ISO 9001 & AS9100 Certified Additive Manufacturing Facility
Plastic 3D Printing Service
Baetro’s plastic 3D printing service delivers custom prototypes and production parts via SLA, SLS, FDM, and MJF with instant online quoting and no minimum order quantities. From our ISO 9001 and AS9100 certified facility in Qingdao, we ship precision plastic parts to engineers and product teams worldwide in as little as 3 days.
When you need functional prototypes fast, additive manufacturing eliminates tooling costs and cuts lead times from weeks to days. At Baetro, we bridge that gap with certified processes, free Design for Additive Manufacturing (DFAM) feedback on every quote, and the transparency of working directly with the manufacturer.
±0.2 mm
SLA tolerance
3–7 days
Standard lead time
Free DFAM
On every quote
MOQ 1
Prototype to production
Additive Manufacturing Fundamentals
What Is Plastic 3D Printing?
Plastic 3D printing is an additive manufacturing process that builds custom parts layer by layer from digital CAD models. Unlike subtractive machining, no material is wasted as chips, and complex geometries—internal channels, lattices, and organic shapes—can be produced without tooling.
Not every plastic part belongs on the same 3D printer. The right technology depends on your tolerance requirements, surface finish expectations, mechanical load, and budget. At Baetro, we offer four core processes—SLA, SLS, FDM, and MJF—each optimized for different prototyping and production needs.
SLA Accuracy
High-detail prototypes with the smoothest surface finish available in additive manufacturing
SLS Durability
Functional nylon parts with complex geometries and no support structures
FDM Affordability
Cost-effective concept models and large parts with quick turnaround
MJF Production Grade
Isotropic mechanical properties bridging 3D printing and injection molding
Four Technologies, One Supplier
SLA, SLS, FDM, and MJF each serve different tolerance, finish, and volume requirements from prototype to production.
Technologies
Our Plastic 3D Printing Technologies
From high-detail visual prototypes to production-grade functional parts, Baetro provides SLA, SLS, FDM, and MJF plastic 3D printing services with instant quoting and no minimums.
SLA 3D printing
SLA (Stereolithography)
SLA uses a UV laser to draw each layer into liquid photopolymer resin, producing the smoothest surface finish of any plastic 3D printing technology. Ideal for visual prototypes, master patterns, and detailed models.
- Best for: high-detail prototypes, master patterns, smooth surfaces.
- Resolution: 25–100 microns, tolerances ±0.2 mm.
- Materials: standard resins simulating ABS or PP, engineering resins for heat and impact.
SLS 3D printing
SLS (Selective Laser Sintering)
SLS fuses nylon powder with a CO2 laser, building durable functional parts without support structures. Complex geometries, internal channels, and living hinges print without sacrificial supports.
- Best for: functional prototypes, complex geometries, durable end-use parts.
- Materials: PA12 (stiff, chemical resistant) and PA11 (tough, flexible).
- Properties: nearly isotropic, wall thickness down to 0.7 mm.
FDM 3D printing
FDM (Fused Deposition Modeling)
FDM extrudes thermoplastic filament layer by layer. It is the most cost-effective technology for early-stage prototypes, large parts, and form/fit verification where surface finish is secondary.
- Best for: affordable concept models, form/fit testing, large parts.
- Materials: ABS, PLA, PETG, nylon, and ULTEM.
- Capacity: build volume up to 406 × 355 × 406 mm.
MJF 3D printing
MJF (Multi Jet Fusion)
MJF fuses nylon powder with infrared energy and detailing agents, producing parts with near-isotropic properties, fine feature resolution, and consistent density. HP’s technology bridges 3D printing and injection molding.
- Best for: low-volume production runs of 50–1,000 pieces.
- Materials: PA12 and PA11 with dark gray finish.
- Benefits: 80-micron layers, no supports, tolerances ±0.3 mm.
Procurement confidence
Why Choose Baetro for Plastic 3D Printing?
Engineers and product teams choose Baetro for reliable plastic 3D printing services with instant quoting, free DFAM feedback, certified quality, and responsive project support.
Instant Online Quoting
Upload your CAD file in STEP, STL, IGES, or native SolidWorks format. Our platform analyzes geometry, calculates material usage, and returns an exact price and lead time in under 60 seconds. No waiting for a sales email. No hidden setup fees.
Free DFAM Feedback
Our engineers review your CAD file for additive manufacturing best practices, wall thickness, orientation, support requirements, and feature resolution. We often suggest design adjustments that reduce print time, improve strength, or eliminate post-processing.
Quality Assurance & Inspection
Every plastic 3D printed part undergoes dimensional verification against your CAD model. SLS and MJF parts are checked for density and layer adhesion. SLA parts are post-cured to full mechanical specification. ISO 9001 and AS9100 certified.
