Custom 3D Printing: Your Design, Our Technology
Upload your CAD file and get an instant quote for custom 3D printing. No minimum order. FDM, SLA, SLS, and metal printing across 20+ materials. Automated DFM feedback, fast 2 – 5 day turnaround, and one-stop post-processing included.
Custom 3D Printing: Your Design, Our Technology
Custom 3D printing at FIRMFG turns your digital design into a physical part with no minimum order, no setup fees, and no compromise on quality. Upload your CAD file and receive an instant online quote with pricing, lead time, and DFM feedback within minutes. Choose from four printing technologies — FDM, SLA, SLS, and metal DMLS — spanning 20+ materials from everyday PLA to aerospace-grade titanium. Whether you need a single bespoke prototype or a small batch of functional end-use parts, our on-demand 3D printing service delivers in 2 – 5 business days.
What sets custom 3D printing apart is freedom — freedom from tooling, freedom from minimum order quantities, and freedom from the design constraints of subtractive manufacturing. Complex internal channels, organic geometry, lattice structures, and topology-optimized parts that would be impossible or prohibitively expensive to machine are routine for 3D printing. This makes custom 3D printed parts ideal for prototyping, spare parts, low-volume production, jigs and fixtures, and bespoke components where traditional manufacturing does not fit the schedule or budget.
Our process is built for speed and transparency. The instant quoting platform shows exactly how material, technology, quantity, and post-processing affect price — so you can optimize cost in real time. Every order is reviewed by an engineer who provides DFM feedback and recommends the right technology and material for your application. From bespoke 3D printing for a single display model to low-volume production of functional nylon parts, FIRMFG handles it all under one roof with ISO 9001 certified quality. Skip ahead and get an instant quote now, or read on for the full capability guide.
Custom 3D Printing Quick Specifications
Key specifications for our custom 3D printing service. These apply to all technologies, materials, and order sizes — from single prototypes to batch production.
| Specification | Value |
|---|---|
| Minimum Order Quantity | No MOQ — single parts accepted |
| Available Technologies | FDM, SLA, SLS, MJF, Metal |
| Standard Lead Time | 2 – 5 business days |
| Express Lead Time | 24 – 48 hours (select materials) |
| Material Library | 20+ materials across plastics and metals |
| Maximum Part Size (FDM) | 300 × 300 × 400 mm |
| Maximum Part Size (SLA) | 200 × 200 × 200 mm |
| Dimensional Accuracy (SLA) | ±0.1 mm or ±0.025 mm per 25 mm |
| Instant Online Quote | Available 24/7 |
| DFM Feedback | Automated within minutes of upload |
No MOQ means we accept single-part orders. Lead times are from file approval to shipping and exclude transit time. Express and Rush service available for select materials and geometries.
Custom 3D Printing Capabilities
Four printing technologies, 20+ materials, and one-stop post-processing. We match the right technology to your part — not the other way around.
FDM (Fused Deposition Modeling)
Production-grade thermoplastics including PLA, ABS, Nylon, PETG, and TPU. Cost-effective for functional prototypes and end-use parts. Build volume up to 300 × 300 × 400 mm with layer resolutions from 0.1 mm.
Strong, functional parts · Lowest cost
SLA (Stereolithography)
High-resolution resin printing for smooth surfaces and fine detail. Standard, tough, flexible, castable, and dental resins. Accuracy down to ±0.025 mm per 25 mm.
Smoothest surface · Finest detail
SLS (Selective Laser Sintering)
Nylon PA12, PA11, and glass-filled nylon parts with no support structures. Ideal for complex geometries and production-grade mechanical parts. Fully isotropic strength.
No supports · Production strength
Metal 3D Printing (DMLS)
Direct Metal Laser Sintering in stainless steel 316L, titanium Ti-6Al-4V, aluminum AlSi10Mg, and Inconel. For custom metal parts, brackets, and functional prototypes.
Real metal parts · High strength
Need help choosing? Our quoting platform recommends the optimal technology based on your geometry and requirements. Compare all 3D printing technologies.
How to Order Custom 3D Printed Parts
Four steps from CAD upload to shipped part. Upload CAD, get an instant quote, review DFM feedback, and we print and ship — typically in 2 – 5 days.
Upload CAD
Upload your STL, STEP, OBJ, or 3MF files to our instant quoting platform. Multiple files and batch uploads supported. The system analyzes your geometry automatically — no waiting for a human response. Files are securely stored and never shared.
