Flap Vent

thingiverse

Adrian Bowyer created a customizable flap vent for a 300mm fan at RepRapPro Ltd's laboratory. As he couldn't find any vents larger than 150mm, he designed one using OpenSCAD and printed it on a RepRapPro Mono Mendel. The design is parametric, allowing users to set the fan diameter and flap number according to their needs. The OpenSCAD program splits the frame into quarters and flaps in half for easy large-scale printing. After a year of exposure to weather conditions, the vent remained in excellent condition. To assemble, print the parts and glue flap halves together using superglue. Place the flat faces on a polythene bag with a thin film of glue, clamp the webs gently together, and align the hole at the top with an M3 screw and nut. Insert 3mm metal rods through the flaps for stability and secure them with cyanoacrylate if necessary. Assemble the frame halves using 3mm screws and attach the completed vent to the wall where the fan's large hole is located.