Markforged X3

The Markforged X3 is an industrial-grade composite 3D printer that brings Markforged's Continuous Fiber Fabrication (CFF) technology to a more accessible price point than the flagship X7. Designed for manufacturers, engineers, and production teams that need high-strength composite parts without the premium of the full X7 feature set, the X3 delivers the core capability that makes Markforged printers compelling — the ability to embed continuous carbon fiber, fiberglass, Kevlar, and HSHT fiberglass strands directly into Onyx (chopped carbon fiber nylon) parts during printing.

The X3 maintains the same fundamental print process as the X7: a dual-extrusion system lays down the Onyx matrix while a separate fiber extrusion head places continuous reinforcement fiber in user-defined patterns. The resulting parts significantly exceed the mechanical performance of standard FDM prints and polymer-only Onyx parts, achieving tensile strength figures in the range of 500–800 MPa for heavily carbon fiber-reinforced configurations. This puts the X3 in a unique position for manufacturers seeking to replace machined aluminum tooling, fixtures, end-of-arm tooling, and structural brackets with printed composite alternatives at reduced lead time and cost.

The primary distinction between the X3 and the X7 lies in the absence of the X7's integrated laser scanning system for in-process dimensional verification. The X3 does not perform mid-print dimensional checks, which means print quality assurance relies on operator oversight and post-print inspection rather than in-process monitoring. For many industrial applications where dimensional accuracy requirements are within the X3's demonstrated capability and the volume of prints is moderate, this trade-off is acceptable and is reflected in the lower acquisition cost.

The X3 connects to Markforged's Eiger cloud software platform for slicing, fiber layout programming, and print management. This software-hardware integration provides fleet management capabilities, part library access, and secure print dispatch when multiple X3 or mixed Markforged machines are deployed across a facility or enterprise. The Eiger interface is accessible to engineers and technicians without deep additive manufacturing expertise, lowering the skill barrier to adoption.

For mid-market industrial buyers — including contract manufacturers, automotive tier suppliers, and in-house engineering teams — the X3 provides a pragmatic entry point into production-grade continuous fiber additive manufacturing. It occupies the space between the entry-level Onyx One (no continuous fiber) and the fully featured X7, making it the default choice for buyers who need fiber reinforcement capability but have not yet justified the additional investment in laser scanning and premium X7 features.