop-Floor Lead Time | Dispatch Mode |
|---|---|---|---|
| SLA White / ABS-Like Resin | 1 – 10 pcs | 4 – 6 business days | Priority Air Express (DHL/FedEx/UPS: 3–5 business days) |
| SLS Nylon PA12 (Natural / Black) | 1 – 50 pcs | 4 – 8 business days | Priority Air Express (3–5 business days) |
| DMLS Metal (As-Printed) | 1 – 5 pcs | 5 – 8 business days | Priority Air Express (3–5 business days) |
| DMLS Metal + Full CNC Machining | 1 – 10 pcs | 7 – 12 business days | Priority Air Express (3–5 business days) |
| Polyurethane Vacuum Casting | 10 – 50 pcs | 5 – 8 business days (incl. silicone mold) | Air / Sea Freight according to package weight |
1. High-Density EPE / EVA Custom Foam
Fragile resin and thin-walled parts are cushioned inside CNC/laser-cut EPE foam cavities tailored to the part’s exact geometric contours.
2. Anti-Static Moisture Barrier Pouches
Vacuum heat-sealed with industrial desiccant to prevent humidity absorption and dimensional drift in nylon and resin components.
3. Reinforced Double-Wall Outer Cartons
Heavy-duty K=K corrugated export boxes with reinforced edge protectors withstand drops, vibrations, and multi-hub transit stacking.
Order Volume & Process Transition Roadmap: From 1 Part to 10,000+
How we guide your hardware project through the optimal manufacturing process as volume scales:
| Production Stage | Quantity Range | Recommended Process | Tooling Cost | Unit Cost Profile | Key Advantage |
|---|---|---|---|---|---|
| Proof of Concept | 1 – 10 pcs | SLA Resin / SLS Nylon / FDM | $0 | Medium – High | Rapid prototyping turnaround (4–8 days), instant design iteration |
| Functional Testing | 5 – 50 pcs | SLS Nylon / DMLS Metal | $0 | Medium | True engineering mechanical properties, no mold investment |
| Pilot Batch Validation | 20 – 200 pcs | Polyurethane Vacuum Casting | $300 – $800 (Silicone) | Low – Medium | Molded-in colors, rubber overmolding, low tooling risk |
| Bridge Production | 200 – 2,000 pcs | Rapid Tooling (Aluminum Injection Molds) | $2,500 – $6,000 | Low | Production resins (ABS/PC/PP), fast cycle times (12–18 days) |
| Mass Production | 2,000 – 100,000+ pcs | Production Steel Molds (P20/H13) | $5,000+ | Lowest | Minimum unit price, guaranteed million-shot lifespan |
How It Works: 4-Step Rapid Ordering & Delivery Workflow
A streamlined digital-to-physical engineering workflow from CAD upload to overseas delivery:
Upload 3D CAD & Specs
Submit your 3D models in STEP, IGES, or STL formats alongside material requirements, quantities, and tolerance expectations. Accepts files up to 100MB.
DFM Analysis & Quote
Our application engineers inspect wall thicknesses, support requirements, and orientation, providing a clear quotation with DFM feedback within 24 hours.
Manufacturing & Inspection
Parts are sliced and built on calibrated industrial systems, post-cured, de-powdered, bead-blasted, and dimensionally verified on granite metrology tables (100% verification).
Vacuum Packaging & Dispatch
Components are sealed in protective anti-static vacuum packs, cushioned in custom-density foam cartons, and shipped worldwide via express air courier with tracking provided same day.
Cross-Industry Additive Manufacturing Applications
Engineering solutions tailored to the strict compliance and functional performance criteria of mission-critical industries:
Consumer Electronics & Smart Devices →
Ultra-thin aesthetic enclosures, snap-fit wireless earbud housings, and light pipes built with transparent resins for early cosmetic and fit verification.
Commercial & Automotive Lighting →
Optically clear acrylic-like SLA lenses polished to transparency, reflector prototypes, and heat-resistant thermal bezels for automotive headlamps.
Robotics, Tooling Jigs & Automation →
Lightweight end-of-arm tooling (EOAT), customized suction gripper brackets, and durable wear-resistant cable track components in SLS nylon.
Tooling & Conformal Cooling Mold Inserts →
DMLS maraging tool steel core inserts with internal spiral conformal cooling channels reducing cycle times by 20% to 40% in plastic injection molding.
Aerospace, UAV & Defense Hardware →
Topology-optimized titanium brackets, drone motor arms, and fuel nozzle test rigs fabricated with full material traceability and minimal weight.
Medical Devices & Diagnostic Housings →
Biocompatible surgical drill guides, ergonomic diagnostic wand housings, and fluidic manifolds for laboratory test automation equipment.
Frequently Asked Questions About Industrial 3D Printing
Process comparisons, mechanical performance, and international shipping standards for additive manufacturing.
When should I choose 3D printing over CNC machining for prototype manufacturing?
3D printing is optimal for highly complex geometries, organic topology-optimized shapes, hollow lattices, and internal channels (like conformal cooling) that cannot be reached by cutting tools. It is also more cost-effective for 1 to 5 prototype units where CNC programming and multiple fixture setups would increase unit costs. However, if your parts require tight tolerances tighter than ±0.05mm, mirror optical finishes, or specific metal alloys like 7075-T6 or Brass, precision CNC machining remains the superior choice.
Can DMLS metal 3D printed components match the mechanical strength of wrought billet metal?
Yes. After proper vacuum stress-relief heat treatment and hot isostatic pressing (HIP), DMLS printed Titanium (Ti-6Al-4V) and Stainless Steel (316L) achieve over 99.8% relative density with tensile and yield strengths that meet or exceed ASTM standards for cast and wrought materials.
How does AS Prototypes prevent international shipping damage on delicate 3D printed resin parts?
We utilize custom laser-cut high-density EPE foam compartments tailored to the geometry of delicate prototypes. Thin-walled and micro-detailed resin parts are suspended in vacuum blister packs before being packed into heavy-duty double-wall K=K export cartons with shock-absorbing corners.
Need Fast 3D Printed Prototypes or End-Use Metal Parts?
From high-detail SLA resin models and durable SLS nylon enclosures to DMLS aerospace titanium components, AS Prototypes delivers precision additive manufacturing in 4 to 8 business days (5 to 8 business days for DMLS metal printing). Upload your 3D CAD files (STEP/STL) for instant DFM analysis and competitive pricing.
