[Upgraded version of BIQU H2]BIQU H2 V2.0 replaces the upgraded version of stainless steel gears on the basis of V1.0, which is durable, high-precision, and effectively solves the problem of gear jamming; adopts bimetallic pipes (copper alloy + GRADE5 titanium alloy), high temperature resistance. [Large extrusion force, not easy to block]Transmission through multiple gears: a torque transmission ratio of 7:1 is reached. h2 extruder Super vigorously 770mNm. The smoothness of the inner wall of the throat and the nozzle reaches the level of Ra0.4, which can effectively prevent clogging. [upgrade short-range extruder nozzles ]General extruder nozzles are heavier, especially dual-nozzle printers, which have large inertia during movement, and it is relatively difficult to accelerate and decelerate. So use a lower printing speed to ensure accuracy.But our biqu h2 V2.0 is lightweight, which further reduces the influence of the weight of the short-range extruder on the structure. [Double gear extruder]Consumables are extruded quickly and the extrusion distance is short. While retaining the advantages of the short-path extruder, the feed volume control is more accurate than the feed extrusion, and the discharge is more precise; the torque requirement of the extrusion stepping motor is relatively low. [More efficient heat dissipation] BIQU H2 extruder V2.0,The use of streamlined heat dissipation structure to achieve super effective heat dissipation. Extrusion: H2 V2.0 dual gear extrusion Maximum print temperature: 270 Celsius (Can be upgraded to 500 Celsius) Direct drive extruder Weight: 211g (including heat block ) Maximum extrusion: 7.5kg (depending on Filament) extruder 3d printer Extrusion (based on existing): 600mm3/min (depending on Filament ) Number of pulses:Step motor drive at 932steps/mm at 16 segments (further correction required) Motor recommended current: 800mA Filament diameter and tolerance: 1.750.05mm XYZ size (including fan): 76.8 x 37.9 x 75mm Colour:Photo Color Material:ABS Package Contents: 1 * Dual Gear Extruder Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.