Mellow FluxHeat V6 2.85mm Hotend – Voron VzBot BLV 3D Printer

Mellow FluxHeat V6 2.85mm Hotend – High-Performance for DIY 3D Printers

The Mellow FluxHeat V6 2.85mm Hotend is a next-generation, compact hot end engineered for professional and industrial 3D printing scenarios. Whether you're running large-format workpieces or high-volume flexible filament jobs (including 2.85mm TPU), this hotend delivers fast heating, stable extrusion, and precise bed leveling integration. Compatible with Voron, BLV, VzBot, Hevort, and other popular DIY 3D printer platforms.

Made in Mainland China.

Key Features of the FluxHeat V6 Hotend

1. Ultra-Compact Design

• Ceramic Heater Block: Minimizes heat block volume and improves temperature control accuracy.
• Lightweight Construction: Reduces overall printhead mass, improving printer dynamics and print speed.

2. High-Power Heating System

• 96W Heater: Reaches target temperature in seconds, significantly reducing warm-up time.
• Up to 350°C: PT1000 temperature sensor supports high-temperature materials with precise thermal control.

3. Optimized Thermal Insulation

• TC4 Titanium Alloy Break: Reduces heat transfer to the heat sink and is more wear-resistant than stainless steel, delivering stable, consistent print results.

4. Titanium-Reinforced Structure

• Innovative Screw Support Frame: Distributes mechanical stress across the hot end assembly, improving long-term reliability during extended print runs.

5. V6 Nozzle Compatibility

• Standard V6 Copper Nozzle included; easily interchangeable with hardened steel, tungsten carbide, or silicon carbide nozzles to accommodate abrasive or high-temperature filaments.

6. Excellent Flow Performance

• >40 mm³/s Throughput: Ensures stable material feeding during high-speed printing, maximizing production efficiency.

ALPS Pressure-Based Auto Bed Leveling Module (Set 2)

The optional ALPS module integrates seamlessly with the FluxHeat V6 for automated, nozzle-based bed leveling calibration.

Highlights:

• 24-Bit High-Precision ADC (ADS131M02 Chip): Samples at 64 kHz to detect minute pressure changes — outperforms standard HX711-based sensors.
• 128× On-Chip Signal Gain: Enhances sensitivity and signal-to-noise ratio for reliable bed-trigger detection.
• Low-Drift Reference & Kalman Filtering: Reduces measurement error by over 90%, delivering ultra-stable readings.
• USB Plug-and-Play Threshold Adjustment: Real-time tuning via PC — no coding or firmware tweaks required.
• Broad Firmware Compatibility: Works with Klipper, Marlin, RRF, and other popular firmwares for pressure-based leveling workflows.
• 1.5M Cable Included for direct connection to motherboard UART interface.

Gear Extruder Compatibility

Pairs with the 2.85mm 60T 12mm Gear Vz-Hextrudort-Low Plus extruder. Gears are machined from hardened steel with nickel-plated surfaces for superior wear resistance and longevity. High-precision CNC machining ensures accurate dimensions, high concentricity, and burr-free operation for more precise filament control and superior print quality.

Available Sets / Package Options

• Set 1: FluxHeat V6 2.85 Hotend × 1, 96W High-Performance Heater × 1, NN PT1000 Temperature Sensor × 1, High-Performance Thermal Grease × 1
• Set 2: FluxHeat V6 2.85 ALPS Hotend × 1, 96W High-Performance Heater × 1, NN PT1000 Temperature Sensor × 1, High-Performance Thermal Grease × 1
• Set 3: Black Vz-Hextrudort-LowPlus × 1 (motor not included)
• Set 4: Moons 8T 36mm Stepper Motor × 1
• Set 5: Moons 10T 36mm Stepper Motor × 1
• Set 6: LDO 8T 36mm Stepper Motor × 1
• Set 7: LDO 10T 36mm Stepper Motor × 1
• Set 8: Silicone Socks × 2
• Sets 9–15: 2.85mm Hardened Steel Nozzles × 2 — available in 0.4 / 0.6 / 0.8 / 1.0 / 1.2 / 1.5 / 2.0mm

Technical Specifications

• Filament Diameter: 2.85mm
• Heater Power: 96W ceramic heater
• Max Temperature: 350°C (PT1000 sensor)
• Flow Rate: >40 mm³/s
• Throat Material: TC4 Titanium Alloy
• Nozzle Type: V6 Standard (swappable)
• Assembly Required: Yes
• Item Type: J-Head Style Hotend
• Compatible Printers: Voron, BLV, VzBot, Hevort, and other DIY 3D printers
• Origin: Made in Mainland China

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: Is the Mellow FluxHeat V6 2.85mm hotend compatible with Klipper firmware?

A: Yes, the FluxHeat V6 hotend and the optional ALPS pressure-based leveling module are both fully compatible with Klipper firmware, as well as Marlin, RRF, and other popular 3D printer firmwares. The ALPS module supports plug-and-play USB threshold adjustment with no custom coding needed.

Q: Which 3D printers is the FluxHeat V6 2.85mm hotend designed for?

A: The Mellow FluxHeat V6 2.85mm hotend is designed for popular DIY 3D printer builds including Voron, BLV, VzBot, and Hevort platforms. It is specifically optimized for printing with 2.85mm diameter filaments including flexible TPU materials and high-temperature engineering filaments.

Q: Can I swap out the nozzle on the FluxHeat V6 hotend?

A: Absolutely. The FluxHeat V6 uses a standard V6-compatible nozzle that is easily interchangeable. You can swap between copper, hardened steel, tungsten carbide, or silicon carbide nozzles to suit your material — whether standard PLA/PETG or abrasive and high-temperature filaments. Hardened steel nozzles in sizes from 0.4mm to 2.0mm are available as add-on sets (Sets 9–15).

Q: What is the maximum printing temperature of the FluxHeat V6 hotend?

A: The FluxHeat V6 supports temperatures up to 350°C, thanks to its 96W ceramic heater and NN PT1000 temperature sensor. This makes it suitable for a wide range of engineering-grade and high-temperature 3D printing filaments, as well as flexible materials like 2.85mm TPU.

Q: Does the ALPS leveling module require any special wiring?

A: The ALPS module comes with a 1.5-metre cable that connects directly to your motherboard's UART interface. Threshold adjustment is performed via USB connection to a PC and requires no firmware modifications or coding, making it straightforward to set up on supported 3D printer platforms.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.