STL / STEP / OBJ / 3MF accepted · Instant analysis
Instant Quote
Get pricing, lead time, and material options within minutes. The quote reflects part volume, material, technology, post-processing, and quantity. Adjust parameters live to compare costs. No obligation, no email gate — transparent pricing 24/7.
Pricing in minutes · No obligation · 24/7
DFM Review
Our automated Design for Manufacturing system flags wall thickness, overhang, support, and orientation issues with suggested fixes. An engineer reviews every order before production. We help you choose the right technology and material for your application.
Automated + engineer review · Technology & material guidance
Print & Ship
After approval, your part is scheduled and printed. Post-processing (support removal, sanding, dyeing, painting) is applied per your spec. Quality inspection verifies critical dimensions. Shipping via express courier with tracking, both domestic and international.
Priority production · Post-processing · Express shipping
No MOQ, no setup fee. Single-part orders welcome. The entire process — upload, quote, DFM review, print, and ship — can be completed in as little as 24 hours with Rush service for qualifying geometries.
Design Support & DFM Feedback
We do not just print your file — we help you make it better. Automated DFM analysis, technology selection, material matching, and cost optimization before you pay.
DFM Feedback
Our automated DFM analysis checks wall thickness (minimum 0.8 mm for FDM, 0.6 mm for SLA), overhangs greater than 45 degrees requiring supports, minimum hole sizes, bridge distances, and small features prone to breakage. Every issue is flagged with a recommended fix before you pay — so you never receive a part that fails due to a design oversight.
Technology Selection
Not sure whether FDM, SLA, SLS, or metal printing is right for your part? Our quoting platform recommends the optimal technology based on your geometry, tolerance, surface finish, and end-use requirements. Need a smooth visual model? SLA. Need functional strength? SLS or FDM. Need real metal? DMLS. We match technology to intent.
Material Matching
With 20+ materials available, selecting the right one can be overwhelming. Our engineers recommend materials based on mechanical properties (tensile strength, impact resistance, flexibility), environmental factors (heat, moisture, UV), and regulatory requirements (biocompatibility, flame retardance). Tell us what your part does — we tell you what to print it in.
Orientation Optimization
Print orientation affects accuracy, surface finish, strength, and cost. Our DFM system recommends the optimal orientation for your geometry — balancing aesthetic surfaces (placed facing up), critical dimensions (oriented along the XY plane for accuracy), and material usage (minimizing supports). The right orientation can cut cost by 30% and improve accuracy by 50%.
Tolerance Analysis
Different technologies deliver different accuracies: SLA achieves ±0.025 mm per 25 mm, FDM achieves ±0.3 mm, and SLS achieves ±0.3 mm. We analyze your critical dimensions and recommend the technology that meets your tolerance requirements — or suggest design changes to relax tolerances where possible to reduce cost.
Cost Optimization
Small design changes can dramatically reduce cost. Hollowing thick sections saves material and print time. Splitting large parts into smaller pieces avoids oversized machines. Choosing FDM over SLA for non-cosmetic parts cuts cost by 40%. Our DFM report highlights cost-saving opportunities without compromising function.
Custom 3D Printing Materials
20+ materials across FDM, SLA, SLS, and metal printing. From everyday PLA to aerospace-grade titanium — selected to match your part's function and environment.
PLA (FDM)
Easy-to-print bioplastic. Rigid, low warping, available in many colors. Best for visual models and non-functional prototypes. Low cost and fast printing.
Typical Use
Visual models · Display parts · Concept prototypes
ABS (FDM)
Impact-resistant engineering thermoplastic. Higher heat resistance than PLA (105°C glass transition). Machinable, paintable, and acetone-smoothable. Requires heated chamber.
Typical Use
Functional prototypes · Housings · Enclosures
Nylon PA12 (SLS)
Production-grade nylon with excellent mechanical properties. High strength, toughness, and chemical resistance. No support structures needed. Sterilizable for medical use.
Typical Use
Functional end-use parts · Snap-fits · Living hinges
Nylon PA12 GF (SLS)
Glass-filled nylon PA12 with 40% higher stiffness and improved thermal stability. Dimensional stability under load. Ideal for structural and load-bearing applications.
Typical Use
Structural brackets · Jigs · Load-bearing parts
Standard Resin (SLA)
High-resolution photopolymer with smooth surface finish. Best for visual prototypes requiring fine detail and accuracy. Available in grey, white, and clear.
