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Additive manufacturing, from one prototype to a production run.

FDM and SLA 3D printing, heat set insert installation and design for additive manufacturing, all under one roof in the Bay Area. Upload a file for an instant quote, or start with the process guide below.
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What it is

FDM (Fused Deposition Modeling) is an additive manufacturing process where thermoplastic filament is melted and precisely deposited through a heated nozzle, forming parts layer by layer directly from a digital model.

What it is usually used for

Functional prototyping, mechanical parts, enclosures, brackets, jigs and fixtures, housings, and low to mid volume production parts where strength, heat resistance, or chemical resistance are required.

  • Functional prototypes
  • Enclosures and housings
  • Brackets and mounts
  • Jigs and fixtures
  • Low to mid volume production
Maximum print volume
Up to 390 x 390 x 340 mm per part
Detail levels
Fine, Standard, or Functional
Infill
Lightweight, Standard, or Solid

Available materials

  • PLA
  • ABS
  • ASA
  • PC
  • PPS-GF
  • PA-CF
  • PETG-ESD
  • PETG

If you do not see a material listed that fits your application, feel free to inquire about specific materials.

Full properties and options are on the Materials page.

Quote FDM partsUpload a file and the price comes back instantly.

What it is

SLA (Stereolithography) is an additive manufacturing process that uses a controlled light source to selectively cure liquid photopolymer resin into solid geometry, building parts layer by layer with high dimensional accuracy.

What it is usually used for

High detail prototypes, cosmetic models, snap fit testing, small enclosures, fluidic components, and parts requiring fine features, thin walls, or smooth surface finishes.

  • Cosmetic models
  • Snap fit testing
  • Small enclosures
  • Fluidic components
  • Fine features and thin walls
Maximum print volume
Up to 200 x 125 x 210 mm per part
Surface
Smooth, near injection molded finish straight off the printer
Accuracy
High dimensional accuracy for fit checks and precision features

Available materials

  • General Purpose V5
  • Rigid 10K

For applications requiring specific mechanical, thermal, or chemical properties, customers may inquire about additional Formlabs resins that are more suitable for their needs. We are happy to help evaluate material options based on your application requirements.

Full properties and options are on the Materials page.

Quote SLA partsUpload a file and the price comes back instantly.

Choosing a process

FDM or SLA?

Most parts are an easy call. Pick strength and size, choose FDM. Pick fine detail and a smooth surface, choose SLA. When it is not obvious, send the file and we will say which one fits.
ConsiderationChoose FDM When You NeedChoose SLA When You Need
Best forFunctional prototypes and production partsDetailed prototypes and presentation models
Surface finishA practical finish with visible layer linesA smooth finish with minimal layer lines
DetailStandard features and larger geometryFine features and complex small details
StrengthDurable parts for handling and regular useRigid parts requiring precision and detail
Part sizeLarger parts and assembliesSmaller, highly detailed components
CostMore economical parts and larger quantitiesPremium detail and surface quality
Common applicationsBrackets, housings, fixtures, and enclosuresModels, small components, molds, and precision-fit parts
Choose this process ifStrength, size, and cost are prioritiesDetail, accuracy, and appearance are priorities
03

Heat Set Inserts Installation

Heat set inserts provide strong, reliable metal threads in 3D printed plastic parts. Inserts are installed using controlled heat, allowing the plastic to flow around the insert for a secure bond.

Why use heat set inserts?

  • Increased convenience for assembly and disassembly
  • Reusable threads without reducing mounting strength
  • Clean, professional, and repeatable assemblies
  • Improved load capacity compared to printed threads

We install inserts during post processing to ensure proper alignment, consistency, and long term durability.

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04

Design

Our design services help turn ideas into manufacturable, reliable parts. We support projects from early concept through production ready designs, with a focus on additive manufacturing best practices.

Design capabilities

  • Design for additive manufacturing (DFAM)
  • Part optimization for strength, printability, and cost
  • Iterative prototyping and refinement
  • Design validation for production and assembly

Whether you need a concept refined, an existing part improved, or a design optimized for FDM or SLA production, we work closely with you to deliver functional and manufacturable results.

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How ordering works

From uploaded file to finished parts in six simple steps.

  1. 01Upload Your FilesUpload your 3D models to begin.
  2. 02Configure Your PartsSelect the process, material, color, detail, infill, and quantity.
  3. 03Place Your OrderReview your quote and securely submit payment.
  4. 04ProductionYour approved parts move into production.
  5. 05InspectionEach part is inspected before shipment.
  6. 06DeliveryYour finished parts are packaged and shipped.
Get an Instant QuoteLocal pickup is available at checkout for Bay Area customers.

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From prototypes to production, Additiv3 is your partner for fast and dependable manufacturing.