No Minimum Order Quantity
Order one prototype to validate a hunch, fifty parts for a beta test, or five hundred for a pilot run. Our process, pricing logic, and quality standards remain identical regardless of quantity.
Fast Turnaround & Global Shipping
Standard lead time is 3–7 days from order confirmation to shipment. Express options are available for urgent prototypes. We ship via DHL, FedEx, and UPS worldwide with full customs documentation.
Engineering-Led Support
We do not just run your STL through a slicer. We review your design for manufacturability, select the optimal material and process for your application, and inspect every part before it ships.
Material library
Materials We Print
We stock and print the most common engineering thermoplastics and photopolymers, with guidance from our engineers to match material properties to your application.
Engineering Thermoplastics
ABS: High impact resistance, good heat tolerance, and easy post-processing. The workhorse of functional prototyping for enclosures, brackets, and moderate mechanical stress.
Nylon (PA12 / PA11): Best strength-to-weight ratio among common 3D printing plastics. PA12 is stiff and chemically resistant. PA11 is tougher and more flexible, ideal for living hinges and snap-fits.
PLA: Biodegradable thermoplastic derived from corn starch. Prints at lower temperatures, holds fine detail, and costs less than ABS or nylon. Ideal for concept models and presentation prototypes.
Polycarbonate: Exceptional impact strength and heat resistance up to 115°C. The choice for harsh environments, electrical housings, and transparent applications.
Specialty & High-Performance
TPU: Thermoplastic polyurethane prints flexible, rubber-like parts with shore hardness from 85A to 95A. Use for seals, gaskets, grips, wear pads, and any application requiring elasticity.
PEEK: High-performance polymer with continuous use temperature of 260°C, chemical resistance to most solvents, and biocompatibility for medical devices. requires specialized high-temperature equipment maintained in-house for aerospace, medical, and energy applications.
ULTEM: Handles temperatures up to 180°C for high-heat FDM applications. Ideal for aerospace and automotive prototypes requiring thermal stability.
Material
ABS
High impact resistance and heat tolerance for functional prototyping and moderate mechanical stress.
Material
Nylon
PA12 and PA11 grades offering superior strength-to-weight for functional and wear-resistant applications.
Material
Polycarbonate
Exceptional impact strength and heat resistance up to 115°C for harsh environment applications.
Material
PEEK
260°C continuous use temperature, chemical resistant, and biocompatible for medical and aerospace.
Post-processing
Surface Finish & Post-Processing by Technology
Surface finish varies by technology and orientation. Parts ship as-printed by default, but we offer post-processing options so your components arrive ready for assembly or end-use.
| Technology | Surface Finish (Ra) | Post-Processing Options | Best For |
|---|---|---|---|
| SLA | 1–3 microns | Post-curing, clear coating, sanding | Visual prototypes, master patterns, optical clarity |
| SLS | 6–10 microns | Dyeing, painting, vapor smoothing | Functional parts, enclosures, wear components |
| FDM | 12–25 microns | Sanding, vapor-smoothing, painting | Concept models, jigs, internal fixtures |
| MJF | 4–7 microns | Dyeing, painting, media blasting | Production-grade functional assemblies |
SLA produces the smoothest as-printed surfaces. FDM shows visible layer lines that can be sanded or vapor-smoothed if aesthetics matter. SLS and MJF deliver a matte, slightly granular finish that accepts dyes and paints well. Our engineers recommend post-processing during DFAM review based on your application requirements.
Engineering data
Plastic 3D Printing Tolerances & Specifications
Understanding what additive manufacturing can and cannot deliver prevents mismatched expectations. Here are our standard specifications by technology.
Standard Specifications by Technology
| Specification | SLA | SLS | FDM | MJF |
|---|---|---|---|---|
| General Tolerance | ±0.2 mm | ±0.3 mm | ±0.5 mm | ±0.3 mm |
| Minimum Feature Size | 0.5 mm | 0.8 mm | 1.0 mm | 0.5 mm |
| Minimum Wall Thickness | 0.5 mm | 0.7 mm | 1.0 mm | 0.5 mm |
| Layer Resolution | 25–100 microns | 80–120 microns | 100–300 microns | 80 microns |
| Surface Finish (Ra) | 1–3 microns | 6–10 microns | 12–25 microns | 4–7 microns |
| Build Volume (max) | 145 × 145 × 175 mm | 380 × 284 × 380 mm | 406 × 355 × 406 mm | 380 × 284 × 380 mm |
For tighter tolerances or specific surface requirements, contact our engineering team before uploading your file. Design orientation, support strategy, and post-processing all influence final part accuracy.
When to Specify Precision
- Standard tolerances: suitable for form/fit prototypes, concept models, and non-critical assemblies where ±0.3–0.5 mm is acceptable.