Typical Use
Visual prototypes · Master patterns · Detailed models
Tough Resin (SLA)
Impact-resistant resin combining SLA surface quality with ABS-like mechanical properties. For functional prototypes that need both detail and strength.
Typical Use
Functional prototypes · Snap-fits · Assemblies
TPU (FDM)
Flexible thermoplastic polyurethane with Shore 95A hardness. Elastic, abrasion-resistant, and impact-absorbing. For gaskets, seals, and flexible components.
Typical Use
Gaskets · Seals · Flexible parts · Overmolds
Stainless Steel 316L (Metal)
Corrosion-resistant austenitic stainless steel. High strength and toughness. Passivated per ASTM A967 for medical and food-contact applications.
Typical Use
Custom metal parts · Brackets · Functional hardware
Titanium Ti-6Al-4V (Metal)
Aerospace-grade titanium alloy. Highest strength-to-weight ratio of any metal 3D printing material. Biocompatible per ISO 10993 for implants.
Typical Use
Aerospace parts · Lightweight brackets · Medical implants
Aluminum AlSi10Mg (Metal)
Cast aluminum alloy optimized for additive manufacturing. Good strength, low weight, excellent thermal conductivity. Heat-treatable for higher properties.
Typical Use
Heat sinks · Lightweight housings · Functional parts
Full material data sheets available on request. View complete 3D printing material guide.
Why Choose FIRMFG for Custom 3D Printing
Fast response, expert DFM support, small-batch friendly, and transparent pricing. Built for engineers, designers, and makers who need real parts, fast.
Fast Response Speed
Instant online quotes available 24/7 — no waiting days for an email reply. Upload your CAD and get pricing, lead time, and DFM feedback within minutes. Our automated system means you can iterate on designs and budgets in real time, not across multiple business days.
Expert DFM Support
Every order is reviewed by an engineer, not just an algorithm. We flag design issues, recommend technology and material, and suggest cost-saving changes — before you pay. Our DFM feedback helps you get the part right the first time, avoiding costly reprints and delays.
Small-Batch Friendly
No minimum order quantity. Whether you need one prototype or one hundred production parts, we accept your order. Single-part orders get the same quality and DFM attention as batch runs. This makes custom 3D printing ideal for prototyping, spare parts, and low-volume production alike.
Transparent Pricing
Every quote itemizes material cost, machine time, post-processing, and shipping. No hidden fees, no surprise upcharges. Adjust quantity, material, or technology live in the quoting platform and see exactly how each parameter affects price. What you see is what you pay.
One-Stop Post-Processing
Beyond printing, we offer support removal, sanding, polishing, dyeing, painting, vapor smoothing, and assembly. Get fully finished parts delivered ready to use — no need to coordinate multiple vendors. Metal parts include heat treatment, machining, and surface finishing.
Quality Inspection
Every part is inspected before shipping. Critical dimensions are verified against your CAD using CMM and optical measurement. First Article Inspection (FAI) reports available on request. ISO 9001 certified quality system ensures consistent results across orders.
Custom 3D Printing Cost Factors
Transparent pricing by volume, weight, or machine time. No setup fees, no hidden charges. Adjust parameters live in the quoting platform to optimize cost.
| Cost Factor | Value |
|---|---|
| Pricing Basis | Volume (cm³), weight (g), or machine time |
| PLA (FDM) | $0.15 – $0.30 / g |
| ABS (FDM) | $0.20 – $0.40 / g |
| Nylon PA12 (SLS) | $0.50 – $0.80 / g |
| Standard Resin (SLA) | $0.30 – $0.50 / g |
| Tough Resin (SLA) | $0.40 – $0.60 / g |
| Stainless Steel 316L (Metal) | $5.00 – $8.00 / g |
| Titanium Ti-6Al-4V (Metal) | $8.00 – $15.00 / g |
| Aluminum AlSi10Mg (Metal) | $3.00 – $6.00 / g |
| Post-Processing | Quoted per operation (sanding, dyeing, painting) |
| Setup Fee | None — no setup cost for custom parts |
| Shipping | Calculated at checkout (express included) |
Pricing is transparent and itemized. The instant quote shows material cost, machine time, post-processing, and shipping separately — so you can see exactly what you are paying for and optimize accordingly. Quantity discounts apply automatically for batch orders.
Custom 3D Printing FAQ
Answers to the most common questions about custom 3D printing at FIRMFG — MOQ, lead time, materials, accuracy, quoting, and quality.
QIs there a minimum order quantity for custom 3D printing?
