iFactory Factory One Belt Review

A bold idea, undercut by execution

The iFactory Factory One Belt first appeared in 2020 as one of the earliest consumer-focused conveyor 3D printers, offering capabilities once limited to industrial systems. At a time when continuous printing and angled layer deposition felt experimental, it made these features accessible to hobbyists and small businesses. Makers who'd struggled with splitting long parts or juggling endless print cycles suddenly had an affordable tool that could tackle projects in a single run.

Early community feedback was enthusiastic, with forums showcasing endless belt-printed props, cosplay weapons, and production runs lined up to roll off the machine. But our own testing told a more cautious story: component quality-control issues caused prints to fail outright. The concept is exciting; the execution isn't yet dependable.

The Conveyor-Belt Concept

iFactory3D's approach centers on making continuous belt printing user-friendly and practical. The angled print head and rolling belt allow prints of virtually unlimited length, batch production without operator intervention, and creative new applications. Where traditional FDM printers limit you to the size of the print bed, this design scales beyond those boundaries, a leap into fresh territory for anyone producing long props, small-batch products, or experimental designs.

Unboxing and Setup

Setting up the Factory One Belt feels a little different from a conventional FDM printer. The packaging is secure and parts are well-organized, so you don't spend hours sorting screws. Major components arrive preassembled, and the manual guides you clearly. Within about an hour you can move from unboxing to the first calibration run, with the unique step being mounting and tensioning the belt.

What's in the Box?

• ▪Factory One Belt (partially preassembled)
• ▪Print head with angled extruder
• ▪Conveyor belt platform
• ▪Power supply and touchscreen
• ▪Spool holder
• ▪Toolkit: Allen keys, wrenches, screws
• ▪Nozzle cleaning tools
• ▪USB cable and SD card with adapter
• ▪Test filament sample
• ▪Quick start guide / manual

Our Initial Impressions

The Factory One Belt gives off an innovative feel from the first unboxing. The frame feels solid, and the conveyor system looks more professional than many expect from a consumer machine. The touchscreen responds quickly and is easy to navigate. Once assembled, the printer has a commanding presence, its angled head and long belt strongly suggesting projects no ordinary FDM printer can handle. Noise is noticeable but manageable, on par with other open-frame machines of similar size.

Design and Specifications

The Factory One Belt stands out for its angled print head combined with a moving conveyor platform. This design allows prints of virtually unlimited length and continuous batch production. Its reinforced metal frame gives stability during long jobs, while the belt itself is durable and resistant to warping under heat.

Specs at a Glance

• ▪Build Volume: 180mm wide × unlimited length
• ▪Nozzle: 0.4mm (interchangeable)
• ▪Layer Height: 0.1-0.4mm
• ▪Extruder: Direct drive
• ▪Filaments: PLA, PETG, TPU, ABS
• ▪Bed Leveling: Assisted belt leveling
• ▪Belt: Heated, high-grip surface
• ▪Connectivity: USB, SD card
• ▪Display: Touchscreen interface

Print Performance

When it works, the Factory One Belt shows real promise. Standard models have clean surfaces and consistent layers, and the angled deposition benefits overhangs and bridges, reducing the need for excessive supports. Thanks to the conveyor, printing long parts (props, rails, or batch runs of functional pieces) is seamless, and the strong belt grip keeps adhesion reliable from first layer to last.

For small, detailed models, the angled layers can make surfaces look slightly different from flat-bed prints. Slicer tuning helps minimize this. The bigger issue we hit was consistency: component quality control was uneven enough that some prints failed to complete, which is what holds this machine back from a recommendation.

Test Print Results

Common Issues and Fixes

Belt printing brings its own quirks, mostly in how the conveyor moves, how angled deposition works, and the demands of multi-day prints:

• ▪Adhesion that's too strong — lightly sand the belt or apply glue stick, hairspray, or PTFE spray so prints release without fusing.
• ▪Belt alignment drift — re-tension with the adjustment knobs and check tracking every few prints to prevent skewed layers.
• ▪Stringing on long prints — fine-tune retraction, drop nozzle temp 5-10°C, and enable coasting and wiping in the slicer.

Comparisons with Competitors

There are pricier and more industrial conveyor printers, but the Factory One Belt aims to balance print width, continuous output, and approachability. Here's how it lines up against the main alternatives.

For about the same money, the Creality CR-30 PrintMill offers a more proven belt-printing experience. That's where we'd steer most buyers until iFactory's quality control catches up to its ambition.

Our Final Verdict

The Factory One Belt's strengths are clear: unlimited-length parts, continuous batches without interruption, and solid handling of flexible materials via direct drive. If your projects often involve oversized models or repeated production, that capability is genuinely appealing, and the concept still stands out in 2025.

But you have to stay mindful of its quirks, and in our testing the bigger problem was reliability. Component quality control led to failed prints, and that's hard to overlook at this price. If conveyor printing excites you, the concept is worth exploring, but we'd point most buyers to the Creality CR-30 PrintMill for a more dependable experience.