The best place to source your rapid prototypes and custom parts

Consistent quality for prototypes and end-use parts, supported by in-house manufacturing and verified production partners.

  • 100+ metals & plastics, 50+ surface finishes
  • Instant quotes for 1-1,000 parts
  • Lead times from 3 business days
Custom machined part

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Our manufacturing capabilities

3ERP is a rapid prototyping and low-volume manufacturing company that turns designs and ideas into real parts in just a few days.

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CNC Machining

CNC Machining

CNC milling and turning for prototypes, precision components, and production parts.

Injection Molding

Injection Molding

Prototype molding and production molding for plastic parts across many applications.

Sheet Metal Fabrication

Sheet Metal Fabrication

Laser cutting, bending, stamping, punching, welding, and finishing.

Custom Extrusion

Custom Extrusion

Extrusion mold making and profiles in aluminum or plastic materials.

Vacuum Casting Services

Vacuum Casting Services

Cost-effective polyurethane casting for small batches of plastic prototypes.

Rapid Tooling Services

Rapid Tooling Services

Soft steel and aluminum tooling for prototype and bridge production runs.

3D Printing

3D Printing

Plastic and metal 3D printing for fast design validation and replacement parts.

Prototypes and Parts Made Easy

Upload your part file to check manufacturability, pricing, and standard lead time options for simple components.

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Upload CAD file

Upload CAD file

Upload part files to begin quote and manufacturability review.

Quote & Design Analysis

Quote & Design Analysis

Receive pricing and engineering feedback for your project.

Order Confirmation

Order Confirmation

Confirm specifications, lead time, finishes, and production details.

Parts Shipped

Parts Shipped

Manufactured parts are inspected, packed, and shipped to you.

Why you can trust 3ERP

ISO quality standards, advanced manufacturing technology, and in-house measuring equipment help verify materials and finished parts against specification.

Instant Quoting

Clear RFQs can be reviewed and quoted quickly by the engineering team.

Industry Experience

Rapid prototyping and rapid manufacturing experience built since 2010.

Massive Network

In-house facilities and partner capacity support flexible manufacturing demand.

30K+ Projects Delivered

Thousands of global projects have been completed for customers worldwide.

Manufactured through 3ERP

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Precision CNC Machining for Aluminum Racing Wheel Hubs

Precision CNC Machining for Aluminum Racing Wheel Hubs

Automotive racing hubs produced with tight dimensional and finish requirements.

5-Axis CNC Machining for Formula SAE

5-Axis CNC Machining for Formula SAE

Aluminum 7075-T6 front uprights for student motorsport engineering.

Xbox Controller Prototype

Xbox Controller Prototype

Functional controller prototype development for appearance and fit validation.

Precision Machined Trophies for Core77 Design Awards

Precision Machined Trophies for Core77 Design Awards

Custom machined awards with premium surface finish expectations.

Customize Shoes for Lady Gaga

Customize Shoes for Lady Gaga

Creative rapid prototyping project with unusual geometry and appearance needs.

A customer’s words mean more than ours

See what satisfied customers have said about manufacturing support, communication, and delivery.

5-axis machining support helped us push the limits of upright and wheel package designs while staying on schedule.

FSAE School of Engineering

The prototype arrived earlier than expected with strong machining quality and clear communication.

Trent L.

High-precision parts, useful design feedback, and competitive lead time made the low-volume project successful.

Sivan S.

The team was responsive throughout the project and delivered reliable precision parts ahead of schedule.

David M.

Complex CNC work, anodizing, laser marking, and communication were handled with consistent quality.

T. J.

A dependable partner for custom components, fast production, and professional project support.

Manuel M.

Put your parts into production today

All information and uploads are secure and confidential.

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Supports: STEP STP SLDPRT IPT PRT SAT IGES IGS CATPART X_T OBJ STL

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Upload drawings or CAD files and receive manufacturing feedback.

Upload CAD file

From rapid prototyping to production

CNC machining and related manufacturing services can support one-off prototypes, bridge production, and end-use production parts.

Rapid prototyping

  • Prototypes completed in days
  • Instant DFM feedback
  • Excellent quality
  • Fast delivery

Low-Volume Manufacturing

  • Lower cost bridge production
  • Production-level quality
  • Fast delivery
  • Market testing before investment

On-Demand Production

  • DFM optimization by experienced engineers
  • Dedicated project management
  • First Article Inspection
  • Consistent quality

Your ideas matter to us, So does quality

Turning your vision into reality requires a manufacturing partner that handles prototypes and low-volume production with speed, precision, and professional communication.

3ERP is a China-based rapid manufacturing company with Western roots and a North American division in Missouri, supporting demanding European and North American customers.

See our facilities for yourself.
3ERP team

Digital Manufacturing Resources

Dive into the manufacturing knowledge hub to explore articles, guides, and trends shaping the industry.

3ERP's Blog