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BIQU H2 V2S Lite - User Manual

BIQU H2 V2S Lite
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Basic Parameters Product Dimensions
Note: Not compatible with standard NEMA14 motor.
Extrusion Method: Dual Gear Extrusion
XYZ Dimensions(including the fan): 72.1 x 37.9 x 80.6mm
Thread of Nozzle/Heat Break: M4
Nozzle Diameter: Φ0.6mm
Maximum Printing Temperature: 270(upgradable to 500.)
Weight: 175g (including Heater Cartridge, Thermistor, and Fan.)
Maximum Extrusion Force: 7.5kg (depending on the filaments.)
Extrusion (based on the existing): 2700mm³/min
(depending on the filaments.)
E-step: 932/mm at 16 microstep (Further calibration
is recommended.)
Recommended Motor Current: 800mA
Gear Ratio: 7:1
Drive Gear Circumference: 24.5mm
Filament Diameter and Tolerance: 1.75 ± 0.05mm
More Guidance
It is recommended to install the fan toward the left; if toward the
right, pay attention to the gear and air vent. There are 10pcs M3
screw holes on the extruder for fixing.
The M3X8 screws provided are suitable for mounting plates with
a thickness of 3~5mm.
Please assemble the hotend with the following steps:
1. Insert the heater cartridge into the heater block;
2. Install the heat break;
3. Place the thermistor head into the designated spot on the
side of the heater block(preferably pack the spot full of thermal
grease, standard thermal grease for PC cooling purposes
should suffice)and clamp down the thermistor wire with the
included M2 screw and washer;
4. Wrap the heater block with the included PTFE tape at least 3
times for optimal thermal insulation(To achieve the ultimate
lightweight and smallest dimension, the thermistor screw and
washer can be neglected, fix the thermistor in place with only
PTFE tape);
5. Install the nozzle(the nozzle should be hot tightened again
after the heater block has been heated to printing temperature).
Heat Break
Heater Cartridge
M2x3 Screw
Washer
Thermistor
Light weight as low as 175g;
Flowrate boosted from 15mm³/s to 45mm³/s;
The idler arm is made of 7075 T6 aluminum, with special
blend high-performance anti-wear MoS2 grease to improve
the quick release lever haptics and enhance wear resistance;
High performance thermal grease has been pre-applied to the
heat break to increase thermal conductivity between the heat
break and heatsink to improve cooling performance;
The filament drive gear is made of tool steel plated with
nano-coating to improve hardness, wear resistance, corrosion
resistance and provides longer life when printing abrasive
materials.
H2 V2S Lite vs Other H2 Series
Products
User Manual
0.0
22.0
50.1
37.1
28.9
2.5
11.9
30.8
0.0
10.0
25.0
35.0
5.8
24.9
49.8
31.5
3.5
6.4
0.0
49.8
35.0
0.0
30.8
5.8
11.1
26.1
6.5
21.5
Preferred
side
for mounting
Leave clear for air flow
10-M3
1
2
3
4
5
Thermistor Type: NTC100K
Rotation distance: 3.433
Question and Answer IconNeed help?

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Summary

Basic Parameters

H2 V2 S Lite vs Other H2 Series Products

Product Dimensions

More Guidance

Hotend Assembly Steps

Step-by-step instructions for assembling the hotend, including cartridge, heat break, and thermistor installation.

About Filament Tension and Filament Release

Filament Release Lever

Instructions on how to release filament by pulling the lever to a specific position.

Maximum Operating Temperature

Heater Cartridge Specifications

Motor Specifications

Fan Specifications

Product Overview

Overview

The Biqu H2 V2S Lite is a compact and lightweight dual-gear extrusion system designed for 3D printing. It boasts enhanced performance and durability compared to previous H2 series products, making it suitable for a wide range of printing applications, including those involving abrasive materials.

Function Description:

The H2 V2S Lite serves as an extruder for 3D printers, responsible for feeding filament into the hotend where it is melted and deposited to form a 3D object. Its dual-gear extrusion method ensures consistent and powerful filament grip, contributing to reliable and high-quality prints. The system is designed for easy integration into various 3D printer setups, with a focus on compact size and efficient operation.

