The Modix BIG-120Z V4 is a large-format FDM 3D printer (600 × 600 × 1200 mm) built for tall, one-piece parts, reducing splits and post-processing while improving strength; as the fourth-gen BIG series model it adds stronger Nema-23 motors, CNC-machined brackets, and the Griffin printhead for precision and reliability, plus a fully enclosed design supporting up to 110 °C for materials like PLA, PETG, ABS, ASA, PC, Nylon, TPU, and composites. It prints up to 250 mm/s with ~10 µm X/Y accuracy and includes automated calibration, optical end-stops, a filament-clog detector, and an optional Modix IDEX add-on (also usable as an automatic filament changer). Aimed at professional use across automotive, construction, manufacturing, education, and more, it offers Wi-Fi remote control and a modular ecosystem — air filtration, magnetic bed, 8 kg spool shelf — for long, industrial-grade, tall, seamless prints.
The productivity of the Modix Big-120Z 3D printer depends on the extruder, with Griffin variants ranging from ~46.9 g/h (High-Resolution) to over 500 g/h (Ultra), driven by differences in hotend length, melt path design, and heater power.
| Feature / Spec | Griffin (Standard) | Griffin High-Resolution | Griffin High-Flow | Griffin Ultra |
|---|---|---|---|---|
| Use Case | All-purpose printing | Ultra-fine detail | High-speed, large prints | Maximum throughput, industrial use |
| Design | Standard hotend | 50% shorter for precision | Double-length for more melt volume | Extended dual-zone melt path (4× standard) |
| Flow Rate | ~30 mm³/s | ~15 mm³/s | ~45–60 mm³/s | ~160 mm³/s |
| Extrusion Rate | ~93.8 g/h | ~46.9 g/h | ~140.6–187.5 g/h | >500 g/h |
| Nozzles | Volcano-compatible; 0.4, 0.6, 0.8mm | Volcano-compatible; 0.4mm | Volcano-compatible; 1.0mm | Volcano-compatible; 1.6mm |
| Heater | 50W standard | 50W standard | 80W upgraded | Dual heaters (>80W) |
| Cooling | Standard fan | Standard fan | Standard fan | Dual XXL blowers |
| Max Temp | Tested to 340°C, supports up to 500°C | Tested to 340°C, supports up to 500°C | Tested to 340°C, supports up to 500°C | Tested to 340°C, supports up to 500°C |
| Build Volume Impact | None | None | None | Reduces X by 50mm; Y by 50mm (IDEX mode) |
The upgraded Griffin printhead handles up to 450°C and supports 0.4 to 1.2 mm nozzles, ensuring reliable extrusion for both detailed and fast prints.
The optional Griffin High-Resolution Extruder supports tight tolerances. For example, this video shows 50-micron layer height printing on the Modix BIG-60, producing two detailed 11.5mm bolt parts in 27 minutes. Printed in Glitter Gray PLA using a 0.4mm nozzle at 185°C, 55°C bed, 2.5mm retraction, 100% fan, 2 outer walls, and 7 top solid layers.
The optional Griffin Ultra hotend halves production time — a 1-meter statue printed in 21 hours vs. 47 with the standard Griffin Extruder.
The Modix BIG-120Z's reinforced structure, with Nema-23 motors and CNC-machined brackets, ensures stable layer adhesion, and smooth 40-micron resolution across the full 1200 mm Z-axis. For example, look at the following PETG part 3D printed by Rene Le Grand.
The motion system of the Modix-120Z uses HIWIN linear rails on the Z-axis for smooth, low-vibration movement. TMC2660 stepper drivers with 256 micro-stepping ensure precise positioning — 10-micron on X/Y axes and 0.5-micron on Z. As an example, the Modix BIG-120Z shows a 1150 x 50 x 50 mm rocket model printed in PLA with a 0.8 mm layer height.
The BIG-120Z V4 uses a Duex 5 expansion board with dedicated drivers for each Z and X motor, enabling advanced automated calibration: bed tilt, 100-point bed leveling, gantry alignment, and Z offset calibration between the nozzle and the BL Touch probe — all improving print quality.
3D Print Sample:
Optical end-stop switches boost mechanical reliability with improved accuracy and repeatability, especially useful for resuming prints after power outages.
The fully enclosed aluminum composite design ensures stable printing temperatures for consistent layer bonding with high-temp materials.
The filament clog detector identifies under-extrusion, helping the BIG-120Z V4 maintain high print quality during long prints, producing tall, seamless parts with minimal post-processing.