- Tight tolerances: achievable with SLA and MJF for assemblies requiring precise fits, though plastic 3D printing will not match CNC machining’s ±0.025 mm capability.
- Design strategy: if your assembly requires tight fits, design in clearance or specify post-print machining for critical surfaces.
- Engineering support: upload your CAD files to confirm achievable tolerances for your specific geometry and selected technology.
Quality Assurance
Quality Assurance & Inspection
Quality is built into every stage of our plastic 3D printing process, from material verification to final dimensional inspection and post-curing.
Our Quality Systems
- ISO 9001 certified quality management system
- AS9100 certified for aerospace quality standards
- Dimensional verification against your CAD model on every part
- SLA post-curing to full mechanical specification
- SLS and MJF density and layer adhesion checks
- Surface roughness validation when specified
- First article inspection for production approval
- 100% inspection or AQL sampling per customer requirements
What You Receive with Every Shipment
Every order includes a comprehensive inspection report documenting key quality data for your plastic 3D printed parts.
- Dimensional measurements against your CAD model
- Material certification and traceability
- Surface finish verification when specified
- Post-processing confirmation (curing, dyeing, etc.)
- Pass/fail status for all critical dimensions
- Dedicated project manager support and tracking
Applications
Applications for Plastic 3D Printing
Plastic additive manufacturing spans the full product development lifecycle. Here are the applications we support most often.
Application
Rapid Prototyping
3D printed prototypes validate form, fit, and function before tooling investment. Iterate faster, fail cheaper, and lock your design before committing to production.
Application
Functional Testing
SLS and MJF nylon parts withstand mechanical loads, thermal cycling, and chemical exposure. Test assemblies under real conditions and prove out mechanisms before cutting steel for injection molds.
Application
Low-Volume Production
For runs of 10–1,000 parts, 3D printing often outperforms injection molding on total cost and speed. No mold tooling, no setup penalties, and no minimum quantities.
Application
Jigs, Fixtures & Aids
FDM and SLS excel at custom workholding, assembly fixtures, and inspection gauges. Print a fixture overnight that would take a machinist three days to cut from aluminum.
Application
Design Validation
SLA and FDM produce concept models and ergonomic studies for stakeholder review. Validate aesthetics, scale, and user interaction before engineering release.
Application
Bridge to Production
Start with SLS or MJF for market testing, then transition to injection molding with the same part geometry. Baetro supports the full journey from prototype to scale.
Prototypes & Production
Plastic 3D Printing for Every Stage
From first concept to market launch, plastic 3D printing enables a seamless transition across the product development lifecycle.
Prototype & Concept Validation
Fast parts for design validation without tooling commitments. FDM and SLA deliver speed and affordability for early-stage iteration.
- No minimum order quantity—order 1 piece
- 3–5 day standard lead times for FDM and SLA
- Same material families as production processes
- Free DFAM feedback for printability issues
- Multiple material options for design comparison
Functional Testing & Low-Volume
10–1,000 parts with durable SLS and MJF nylon for real-world testing and pilot production.
- Economical for volumes up to 1,000+ parts depending on complexity
- Consistent mechanical properties across batches
- Easy design changes between runs without tooling modification
- Ideal for product launches, beta testing, and bridge production
Bridge to Scale-Up
When demand grows, we transition you to injection molding with the same part geometry, all with Baetro as your single supplier.
- Validate market demand with 3D printed parts before tooling investment
- Aluminum-tool injection molding for pre-production
- Hardened steel tooling for full production volumes
- Design continuity from prototype to production
How it works
How to Order Plastic 3D Printed Parts
Getting custom plastic parts from Baetro takes six straightforward steps from CAD file to shipped components.
Upload Your CAD File
Submit your design in STL, STEP, IGES, or native SolidWorks format. STL is preferred for 3D printing. STEP is preferred if you are also requesting a CNC machining quote for comparison.
Select Material & Technology
Choose from ABS, nylon, PLA, polycarbonate, TPU, or PEEK. Not sure which material fits? Our engineering team can recommend based on temperature, load, and chemical exposure requirements.
Receive Quote + DFAM Feedback
Your quote includes exact pricing, lead time, and free design feedback. Review our engineer’s notes, adjust your design if needed, and approve the order.
Production & In-Process Inspection
Parts are printed to approved programs, with dimensional checks at critical stages. SLA parts receive controlled post-curing. SLS and MJF parts are checked for density and layer adhesion.
Final Quality Verification
Every part receives final dimensional verification against your CAD model, with surface finish validation when specified by your requirements.
Ship with Documentation
Parts are packaged with inspection reports, material certifications, and required documents, then shipped worldwide by express carrier. Track your order in real time.
