Fused Deposition Modeling

FDM

Thermoplastic filament, extruded layer by layer. Fastest turnaround, lowest cost per part, widest material range. The default for jigs, fixtures, and functional prototypes.

Fused Deposition Modeling (FDM) builds parts by melting thermoplastic filament layer by layer. Most cost-effective technology in our catalog.

When to choose FDM

Cost is primary driver

Engineering thermoplastics needed

Functional parts over cosmetic

Large build volume needed

Fast turnaround critical

Strengths

  • + Lowest cost per part
  • + 5 engineering materials
  • + Largest build volume
  • + Fastest turnaround
  • + Tough thermoplastics

Limitations

  • Visible layer lines
  • Lower accuracy than SLA
  • Anisotropic strength
  • Support marks
  • Not ideal for fine detail
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Technology specs

Layer height0.1-0.3mm
Tolerances±0.5mm
Min wall thickness1.2mm
Max build size360 x 360 x 360mm
Lead timeFrom 1 business day

Quick compare

Support scarringHigh
Level of detailLow
AccuracyMedium
Price$
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Design guidelines

Guidelines

Recommended parameters when designing parts for FDM.

Wall thickness
1.2mmMinimum recommended wall thickness
Support & overhangs
45°
50°Support requirements and max overhang angle
Holes
Ø 2.0 mmMinimum hole diameter
Tolerance
±
±0.5mmExpected dimensional accuracy
Minimum features
1.8 mmSmallest printable feature
Clearance
0.2 mmRecommended clearance between parts

View full design guidelines →

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Post-processing

Standard finishing included with every FDM order. Optional services available on request.

Included (standard)

Support removal— Breakaway supports manually removed and contact points cleaned. Dissolvable supports soaked in chemical bath.
Washing— Parts washed to remove residue, dust, or loose filament strands.
Surface cleanup— Support witness marks trimmed and sanded flush. Sharp edges deburred.

Optional (quoted separately)

+
Painting / priming— Filler primer, spot putty, and paint. Custom colors matched to Pantone or RAL.
+
Threaded inserts— Heat-set brass inserts for durable, repeatable threaded connections.
+
Assembly— Multi-piece builds bonded with structural adhesive. Seams filled and sanded.

View full post-processing details →

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Shipping & delivery

Every FDM order ships from our production facility in Brooklyn, NY. Lead time starts at From 1 business day. Enter your zip code to see exactly when parts will arrive at your door.

Local Pickup

Same day, free. Brooklyn facility, Mon\u2013Fri 10am\u20135:30pm ET.

Courier

Same day across all five boroughs and northern NJ.

Nationwide Shipping

UPS Ground, 2nd Day Air, and Next Day Air. Tracked and insured.

All shipping options →
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Applications

FDM is available on our and and and and services. Typical jobs:

Hardware Development

Iterate on enclosures, brackets, and assemblies.

Design Verification

Test form, fit, function before committing.

Investor Samples

Presentation-quality parts for demo day.

Bridge Manufacturing

Keep shipping while your injection mold is being cut.

Low Volume Manufacturing

Production runs below the injection molding crossover.

Production Parts

End-use nylon parts without mold tooling.

Replacement Parts

On-demand spares for legacy products.

Hardware Development

Iterate on enclosures, brackets, and assemblies without tooling.

Jigs and Fixtures

Assembly line tooling printed and delivered in days.

Functional Prototypes

Production-grade thermoplastics, working parts.

Large Format Prototypes

Oversized parts in a single print.

Hardware Development

Iterate on enclosures, brackets, and assemblies without waiting for tooling.

Product Design Validation

Test form, fit, and function with production-grade materials before committing.

Investor Samples

Presentation-quality parts that look and feel like the final product.

Pre-Production Testing

Validate tolerances, material behavior, and assembly flow at low volume.

Jigs and Fixtures

Custom tooling for your production line — printed and delivered in days.

End-Use Production Parts

Parts that go directly into products your customers buy and use.

Supply Chain Supplementation

Fill gaps in your supply chain without retooling or long lead times.

Bridge Manufacturing

Keep shipping while injection mold tooling is still being cut.

Low-Volume Serial Production

Hundreds to thousands of identical parts — no MOQ from a mold shop.

Replacement Parts Programs

On-demand spares for legacy products without warehousing inventory.

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Compare FDM with others

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Ready to start production?

Upload your CAD file and get a quote in minutes — or talk to our engineers about your next production run.