Machine manufacturer BigRep is arriving at RAPID + TCT 2026 (April 14–16, Boston) with two announcements that signal the intent of making large-format additive manufacturing more automated, more accessible, and more material-flexible than ever before.
The first is the BigRep ONE.5X, a fully automated evolution of the ONE platform, a machine that has anchored BigRep’s large-format offer since the company’s earliest days. As we have covered since BigRep’s beginnings, the ONE has been one of those rare platforms capable of shaping how industrial users think about large-scale FFF printing.
The ONE.5X builds on that legacy with a new generation of automation features: XYZ autocalibration, adaptive bed mesh leveling, auto-sequential printing, and a Relay Mode that switches extruders automatically when material runs out. The result is a machine designed to keep production running with minimal operator intervention, including overnight.
The new HMI — already seen on the BigRep VIIO 250 — makes the ONE.5X considerably more approachable without sacrificing depth. Over-the-air software updates, a pressure advance algorithm for cleaner geometry, and vibration compensation round out a feature set that cuts total print time by up to 10%.
The second announcement is a co-development partnership with Vermont-based Massive Dimension, bringing pellet-based extrusion to the BigRep ONE platform for the first time via a new MDX extruder. Pellet extrusion is not new to large-format AM, but it has remained largely separate from the filament-based ecosystems that companies like BigRep have built. This collaboration changes that equation.
“The MDX is not just an iteration. It’s a reset. We removed complexity and reduced weight to create a more capable and more adaptable extrusion system, built for where the market is going,” Tyler McNaney, Founder and CTO, Massive Dimension.
The MDX is 25% lighter than its predecessor, built with 40% fewer parts, and designed for fast servicing directly on the shop floor, a meaningful consideration in production environments where downtime matters.
Pellet-based printing enables higher throughput, lower material costs, and broader material flexibility, making it particularly well-suited for large functional parts, molds, and furniture. BigRep and Massive Dimension are targeting availability by end of 2026.
Both announcements will be on display at Booth #2355.
For ongoing coverage of BigRep’s developments in large-format additive manufacturing, visit our BigRep archive on 3D ADEPT Media.
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