Fused Deposition Modeling (FDM) Services | Find Qualified Manufacturers
FDM extrudes thermoplastic filament through a heated nozzle, depositing material layer by layer to build strong, functional parts for prototyping and production.
About Fused Deposition Modeling (FDM)
Fused Deposition Modeling (FDM), also known as Fused Filament Fabrication (FFF), is the most widely used 3D printing technology. A thermoplastic filament is fed into a heated nozzle that melts the material and deposits it layer by layer according to the digital model. FDM is available on machines ranging from $200 desktop printers to $500,000 industrial systems. Industrial FDM machines from Stratasys produce parts in engineering-grade materials including Nylon, ULTEM (PEI), Polycarbonate, and ABS with excellent mechanical properties. FDM is ideal for functional prototypes, tooling, jigs and fixtures, and low-volume production parts where strength and durability are needed.
Tolerances
±0.010"-±0.020" (±0.25-0.5mm) typical
Lead Time
1-5 business days
Cost Range
$5-$150 per part; most affordable 3D printing option
Compatible Materials
Advantages
- Most affordable 3D printing technology
- Wide material selection including engineering-grade
- Strong functional parts
- Large build volumes available
- Easy to use and iterate
- Soluble supports for complex assemblies
Limitations
- Visible layer lines
- Lower detail than SLA or SLS
- Anisotropic strength (weaker between layers)
- Slower for large solid parts
- Support removal can be challenging
- Limited surface finish quality
Industries Served
Aerospace
The aerospace industry manufactures aircraft, spacecraft, satellites, and related components requiring the highest standards of precision, quality, and reliability.
Automotive
The automotive industry manufactures vehicles and components, demanding high-volume production, consistent quality, and competitive pricing across a complex global supply chain.
Medical Devices
The medical device industry manufactures instruments, implants, diagnostics, and equipment that must meet stringent regulatory requirements for safety and biocompatibility.
Consumer Products
Consumer products manufacturing produces household goods, appliances, sporting equipment, and personal items through high-volume processes prioritizing aesthetics and cost efficiency.
Fused Deposition Modeling (FDM) FAQ
What is the strongest FDM material?
ULTEM 9085 (PEI) is the strongest standard FDM material with a tensile strength of 10,400 PSI, good heat resistance (153°C), and FST (flame, smoke, toxicity) compliance for aerospace. Polycarbonate and carbon-fiber-filled nylon are also very strong.
How does FDM compare to SLS for production parts?
SLS produces parts with more consistent mechanical properties (isotropic vs. FDM's anisotropic), better surface finish, and no need for support structures. FDM is less expensive per part, offers wider material selection, and can produce larger parts. Choose based on requirements.
Can FDM parts be smoothed?
Yes, ABS parts can be vapor-smoothed with acetone for a near-glossy finish. Other materials can be sanded, filled, and painted. Chemical smoothing solutions exist for various materials. The effort required is greater than for SLA or SLS parts.
What layer thickness should I use for FDM?
Standard FDM layer thickness is 0.010" (0.25mm) balancing speed and quality. Fine layers of 0.005" (0.13mm) improve surface quality but double print time. Draft layers of 0.013"-0.020" speed up prints for non-cosmetic parts.
Is FDM suitable for production parts?
Yes, industrial FDM is used for production jigs, fixtures, tooling, and end-use parts in aerospace, automotive, and manufacturing. Stratasys Fortus and F900 systems produce production-grade parts in certified materials with documented material properties.
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