The Modix BIG-120Z V4 supports over 12 filament types, from PLA and PETG to advanced materials like ABS, PC, Nylon, TPU, and composites such as Carbon Fiber and Woodfill. Its Griffin printhead heats to 450°C, with upgrades reaching 500°C, and the bed heats to 110°C — ideal for high-temp filaments. An optional aluminum enclosure improves temperature stability for materials like ABS, ASA, and PC. Hardened steel nozzles (0.4–0.8 mm) resist wear from abrasive filaments. As an open material system, it works with any standard 1.75 mm filament, giving users flexibility with third-party options.
PLA Print Sample:
Credit: Paul Vincent, Modix Facebook Group
PLA Print Sample:
Credit: Paul Vincent, Modix Facebook Group
TPU Print Sample:
Credit: Paul Vincent, Modix Facebook Group
ASA Print Sample:
PLA and PETG 3D Print Samples: Kim Farkas, a French artist and Beaux-Arts de Paris graduate, revolutionized his work by creating large tubular structures using fewer parts. He employs the Griffin printhead to produce transparent PLA and PETG components.
The BIG-120Z V4 features a 3 kg spool holder, a PEI sheet for easy print release after cooling, and a filament sensor that detects run-out, under-extrusion, and clogs. An optional 8 kg spool shelf supports longer prints.
The optional IDEX enables dual-material printing, ideal for combining structural filaments with water-soluble supports. It includes a second Griffin printhead, clog detector, PTFE tube, and spool mount. Modix also offers compatible soluble filament and a dissolving solution for complex geometries.
Printing with breakaway support filament
Printing with soluble support filament (PVA)
The Modix BIG-120Z V4 offers a tall 600 x 600 x 1200 mm build volume (432 liters), prioritizing vertical space over footprint. Its 1200 mm Z-axis enables printing tall objects in one piece, for example, a 1.2 m Coca-Cola bottle.
The Modix BIG-120Z V4 stands out with a taller 1200 mm build height versus the Optimus P1’s 1100 mm, enabling larger prints. Its Griffin Ultra extruder reaches 500°C, surpassing the P1’s 300 °C limit for advanced material compatibility. Though heavier and starting at $12,000, the BIG-120Z delivers industrial-grade precision (down to 50 microns) and optional IDEX support, making it ideal for professional, high-volume, multi-material printing. The P1, while more affordable, offers fewer features for advanced use.
| Specification | Modix BIG-120Z V4 | Optimus P1 |
|---|---|---|
| Price (USD) | $12,000+ | $5,000+ |
| Build volume (mm) | 600 × 600 × 1200 | 600 × 600 × 1100 |
| Enclosure / chamber | Optional enclosure (aluminum composite panels), no active heated chamber | Optional aluminum + acrylic enclosure, no active heated chamber |
| Extruders / IDEX | Single (Griffin); IDEX optional | CoreXY direct drive, single extruder |
| Max nozzle temp (°C) | Up to 500 | 300 |
| Max bed temp (°C) | 120 | 100 |
| Connectivity | USB, SD card, Wi-Fi | USB, SD card |
| Touchscreen | 7-inch color touchscreen | 3.5-inch touchscreen |
| Machine weight | Approx. 140 kg | Approx. 55 kg |
| Assembly | Self-assembly kit with video guidance | Self-assembly kit |
The Modix BIG-120Z provides 3 distinct printer control methods.
1. 7-Inch Touchscreen Interface
The BIG-120Z features a 7-inch color touchscreen with the Duet3D 3D printer controller, offering intuitive, menu-driven access to print management, calibration, and settings. A frontal power switch offers an easy-to-reach power on/off button, useful when the printer is installed in a tight corner.
2. Remote Web Interface (Wi-Fi)
The BIG-120Z's Duet2 Wi-Fi controller allows remote operation via a web interface, letting users upload G-code and manage prints from any network-connected device.
3. File Transfer via USB and SD Card
The printer supports USB and SD card file transfer, allowing standalone printing or direct control via external slicer software or command interfaces.
The BIG-120Z V4 supports 3 connectivity options — USB, SD card, and Wi-Fi for file transfer and control. Users can access the printer via its IP address shown on the touchscreen. For Wi-Fi-restricted environments, users can buy a Duet3D Ethernet board as an alternative.
The BIG-120Z V4’s Duet3D control board enables full remote management via a web interface on any device, allowing file transfers, monitoring, and settings adjustment without physical access to improve the overall user experience. Initial setup follows the standard Duet3D network configuration process.