Cost considerations
Plastic 3D Printing Cost Factors
Understanding what drives plastic 3D printing costs helps you make informed design, material, and technology decisions.
- Technology: FDM is most affordable for large prototypes. SLA carries a mid-range cost for detail. MJF and high-performance materials carry premium pricing.
- Material: ABS and PLA are economical. Nylon is mid-range. PEEK, ULTEM, and engineering resins are premium due to specialized equipment requirements.
- Part Volume & Geometry: Larger parts use more material. Complex geometries with internal channels or lattices increase print time and support material.
- Post-Processing: Sanding, dyeing, vapor-smoothing, and clear coating add cost. As-printed finishes are the most economical option.
- Order Quantity: Low volumes have higher per-part cost due to setup. Higher volumes reduce per-part cost, though 3D printing excels at 10–1,000 piece runs.
- Lead Time: Standard 3–7 day lead times are included. Expedited delivery and rush processing increase cost for urgent prototypes.
FAQ
Frequently Asked Questions
Answers to common questions about plastic 3D printing technologies, materials, tolerances, costs, lead times, and quality control.
What plastics can be 3D printed?
The most common engineering plastics for 3D printing are ABS, nylon (PA12, PA11), PLA, polycarbonate, TPU, and PEEK. SLA uses photopolymer resins that simulate ABS, polypropylene, or engineering-grade properties. SLS and MJF primarily use nylon powders. FDM extrudes thermoplastic filament. Material choice depends on mechanical load, temperature, chemical exposure, and surface finish requirements.
How much does plastic 3D printing cost?
Plastic 3D printing typically costs $5–$50 per part for small prototypes and $20–$200 per part for larger or more complex geometries. Cost drivers include part volume, technology selection, material, and post-processing. FDM is the most affordable option. MJF and high-performance materials like PEEK carry premium pricing. Upload your CAD file for an exact quote in under 60 seconds.
What are the tolerances for plastic 3D printed parts?
Standard tolerances are ±0.2 mm for SLA, ±0.3 mm for SLS and MJF, and ±0.5 mm for FDM. Tighter tolerances are achievable with optimized orientation and post-machining, but plastic 3D printing will not match the ±0.025 mm capability of CNC machining. If your assembly requires tight fits, design in clearance or specify post-print machining for critical surfaces.
How long does plastic 3D printing take?
Standard lead time from order to shipment is 3–7 days. FDM and SLA parts often ship in 3–5 days. SLS and MJF require longer build and cooling cycles, typically 4–6 days. Rush processing is available for urgent prototypes. Shipping time depends on your location and selected courier service.
Is plastic 3D printing good for functional parts?
Yes, depending on the technology and material. SLS nylon and MJF parts are genuinely functional, with mechanical properties suitable for load-bearing applications, snap-fits, and wear components. SLA resins work well for static structural parts but are generally more brittle. FDM ABS and nylon can handle moderate loads but exhibit anisotropic strength. For mission-critical parts, our engineers recommend orientation and infill strategies to maximize strength.
Can I 3D print transparent plastic parts?
Yes. SLA clear resins produce the most transparent 3D printed parts, achieving optical clarity similar to molded polycarbonate after post-processing. FDM transparent filaments exist but produce cloudy results due to layer lines. For fully transparent parts, SLA is the recommended technology.
When should I choose plastic 3D printing over CNC machining?
Choose plastic 3D printing when you need 1–10 parts quickly with no tooling cost, when geometry includes internal channels or complex undercuts, or when you are iterating designs weekly. Choose CNC machining when tolerances tighter than ±0.1 mm are required, when the part must match production material properties exactly, or when surface finish Ra 1.6 or better is needed.
When should I choose plastic 3D printing over injection molding?
Choose plastic 3D printing when your volume is under 1,000 parts, design changes are still likely, or tooling investment is not yet justified. Choose injection molding when volume exceeds 5,000 parts annually, per-part cost optimization outweighs tooling investment, or regulatory requirements demand identical lot-to-lot properties. Many customers start with SLS or MJF, then transition to injection molding with Baetro as the single supplier.
Quote-ready manufacturing
Get Started with Plastic 3D Printing
Plastic 3D printing is the fastest path from CAD file to physical part, but only when your supplier pairs the right technology with genuine engineering oversight. At Baetro, we do not just run your STL through a slicer and hope for the best.
We review your design for additive manufacturing best practices, select the optimal material and process for your application, and inspect every part before it ships. From our ISO-certified facility in Qingdao, we deliver custom plastic 3D printing to product engineers, procurement managers, and startup founders who need speed without sacrificing quality.
Parts ship in 3–7 days. No minimum order quantity. ISO 9001 & AS9100 certified.
Not ready to upload a file? Contact our engineers to discuss your project, review material options, or get guidance on technology selection.