Modular 3D Printer Exhaust Vent System

This is a complete modular exhaust ventilation system designed for 3D printer enclosures.The main ducts are based on 54×110 mm flat ducting and can be combined with multiple adapters.The 100 mm outlets are compatible with flexible ducting (Ø100 mm). I used a 100 mm grow box fan I already had on hand (shown in the photos), but any strong 100 mm inline fan will work.My fan was modified with a 1-0-2 rocker switch to allow two speed levels. Ducts and sealing:The ducts are standard 54×110 mm flat ducts from Marley (DIY store).They fit into the adapters with minimal play. I fixed them in place with double-sided tape, which is enough to seal the system properly under negative pressure. Required hardware (not included):100 mm flexible ducting (e.g. standard aluminum flex hose)100 mm hose clampsWall plugs (Ø6 mm) and screws (3.5 × 35 mm) for wall mounting6×2 mm magnets (used in the printer flange for quick attachment)Modules included in this set:T-Pipe Connector90° Pipe ConnectorStraight Connec