The BIG-120Z V4 supports all major slicers — Cura, Simplify3D, PrusaSlicer, OrcaSlicer, and offers dedicated 3D printing profiles for these in the Download area.
The BIG-120Z V4 runs on the open-source Duet RepRap firmware, powering both its touchscreen and web interface. It supports automated calibration, filament monitoring, and power-loss recovery. The web interface works on any device, enabling full remote control, including file transfers and settings adjustments. All standard 3D file formats are supported, ensuring compatibility.
The BIG-120Z V4 features a vertical 600 x 600 x 1,200 mm build volume and a modular black aluminum frame shipped as a self-assembly kit, aiding customization, maintenance, and user familiarity.
As the fourth-generation Modix 3D printer, the BIG-120Z V4 includes front and side doors with elastic seals, a rear hatch, and a top cover with pneumatic support for easy access. Internal LED lighting improves visibility during printing.
The printer lacks a fully heated chamber by default, but its enclosure panels and access features enhance safety and temperature stability.
The BIG-120Z V4 uses HIWIN linear guides and reinforced Gates belts for precise positioning on tall vertical prints.
The fourth-generation BIG-120Z V4 uses NEMA 23 motors instead of NEMA 17, providing higher torque and stability for moving the large bed and gantry with precision.
The BIG-120Z V4 has a 600 x 600 mm heated build platform with 1,200 mm Z-travel. A BLTouch probe enables automatic bed leveling, managed by the Duet controller and Duex5 expansion board.
The bed comes with an aluminum + PEI surface, with an optional magnetic system that uses an adhesive sheet and a removable spring steel plate for easier part removal and maintenance; the flexible spring steel plate is dual-sided, with a textured PEI powder-coated face and a smooth glossy PEI sheet for a polished finish.
The BIG-120Z V4 uses the Modix Griffin printhead with a Bondtech dual-drive extruder and E3D Super Volcano hotend, enabling high-flow, high-temperature printing. It supports standard 1.75 mm filament.
For expanded production, the BIG-120Z V4 can be upgraded with an IDEX system, adding a second Griffin printhead, an extra Y-axis motor, and supporting motion components.
The BIG-120Z V4 includes a built-in filament sensor that detects clogs, under-extrusion, and filament run-out — standard in the Modix Generation 4 printers.
Filament is stored externally, with default support for up to 3 kg spools. The upgraded Gen 4 filament rack improves stability and supports spools up to 8 kg for smoother feeding.
The BIG-120Z V4 uses a 32-bit Duet 3D controller with a Duex5 expansion board for multi-axis motion and expanded I/O. The Duex5 supports automated calibration, including gantry alignment, bed leveling, and Z-offset adjustment.
The BIG-120Z V4 is controlled via a 7-inch touchscreen or remotely through Wi-Fi or Ethernet for monitoring and file uploads.
The BIG-120Z V4 uses separate power supplies: high-current AC for the heated bed and 24V DC for motion electronics. The optional Modix Power Distribution System improves safety and stability by consolidating power lines.
The Modix BIG-120Z V4 3D printer kit includes:
The BIG-120Z V4 ships as a DIY kit with all components — structural parts, electronics, motion system, and fasteners — organized in multiple boxes. Assembly tools are included, and no extra equipment is needed. The 7-inch touchscreen is pre-configured with Duet3D firmware, and the SD card contains setup files and documentation. Buyers also get access to the Modix customer zone with 3D assembly manuals, user guides, and slicing profiles.
Please Note: Package contents are determined by the manufacturer and may change without notice. To confirm the current items included with this product, please contact a Top3DShop sales representative before placing your order.
The Modix large 3D printers support 18 upgrades.
