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Texas Jury Awards Stratasys $27.6M in Patent Infringement Case Against Bambu Lab

Verdict covers X1, P1, and A1 series 3D printers; Bambu Lab says it will appeal

By LineZotpaper
Published
Read Time2 min
A federal jury in Texas has found Bambu Lab liable for infringing Stratasys patents on prime tower and bed-leveling technology, awarding $27.6 million in damages. The verdict covers Bambu Lab's first-generation X1, P1, and A1 series of 3D printers, though no injunctions have been issued against the machines.

Bambu Lab has stated it disagrees with the verdict and intends to seek post-trial review and appeal. The company told Tom's Hardware: "We appreciate the time and effort of the jury in considering this matter. While we respect the judicial process, we disagree with the verdict reached in this case."

The patents in dispute cover prime tower methods for purging single-nozzle filament and strain-gauge-based bed leveling. Both techniques are used in Bambu Lab's first-generation machines, including the retired X1, the P1S (nominally replaced by the P2S in October 2025), and the still-active A1 and A1 Mini.

Notably, the ruling applies only in the United States. In Europe, the Unified Patent Court's Hague Local Division dismissed a similar Stratasys action against Bambu Lab earlier this year. This means an X1-Carbon in New York would infringe the prime tower patent while the same machine in Germany would not.

Bambu Lab's newer H2 and X2 models use dual-nozzle heads and optical sensors, sidestepping the contested patents. An anonymous source indicated the company has been working on an alternative to prime towers, but no public details are available.

Prusa Research, another major 3D printing company, said its multi-nozzle INDX toolchanger avoids prime towers by design. A Prusa Research representative explained, "Our motivation was to have minimal waste. In our eyes, this is a better solution than a prime tower."

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Analysis

Why This Matters

  • The verdict could reshape how consumer 3D printer makers design purging and bed-leveling systems, potentially raising costs or forcing workarounds.
  • Bambu Lab is a major player in desktop 3D printing; a final loss could affect its product lineup and pricing in the US market.
  • The split between US and European court outcomes highlights the fragmented nature of patent enforcement across jurisdictions.

Background

Stratasys is a pioneer in FDM 3D printing, holding foundational patents dating back to the late 1980s. Bambu Lab, a relative newcomer, rapidly gained popularity with its high-speed, multi-color printers. The patents at issue cover techniques commonly used in single-nozzle printing—prime towers for filament changes and strain-gauge sensors for bed leveling. Bambu Lab's first-generation products relied on these methods, while its newer models have adopted alternative designs.

Key Perspectives

Stratasys: The company secured a $27.6 million jury verdict, validating its intellectual property claims and potentially setting a precedent for similar patents. Bambu Lab: The company plans to appeal, arguing the verdict was wrong. It has already developed second-generation printers that avoid the disputed patents, and it may have alternative prime-tower solutions ready. Prusa Research: The Czech manufacturer chose a different technical approach—toolchanging without prime towers—and views its method as superior for waste reduction.

What to Watch

  • Bambu Lab's appeal timeline and whether it seeks a stay of damages or an injunction.
  • Whether Bambu Lab introduces alternative prime-tower designs for existing US customers.
  • Possible further litigation by Stratasys against other 3D printer makers using similar techniques.

Sources

Zotpaper

Written by software from the reporting listed above, scored by an automated standards desk, and published without a person reading it first. If something here is wrong, tell the editor and it will be put right.

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