Functional Prototypes
Validate fit, geometry, assembly, and real-world performance quickly.
FDM-First Additive Manufacturing
Industrial 3D Printing Services
Functional plastic parts, engineered for real-world use.
Relay leads with FDM for functional prototypes, jigs and fixtures, end-use components, and low-volume production. When the application points elsewhere, we can also quote complementary additive processes instead of forcing the job into FDM.
Responsive QuotingGet a practical path forward quickly.
Engineering SupportProcess and material guidance when needed.
Production MindsetFrom one-off prototypes to repeat parts.
US-Based ServiceDirect communication and accountable support.
Our Core Process
FDM Is the First Place We Look, Not the Only Place
FDM is Relay's primary process because it is fast, flexible, and cost-effective for a wide range of functional plastic parts. Relay approaches each request from the part’s real requirements first — strength, environment, geometry, quantity, finish, and delivery — rather than forcing every project into the same material or print settings.
Common Applications
Built for the Parts Engineers Actually Need
FDM is especially useful when a part needs to be functional, iterative, affordable, or produced without dedicated tooling.
Jigs & Fixtures
Custom production aids for repeatability, positioning, handling, and inspection.
End-Use Parts
Durable components for real service when material and design are appropriate.
Batch Production
Produce a handful to a repeatable run of parts without mold or hard-tooling cost.
Larger Components
Evaluate larger parts, tooling, patterns, and assemblies that benefit from additive manufacturing.
Materials
Material Choices Matched to the Application
From easy-to-iterate prototype materials to tougher engineering polymers and reinforced filaments.
PLA / PLA+
Dimensionally stable and economical for visual models, fixtures, fit checks, and fast prototype iteration.
Prototype / GeneralPETG
Tough, versatile, and moisture resistant for functional parts, guards, brackets, and shop applications.
FunctionalABS
A durable engineering thermoplastic for functional housings, assemblies, and moderate-temperature environments.
Tough / HeatASA
ABS-like mechanical performance with improved UV and weather resistance for outdoor applications.
Outdoor / UVTPU
Flexible and impact-absorbing for seals, protective components, compliant features, feet, and grips.
FlexibleNylon / PA
Durable, wear-resistant material for demanding mechanical parts, clips, hinges, and functional components.
EngineeringPolycarbonate / PC Blends
Higher heat resistance and toughness for applications that exceed general-purpose thermoplastics.
High PerformanceCarbon-Fiber Reinforced
Stiffer reinforced polymers for fixtures, tooling, structural parts, and dimensionally demanding applications.
Stiff / StructuralGlass-Fiber Reinforced
Reinforced options that balance strength, stiffness, durability, and temperature performance.
ReinforcedOther Engineering Materials
Have a specific resin, filled polymer, or performance requirement? Include it in the RFQ and we'll evaluate the best route.
Application-SpecificWhy Relay
Engineering-Led, Not Just Print-and-Ship
Engineering-Focused
We look at how the part will be used, not only whether it can be printed.
Flexible & Responsive
A small team means direct communication and less handoff between sales and production.
From One Part to Repeat Work
Prototype, iterate, then scale the same project when it makes technical and commercial sense.
Practical Process Selection
If FDM is not the right answer, we can help identify when another manufacturing process deserves consideration.
Questions
FDM 3D Printing FAQs
What part sizes can you quote?
Send the dimensions or CAD. The best approach depends on geometry, material, machine envelope, and whether a larger component can be split or assembled. We can evaluate larger parts rather than forcing a generic size limit onto every job.
Which material is right for my application?
That depends on temperature, loading, chemical exposure, outdoor use, stiffness, impact resistance, wear, and finish requirements. If you are unsure, describe the use case and we can help narrow the material.
How quickly can you turn around a part?
Lead time depends on size, quantity, material, complexity, and current workload. Include your deadline in the RFQ and we will tell you what is realistic before you commit.
Can you help with design or printability?
Yes. Relay can flag obvious manufacturing risks and discuss practical design changes when they materially improve the part, printability, or economics of the job.
Can FDM work for low-volume production?
Often, yes. It can be a strong option when the volume does not justify tooling, designs are still evolving, or part geometry benefits from additive manufacturing.
Additional Additive Options
FDM First. Other Processes When They Make More Sense.
The Services page should match the broader Relay story: FDM is our core focus, but it is not the only route we can evaluate. If surface finish, geometry, batch economics, material, or scale point elsewhere, we can quote an alternative instead of forcing the project into the wrong process.
Polymer Powder Bed
SLS / MJF
Useful for complex nylon parts, nested batches, production quantities, and geometry that benefits from support-free powder-bed printing.
High Detail
SLA / DLP Resin
A stronger fit when fine features, smoother surfaces, visual prototypes, molds, or specialized resin properties drive the job.
Metal Additive
DMLS / Metal Printing
Available to evaluate when the requirement is truly metal and additive geometry provides an advantage over conventional fabrication.
Scale & Tooling
Large-Format / Patterns
For oversized parts, tooling, patterns, fixtures, and full-scale prototypes that exceed a typical desktop build envelope.
Have a Part Ready?
Send the CAD. Tell Us What It Needs to Do.
Upload your file, quantity, application, and any key requirements. Relay will review the job and respond with a practical path to a quote.