| Accessory | Function | Price (USD) | Image |
|---|---|---|---|
| BIG-120Z Enclosure | Enclosure panels that keep the print chamber warm and protected; helps reduce warping and lowers noise. | $2,464.00 |  |
| Griffin Ultra | High-flow hotend upgrade designed for very fast extrusion (up to 500 g/hour). | $1,232.00 |  |
| Griffin High-Flow | High-flow hotend upgrade for printing large objects faster; includes heat-block, 80W heater, PT-1000 thermistor, and 1.0 mm nozzle. | $392.00 |  |
| Spare Griffin Hotend | Spare parts set for the Griffin hotend (heatbreak, heat block, nozzle, heater, thermistor, and silicone sock). | $201.60 |  |
| IDEX Dual Print-head | Independent dual-extruder upgrade for dual-material printing or automatic filament changing (using a second toolhead). | $1,232.00 |  |
| IDEX Calibration Tool | Hands-free calibration tool for precise dual-nozzle alignment on IDEX systems. | $224.00 |  |
| Filament Dryer | Dryer unit that removes moisture from filament; fits two 5 kg spools or one 8 kg spool (plus storage). | $1,792.00 |  |
| Griffin Brass Nozzles Pack | Brass nozzle set for the Griffin system (0.4 / 0.6 / 0.8 / 1.0 / 1.2 mm) to change layer height and flow. | $67.20 |  |
| Griffin Hardened Steel Nozzles Pack | Hardened steel nozzle set (0.4 / 0.6 / 0.8 mm) for abrasive filaments (e.g., carbon-fiber-filled, glass-fiber-filled); rated up to 450°C. | $190.40 |  |
| Magnetic Bed | Removable spring-steel magnetic build plate for easier part removal; PEI-coated surfaces on both sides (rough and glossy). | $672.00 |  |
| Extra PEI Sheet | Replacement PEI build surface sheet (660 × 660 mm) for the bed plate. | $168.00 |  |
| Active Air Filter | Three-stage air filtration unit: pre-filter (dust), HEPA (sub-micron particles), and activated carbon (fumes). | $1,512.00 |  |
| Casters | Wheel set with adjustable leveling feet for easier printer movement and reduced vibration. | $168.00 |  |
| Power Distribution Unit | Integrated high-power power distribution unit (PDU) for safe, organized routing of AC power inside the machine. | $1,008.00 |
|
| Spools Shelf | Large spool shelf that supports up to 8 kg spools (instead of the default 3 kg limit) using bearing rollers for smoother feeding. | $448.00 |  |
| Basic Maintenance Kit | Essential spare components for the print head and motion system to keep the printer operational. | $336.00 |  |
| Advanced Maintenance Kit | Expanded spare-parts kit (belts, pulleys, screws, bearings, motors, printhead parts, fasteners) designed for Modix printers V4. | $1,568.00 |  |
| Filter Spares Set | Replacement filter set for the air filter system: 5× pre-filters and 1× HEPA/carbon combo filter. | $336.00 |  |
The Modix Big-120Z requires 9+ scheduled maintenance procedures to ensure stable motion, accurate calibration, and reliable extrusion.
Daily maintenance
Weekly maintenance
Monthly maintenance
Semi-annual maintenance
The BIG-120Z’s tall build volume requires regular motion and temperature recalibration to ensure consistent print quality on large parts.
The BIG-120Z V4 includes a 12-month warranty covering all non-consumable parts, excluding items like PEI sheets and nozzles. Coverage for mechanical and electronic systems can be extended up to two more years. Modix offers comprehensive support for BIG-120Z V4 owners, including access to the Customer Zone with manual, print profiles, firmware, videos and online 3D models. Support is available via email Sunday–Thursday (09:00–18:00 GMT+2), with video sessions on request, ensuring timely help with setup, troubleshooting, and operations. For those who prefer not to self-assemble, professional assembly by Top3DShop is available as a paid service.
Full warranty terms: https://www.modix3d.com/terms
| Service Package | Description | Price (USD) |
|---|---|---|
| 3-Hour Call with Modix 3D Technicians | Remote optimization support for design, slicing settings, and material selection; includes 3 hours of video calls with Modix technicians. | 500 |
| 1-Year Warranty Extension | Extends Modix manufacturer warranty by 12 months beyond the standard warranty period. | 750 |
| 2-Year Warranty Extension | Extends Modix manufacturer warranty by 24 months beyond the standard warranty period. | 1,500 |
| Assembly Services by Top3DShop (Off-Site) | Off-site assembly of the Modix kit per official manual + calibration (bed compensation ≤2 mm corner-to-corner), IDEX XY calibration (if applicable), test prints (cube/mesh), photo/weekly progress reporting, and delivery of assembled unit (per agreement terms). | 10,000 |
| Assembly Services by Top3DShop (On-Site) | On-site assembly and commissioning at customer facility; includes the same assembly/calibration/test-print scope plus on-site handover/training and verification as described in the agreement. | 15,000 |
The Modix BIG-120Z V4 is available at $8,960.00, offering strong value for its 600 x 600 x 1200 mm build volume. The base price includes the full DIY kit, assembly tools, and a 12-month warranty.
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