Bambu Flow Blocker — Nozzle Blocker for H2D Reduce Standby Ooze • Cleaner Dual-Nozzle Prints • Faster Tool Changes The Bambu Flow Blocker is designed specifically for the H2D dual-nozzle platform to suppress ooze from the inactive nozzle during printing. By mechanically shielding the idle nozzle tip, it helps prevent drips, color bleed, and stringing—resulting in cleaner seams, sharper transitions, and more reliable long prints. Why use the H2D Flow Blocker • Reduces standby ooze from the inactive nozzle• Cleaner color and material transitions during tool changes• Fewer strings, zits, and surface artifacts• Helps maintain sharp edges and cleaner walls• Simple drop-in installation—no firmware or slicer changes required Ideal for • Dual-nozzle H2D prints with frequent tool changes• Multi-color parts and mixed-material workflows• Soluble supports and interface-critical components• Long prints where small leaks compound over time What’s included • Flow Blocker / Nozzle Blocker for Bambu H2D• Basic installation and fit guidance Installation overview • Power off the printer and allow hotends to fully cool• Install the blocker in the toolhead so it aligns with the inactive nozzle at standby• Verify clearance and Z-height• Run a short dual-nozzle test print to confirm clean hand-offs Use & maintenance tips • Keep nozzle tips clean—burnt residue can reduce effectiveness• If minor carryover remains, reduce purge volume or increase standby retract slightly• Inspect periodically; replace if worn, contaminated, or heat-deformed Compatibility • Printer: Bambu Lab H2D (dual-nozzle only)• ❌ Not compatible with P1, X1, P2 series, or single-nozzle platforms Local advantages (Convoy-Westcan, Winnipeg) • Same-day or next-business-day dispatch when in stock (after processing)• Free local courier on eligible filament orders over $50• In-store pickup with real-world advice from active users Policy snapshot Accessories and consumables are final sale. Any approved return on other items must be brand new and unopened; restocking fees and non-refundable shipping may apply.