Important Technical Specifications:

  • Extrusion Method: Dual Gear Extrusion
  • Maximum Printing Temperature: 270°C (upgradable to 500°C)
  • Weight: 175g (including Heater Cartridge, Thermistor, and Fan)
  • Maximum Extrusion Force: 7.5kg (depending on the filaments)
  • Extrusion Flowrate: 2700mm³/min (depending on the filaments), boosted from 15mm³/s to 45mm³/s compared to previous models.
  • E-step: 932/mm at 16 microstep (further calibration is recommended)
  • Rotation Distance: 3.433
  • Recommended Motor Current: 800mA
  • Gear Ratio: 7:1
  • Drive Gear Circumference: 24.5mm
  • Filament Diameter and Tolerance: 1.75 ± 0.05mm
  • Thermistor Type: NTC100K
  • XYZ Dimensions (including the fan): 72.1 x 37.9 x 80.6mm
  • Thread of Nozzle/Heat Break: M4
  • Nozzle Diameter: Ø0.6mm (standard)

Motor Specifications:

  • Rated Voltage: DC 3.45V
  • Rated Current: DC 1.5A/phase
  • Phase: 2
  • Winding DC Resistance (25℃): 2.3Ω (±10%)
  • Winding Inductance: 2.0mH (±20%)
  • Holding Torque: ≥110mN·m
  • Positioning Torque: 7mN·mREF
  • Insulation Resistance: ≥100MΩ (DC 500V)
  • Insulation Level: Class B
  • Moment of Inertia: 8g·cm³

Heater Cartridge Specifications:

  • Head Size: 6 x 20mm
  • Voltage: 24V
  • Power: 70W

Fan Specifications:

  • Size: 35 x 35 x 10mm
  • Cable: 150mm
  • Voltage: 24V
  • Speed: 9000±10%
  • Terminal Model: XH2.54

Maximum Operating Temperatures (Individual Parts):

  • Fan: 50°C
  • Motor: 130°C
  • Heater Break: H2 bi-metal (copper alloy + grade5 titanium alloy), 500°C compatibility.
  • Bearing: 100°C Note: These are maximum working temperatures for individual parts, not the entire system.

Usage Features:

  • Lightweight Design: Weighing only 175g, the H2 V2S Lite minimizes inertia on the print head, allowing for faster print speeds and reduced ringing artifacts.
  • Enhanced Flowrate: The boosted flowrate capability supports higher printing speeds and larger volumetric extrusion, improving overall productivity.
  • Adjustable Filament Tension: The drive gear tension can be adjusted by turning the Tensioner Screw. Counter-clockwise increases pressure, while clockwise decreases pressure, accommodating different material filaments. Users are cautioned not to over-tighten to avoid damaging the extruder.
  • Quick Filament Release: A lever mechanism allows for easy and quick release of the filament, simplifying material changes.
  • Optimized Hotend Assembly: The manual provides detailed steps for assembling the hotend, including inserting the heater cartridge, installing the heat break, placing the thermistor, and wrapping the heater block with PTFE tape for thermal insulation.
  • Nozzle Hot Tightening: It is recommended to hot tighten the nozzle again after the heater block has reached printing temperature to ensure a secure and leak-free seal.
  • Fan Installation Guidance: The manual suggests installing the fan towards the left, with a note to pay attention to the gear and air vent if installed towards the right.
  • Mounting Compatibility: The extruder features 10 M3 screw holes for fixing and is compatible with mounting plates with a thickness of 3-5mm using the provided M3x8 screws.

Maintenance Features:

  • Durable Components:
    • The idler arm is made of 7075 T6 aluminum, treated with a special blend of high-performance anti-wear MoS2 grease. This improves the quick release lever's haptics and enhances wear resistance, contributing to the longevity of the mechanism.
    • The filament drive gear is crafted from tool steel plated with nano-coating. This treatment significantly improves hardness, wear resistance, and corrosion resistance, extending its lifespan, especially when printing abrasive materials.
  • Pre-applied Thermal Grease: High-performance thermal grease is pre-applied to the heat break to enhance thermal conductivity between the heat break and heatsink, improving cooling performance and overall reliability.
  • Modular Design: The components are designed for relatively straightforward assembly and disassembly, facilitating maintenance and part replacement.
  • PTFE Tape for Insulation: The use of PTFE tape for wrapping the heater block ensures optimal thermal insulation, which can be easily replaced during maintenance.

BIQU H2 V2S Lite Specifications

General IconGeneral
BrandBIQU
ModelH2 V2S Lite
Category3D Printers
LanguageEnglish

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