3Dnatives Lab: Review of the Snapmaker U1 3D Printer

Long known for its versatile digital fabrication machines—which combine 3D printing, CNC machining, and laser engraving in a single device—Snapmaker has been undergoing a significant strategic shift in recent years. Following the success of its Snapmaker 2.0 and Artisan models, the Chinese brand is making a deliberate shift toward dedicated 3D printers, gradually moving away from the “all-in-one” positioning that had built its reputation among makers. The U1 is the most accomplished expression of this transition: a machine focused exclusively on multi-material 3D printing, equipped with a four-tool automatic print head switching system.

Funded via Kickstarter before reaching the mainstream market, the U1 is entering a competitive segment dominated by Bambu Lab and its AMS system, Prusa Research with the MMU3, and Creality with its CFS. Its unique selling point? A mechanical tool changer that, unlike purge-and-load systems, promises to drastically reduce filament waste. We put the machine through its paces at the 3Dnatives Lab to determine whether this promise holds up in daily use.

1. Unboxing and Technical Specifications

The U1 features a modern, minimalist design in line with current trends. The mechanical and electronic components are concealed behind injection-molded plastic panels, giving the machine a clean, industrial look. A glass door on the front and a transparent plastic rear panel allow for full visibility of the print chamber, from front to back. Visibility from the rear is, of course, limited by the machine’s positioning: if it is placed against a wall—which remains the most natural setup in most workspaces—it is impossible to see from the back.