No. FIRMFG has no minimum order quantity (MOQ) for custom 3D printing. We accept single-part orders and treat them with the same quality, DFM review, and engineering attention as production batches. This makes custom 3D printing ideal for one-off prototypes, custom spare parts, and low-volume production where traditional manufacturing minimums would be prohibitive. Whether you need one part or one thousand, our instant online quoting platform prices your order transparently with no setup fees and no minimums.
QWhat is the lead time for custom 3D printed parts?
Standard lead time for custom 3D printing is 2 – 5 business days from file approval to shipping, depending on technology, material, and post-processing. FDM and SLA parts in standard materials typically ship in 2 – 3 days. SLS nylon and metal parts take 3 – 5 days due to longer build and post-processing cycles. Express service (48 hours) and Rush service (24 hours) are available for PLA, ABS, and standard SLA resin. Post-processing like dyeing, painting, or vapor smoothing adds 1 – 2 days. Shipping is additional and calculated at checkout.
QWhat materials can I use for custom 3D printing?
FIRMFG offers 20+ materials across four technologies. FDM: PLA, ABS, PETG, Nylon, TPU (flexible). SLA: standard resin, tough resin, flexible resin, castable resin, high-temp resin, dental resin. SLS: Nylon PA12, glass-filled PA12, PA11, carbon-fiber-filled nylon. Metal DMLS: stainless steel 316L, titanium Ti-6Al-4V, aluminum AlSi10Mg, Inconel 718. Each material has distinct mechanical, thermal, and aesthetic properties — our engineers can recommend the optimal material based on your part function, environment, and regulatory requirements.
QWhat accuracy can I expect from custom 3D printing?
Accuracy varies by technology. SLA achieves the highest accuracy at ±0.025 mm per 25 mm (or ±0.1 mm, whichever is greater) with layer heights down to 0.025 mm. FDM achieves ±0.3 mm or ±0.2% (whichever is greater) with layer heights from 0.1 mm. SLS achieves ±0.3 mm with layer heights of 0.12 mm. Metal DMLS achieves ±0.1 mm with layer heights of 0.04 mm. For tighter tolerances on critical features, we can post-machine 3D printed parts to ±0.01 mm using CNC machining. Specify your critical dimensions and we recommend the technology that meets them.
QHow do I get a quote for custom 3D printing?
Upload your STL, STEP, OBJ, or 3MF files to our instant online quoting platform. The system analyzes your geometry and returns pricing, lead time, material options, and DFM feedback within minutes — no waiting for an email, no obligation. You can adjust technology, material, quantity, and finish live to compare costs. Quotes are available 24/7. If you prefer, you can also email files directly to our engineering team for a manual quote with more complex DFM feedback, typically returned within 24 hours.
QHow do you ensure quality for custom 3D printed parts?
Every custom part is produced under our ISO 9001 certified quality system. Before production, your file undergoes automated DFM analysis and engineer review. During production, machine parameters are validated and in-process inspection monitors build quality. After production, critical dimensions are verified against your CAD using CMM and optical measurement. First Article Inspection (FAI) reports are available on request. If a part does not meet specified tolerances, we reprint it at no additional cost. Quality is built into every step — not inspected in at the end.
Applications of Custom 3D Printing
Custom 3D printing serves a wide range of applications where traditional manufacturing is too slow, too expensive, or too rigid for the requirement.
Custom Parts
One-off bespoke components
Prototypes
Design iteration and validation
Spare Parts
Obsolete or unavailable replacements
Low-Volume Production
10 – 500 end-use parts
Functional Jigs
Manufacturing tooling and fixtures
Display Models
Visual and presentation models
Related 3D Printing Services
Explore our other 3D printing capabilities and service options.
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Complete 3D printing services including SLA, SLS, FDM, MJF, and metal printing for rapid prototyping and production. Overview of all technologies and materials.
Learn MoreRapid 3D Printing
Rapid 3D printing with 24-48 hour turnaround. Express FDM and SLA printing for urgent prototypes with priority production and express shipping.
Learn MoreLow-Volume 3D Printing
Low-volume 3D printing for 10 – 500 end-use parts. Batch production with consistent quality, quantity discounts, and no tooling investment.
Learn MoreReady to Print Your Custom Part?
Upload your CAD file now and get an instant quote with transparent pricing. No MOQ, no setup fee, automated DFM feedback, and 2 – 5 day turnaround. From a single bespoke prototype to small-batch production — your design, our technology.