Product Description
Copymaster3D Voron2 V2.4 R2-SB Kit – 350 × 350 × 350 mm with StealthBurner is a complete construction kit of key hardware for building the legendary community printer
Voron 2.4 R2 in the largest 350 mm format. The kit is designed for use with the
StealthBurner toolhead (hotend + extruder) and offers a top-tier combination of speed, precision, and modification options.
The kit includes all essential
mechanical and electronic components needed to assemble the printer – including the
BTT Octopus v1.1 control board,
V6 hotend with titanium heatbreak,
Panasonic AQA211VL SSR relay (15 A / 250 V), and a robust aluminum frame.
Printed plastic parts and Raspberry Pi are not included and must be obtained separately by the user.
Thanks to the
CoreXY kinematics, large build volume, and modular design, it is an ideal choice for demanding users, schools, and workshops that want to build on the proven open‑source Voron Design.
Key Features
- Large build volume 350 × 350 × 350 mm – suitable for large parts, functional prototypes, and multi-part orders.
- CoreXY kinematics – high speeds and acceleration while maintaining accuracy and print quality.
- Ready for StealthBurner
- extremely powerful hotend and extruder combination
- improved print cooling with a large part‑fan
- support for RGB LEDs in the front of the toolhead
- compatibility with Clockwork2 (CW2) and upgrade options (LGX Lite, Orbiter, etc.).
- Quality Electronics
- BTT Octopus v1.1 – powerful 32-bit board with plenty of inputs/outputs for future expansion
- Panasonic AQA211VL SSR – safe switching of the heated bed (15 A / 250 V).
- V6 hotend with Bowden mount and titanium heatbreak – durable and proven design, upgradeable to Phaetus Voron Dragon or E3D Revo™ Voron and operation in Direct Drive configuration (StealthBurner).
- Robust aluminum frame – high rigidity, minimized vibration, and consistent print quality even at high speeds.
- Modular and fully open design – easy upgrades, modifications, and tuning; manuals, BOM, and STL files available on the Voron Design website.
- Complete mechanics and wiring set – guide rails, bearings, GT2 belts, screws, T‑nuts, wiring, and other necessary hardware.
Detailed Description
Construction and CoreXY Kinematics
Voron 2.4 R2 utilizes
CoreXY kinematics with a moving gantry design. X/Y motors are located in the frame, reducing moving mass and allowing:
- significantly higher speeds and accelerations than traditional i3/Ender designs,
- lower vibrations and ghosting on the model surface,
- very precise and repeatable positioning even during long-term operation.
The rigid
aluminum frame complemented by high-quality linear guides and precision parts ensures stable machine geometry, making the machine suitable for fast printing of technical materials (e.g., PETG, ABS/ASA, PA) with high accuracy requirements.
StealthBurner and Extruder System
The
R2‑SB variant is designed for the iconic
StealthBurner toolhead, which combines the extruder and hotend into one compact unit:
- larger part‑cooling fan for stable cooling even at high speeds,
- integrated RGB LEDs for status signaling and impressive looks,
- support for various extruders – standard Clockwork2 (CW2), easy upgrade to LGX Lite, Orbiter, etc.,
- possibility to transition from Bowden configuration to Direct Drive when fitted with a suitable hotend (e.g., Dragon, Revo™ Voron).
This combination ensures a
reliable filament feeder and excellent extrusion control, which is essential for flexible materials and very high-speed printing.
Electronics and Control
The heart of the printer is the
BTT Octopus v1.1 – a modern 32-bit board with plenty of power headroom and expandability. It offers enough connectors for:
- multiple stepper motors and Z-axis control,
- additional sensors (e.g., height sensors, door‑switch, current sensors),
- other future upgrades (input shaper, auto‑bed leveling, chamber, etc.).
For safe switching of the heated bed, the kit includes a
Panasonic AQA211VL SSR (15 A / 250 V). This ensures stable heating even for larger and more powerful heatbeds.
Note: The kit does not include Raspberry Pi, which is recommended for running Klipper/Fluidd/Mainsail and remote management.
