BIQU - H2 V2S - Fan Ducts

Printhead & Part-Cooler
May fit other Makes / Models (H2 / Lite)
Revision 1
By: David Orlo

Part Details

• Dual 5020 Blower Fans:
• Single shared duct that splits into Two Independent Printhead Ducts
• Expected Improvements
• Overall Print Quality
• Less curling / warping
• Ability to print faster
• Print capabilities (overhangs, bridges, less supports)

Show Appreciation & Support

Want to support my work or get exclusive 3D content?

• Individual Items for as low as $3 (Patreon)
• Monthly Memberships with Benefits $3-$7 (Printables, but Patreon Membership in the works)
• $5 Monthly Membership includes ALL Paid Content
• Exclusive Content, 3D Models, Design Files & More
• In-Depth Tutorial Videos covering Autodesk Tinkercad, MeshMixer & Microsoft 3D Builder (Editing)

Check out my Printables & Patreon shops!

• Your support helps me expand my projects, and I'll keep sharing new designs and tutorials with the community!
  • Support me on Printables
  • Support me on Patreon

Print Recommendations

• Layer Height: .2
• Infill: 90% +
• Material: PETG / ABS / ASA / PLA +
• Supports: Take the time to manually place supports to avoid any supports within the ductwork.
• Brim: Highly recommended
• Expectations: If your support settings are dialed in, it should work fine, but if you're using the stock setup, I suggest printing this twice.
  • The second print with the new duct will likely turn out much nicer, which is the whole point anyway, right.

Setup Recommendations

• The small radial fan (BIQU Supplied) should run at 100% anytime voltage is applied to the hot end or anytime the printer is powered on—unless you enjoy clearing jams, of course.
• recommend keeping the blower fans synchronized and controlling them together.
  Blower Fan Series Wiring Instructions
• For a 12V printer, you could wire two 5V fans in series, but some fans may not appreciate the extra voltage at full power. A 24V printer could run two 12V fans in series.

Blower Fan Series Wiring Instructions
For a 12V printer, you could wire two 5V fans in series, but some fans may not appreciate the extra voltage at full power. A 24V printer could run two 12V fans in series.

• Series Wiring:
  • Connect positive from Fan A to the printer mainboard.
  • Connect negative from Fan B to the printer mainboard.
  • Connect the remaining Fan A negative and Fan B positive fan wires together.