Rapid Manufacturing: Accelerate Production for Custom and Low‑Volume Parts

For emerging or expanding businesses, getting products to market faster is essential. Rapid manufacturing offers a versatile, cost‑effective way to accelerate production of custom and low‑volume parts.

This guide explains the key rapid manufacturing methods, their benefits, and how to select the right approach for your business.

What is Rapid Manufacturing?

Rapid manufacturing encompasses a range of processes that enable quick, flexible production of end‑use parts for customized products, low‑volume serial runs, or bridge production.

Traditional methods such as injection molding and casting rely on expensive, time‑consuming tooling. In contrast, rapid manufacturing eliminates or reduces tooling costs and significantly shortens lead times.

Common techniques include additive manufacturing, CNC machining, and rapid tooling. Most of these methods integrate digital design and software automation to further speed the workflow.

Rapid Manufacturing vs. Rapid Prototyping

Rapid prototyping uses 3D CAD data to quickly produce scale models or assemblies, allowing designers to test and iterate designs in record time.

While traditionally linked to additive processes, the same technologies now produce finished parts. Advancements in materials and cost reductions have turned rapid prototyping into a viable manufacturing solution.

Rapid Manufacturing vs. Additive Manufacturing

Additive manufacturing, or 3D printing, builds parts layer by layer from CAD models without the need for tooling. It excels at complex geometries that would be costly or impossible to produce with conventional methods.

These additive techniques form the backbone of rapid manufacturing, often creating rapid tooling that cuts the lead time and cost of traditional processes.

Rapid Manufacturing Methods

Rapid manufacturing draws on a mix of tools and processes: additive manufacturing, subtractive tools such as CNC machining, and rapid tooling for conventional methods.

Additive Manufacturing

Fused Deposition Modeling (FDM)

FDM, also known as fused filament fabrication, constructs parts by melting and extruding thermoplastic filament layer by layer.

It is the most common 3D printing method at the consumer level and is also widely adopted by industrial users.

FDM offers the lowest resolution of plastic 3D printing, making it best suited for simple, machined‑like parts. Surface quality can be enhanced through post‑processing or by using industrial printers with soluble supports.

Standard thermoplastics such as ABS and PLA are common, while engineering grades and composites are available on industrial systems.

Stereolithography (SLA)

SLA uses a laser to cure liquid resin, producing parts with exceptional resolution, detail, and surface finish.

Its material library now includes a wide range of resins that mimic standard, engineering, and industrial plastics, making it ideal for molds, patterns, and functional end‑use parts.

SLA is widely used in dentistry, jewelry, healthcare, model making, and consumer products. It can produce items such as custom earphones, medical swabs, and shoe soles.

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See and feel Formlabs SLA quality firsthand. We’ll ship a free sample part to your office.

Selective Laser Sintering (SLS)

SLS fuses polymer powder with a high‑powered laser, creating parts that require no support structures. This makes it perfect for complex geometries, including undercuts and thin walls.

Resulting parts match the strength of injection‑molded components, making SLS suitable for small‑batch production, mass‑customized consumer goods, and durable tooling.

Industries use SLS for replacement parts, jigs, fixtures, and patient‑specific medical devices such as prosthetics and surgical models.

Request a Free Sample Part

See and feel Formlabs SLS quality firsthand. We’ll ship a free sample part to your office.

CNC Tools

CNC machining is a subtractive process that shapes material by removing it through cutting, drilling, or grinding. It works with plastics, metals, wood, composites, and more.

Laser and water‑jet cutters provide high‑precision flat part production, while multi‑axis CNC machines handle complex 3D shapes.

Compared to additive methods, CNC requires more setup and tooling, making it cost‑effective only for small production runs or parts that cannot be produced additively.

Rapid Tooling

Hybrid manufacturing blends rapid techniques with traditional processes like injection molding, thermoforming, or casting, enhancing flexibility, agility, and cost‑efficiency.

3D‑printed molds for vacuum forming, injection molding, and CNC tube bending enable rapid validation, reduced tooling costs, and fast iteration.

• Tooling

  Create robust, factory‑ready tooling that solves DFM challenges and boosts flexibility across injection molding, CNC, and more.

• Jigs & Fixtures

  Reduce costs and increase agility by producing jigs and fixtures in‑house with no minimum order, no toolpath programming, and a broad material selection.

Low‑Volume Rapid Injection Molding with 3D Printed Molds

Download our white paper for guidelines on using 3D‑printed molds to lower costs and lead times, featuring case studies from Braskem, Holimaker, and Novus Applications.

Designing Jigs & Fixtures with 3D Printing

Download the white paper that demonstrates how 3D printing cuts the cost and lead time of producing jigs and fixtures.

Choosing the Right Rapid Manufacturing Process

As technology advances, the optimal point to switch between methods shifts. Rapid manufacturing is increasingly viable for low‑to‑mid‑volume applications as equipment and materials improve and unit costs drop.

Key factors to evaluate:

• Form

  Do your parts have complex internal features or tight tolerances? Geometry may limit options or require DFM optimization.

• Volume & Cost

  High‑upfront tooling can be economical at large volumes, while low‑volume methods keep startup costs low but may have higher per‑unit costs.

• Lead Time

  Rapid tooling can deliver the first parts in 24 hours, whereas traditional tooling may take months.

• Material

  Match the mechanical, thermal, and aesthetic requirements of your application against the material options available.

Outsourcing vs. In‑House Production

Companies can outsource rapid manufacturing to service bureaus—such as 3D Hubs, Protolabs, or Fictiv—or build in‑house capabilities.

Service bureaus offer multiple technologies and rapid turnaround, but cost and lead time can rise when parts travel across borders.

Investing in an in‑house 3D printer can break even within months, especially for small‑batch production, and gives full control over the process.

Getting Started with Rapid Manufacturing

While traditional manufacturing remains essential for mass production, rapid manufacturing is rapidly becoming the go‑to solution for small‑run production, thanks to technological progress and hybrid approaches.

Explore how Formlabs’ affordable, high‑performance 3D printers empower businesses to launch in‑house rapid manufacturing.