Sovol SV04 Dual Mode

The Sovol SV04 Dual Mode is an FDM 3D printer from Sovol with a 300 x 300 x 400 mm build volume.

Specifications

Based on official manufacturer documentation and detailed engineering analysis of IDEX kinematics for multi-material printing, here are the verified technical specifications for the Sovol SV04 operating in Dual Mode (Dual Color / Multi-Material Mode):

• Hotend: The printer utilizes Independent Dual Extruder (IDEX) technology featuring two fully independent toolheads moving on the same X-axis rail. Each toolhead houses a direct-drive "Titan" style extruder clone with a 3:1 gear reduction ratio, providing high feeding torque and precise filament control. The hotends are all-metal, utilizing titanium alloy thermal breaks to allow operating temperatures up to 300°C.

Calibration

Successful multi-material printing in Dual Mode depends entirely on the precise calibration of the spatial offsets (XY offset and Z-offset) between the two nozzles. If the nozzles are misaligned, the materials will fail to bond, creating structural gaps or color overlap. Follow this eight-step engineering cookbook:

• Bed Cleaning and Primary Nozzle (`T0`) Z-Offset Calibration:
• Procedure: Clean the PC build plate with IPA. Heat the bed to 60°C and `T0` (left nozzle) to 200°C.

Common defects

• Hardware defects and mechanical weaknesses
• Idle Nozzle Oozing and Drips: The most common IDEX issue. Filament inside the parked hotend remains under pressure and slowly oozes out. When the nozzle resumes printing, this drip can fall onto the model as a blob or color spot. Adjusting standby temperatures and maintaining the wipe brushes is required to prevent this.

What it is used for

Best use-cases:

• Water-Soluble Supports (PLA + PVA): Ideal for printing highly complex geometries, mechanical assemblies, and internal hollow structures where breakaway supports cannot be reached.
• Multi-Color Branding: Permits clean dual-color printing (e.g., logos, text, signs) without color bleed.