Mechanical Components and Hardware
In the package, you will find complete
mechanical hardware for assembling the Voron 2.4 R2 in 350 mm size:
- profiled aluminum frame including connecting material,
- linear guides and bearings for X/Y/Z axes,
- GT2 belts, pulleys, and idlers for CoreXY drive,
- screws, T‑nuts, couplers, and other standard elements,
- complete wiring and connectors ready for connection.
Printed parts (plastic components according to Voron Design) are not part of the kit – the user either prints them on an existing printer or orders them from a specialized supplier.
Who is the kit suitable for
This kit is ideal for:
- advanced users and makers who want to understand the details of mechanics and electronics by building the printer,
- fablabs, schools, and technical clubs where the goal is not just printing, but also education in the field of 3D printer construction,
- users who want a fast, quiet, and highly reliable CoreXY machine, adaptable to future needs.
Conversely, the kit is not suitable for those looking for an
immediately ready "out of the box" printer – it is a construction set where time for assembly, calibration, and tuning must be expected.
Main Advantages
- Large build volume 350 × 350 × 350 mm.
- Top-tier CoreXY kinematics and robust frame.
- StealthBurner support – excellent cooling, RGB, flexible extruder options.
- Quality electronics (BTT Octopus v1.1, Panasonic SSR).
- Proven open‑source project Voron 2.4 R2 with massive community support.
- Modularity and upgrade‑friendly design.
Limitations and what needs to be added
- Printed parts are not included – must be printed or purchased separately.
- Raspberry Pi is not in the package – recommended for running Klipper.
- Requires time and experience with building and tuning 3D printers.
Technical Specifications
| Parameter |
Value |
| Product type |
3D printer construction kit (DIY kit) |
| Model |
Copymaster3D Voron2 V2.4 R2-SB Kit |
| Build volume |
350 × 350 × 350 mm |
| Kinematics |
CoreXY |
| Control board |
BTT Octopus v1.1 |
| Hotend |
V6 style, Bowden, titanium heatbreak |
| Extruder |
kit of components for CW2 (Clockwork2), ready for StealthBurner |
| SSR relay |
Panasonic AQA211VL, 15 A / 250 V |
| Frame |
Aluminum profile frame |
| Cooling |
Large part‑cooling fans, preparation for RGB LEDs in StealthBurner |
| Necessary to add |
Raspberry Pi, printed parts Voron 2.4 R2 (including StealthBurner), possibly glass/PEI sheet as per choice |
| Recommended upgraded hotends |
Phaetus Voron Dragon, E3D Revo™ Voron (for Direct Drive configuration) |
Package Content (approximate)
- Complete aluminum frame and connecting material.
- Linear guides and bearings for all axes.
- GT2 belts, pulleys, idlers for CoreXY.
- V6 hotend with titanium heatbreak (Bowden setup).
- BMG / CW2 extruder kit for StealthBurner.
- BTT Octopus v1.1 control board.
- Panasonic AQA211VL SSR (15 A / 250 V).
- Complete mechanical and assembly hardware (screws, T‑nuts, standoffs, etc.).
- Wiring and connectors ready for connection.
SEO – recommended keywords in text
The description naturally contains main keywords for the market, such as:
Voron 2.4 kit, Voron 2.4 R2, Copymaster3D Voron, CoreXY 3D printer, 3D printer construction kit, Voron StealthBurner, BTT Octopus, large format 3D printer 350×350×350 etc., so that the product targets searches like
"Voron 2.4 construction kit",
"Voron kit 350 mm" or
"CoreXY 3D printer for building".
Key Features:
- Complete hardware kit for Voron 2.4 R2-SB in size 350 × 350 × 350 mm
- CoreXY kinematics with high speed and print accuracy
- Ready for StealthBurner – powerful hotend + extruder toolhead with RGB LEDs
- BTT Octopus v1.1 control board with plenty of power headroom and expansion options
- V6 hotend with titanium heatbreak, upgrade option to Dragon or E3D Revo™ Voron
- High-quality SSR relay Panasonic AQA211VL included for safe heated bed switching
- Robust aluminum frame and quality linear guides for stable printing
- Modular open‑source design Voron 2.4 R2 with wide community support
- Ideal for advanced users who want a fast and reliable DIY CoreXY printer
- Without Raspberry Pi and printed parts – maximum flexibility when choosing electronics and material of printed components
