Ống Thông Gió Cửa 100x200mm

Vents are expensive so i thought maybe i could print it myself. I came up with this model after printing few variants and fixing mistakes. You can put it on doors, printer enclosures, dehydrators, pretty much anywhere where you need airflow.

Face is 2mm in height and 10mm offset, rear side is 15mm. Doors should be at least 30mm thick. Dimensions are 100x200mm, cutout should be 90x180mm. Ender 3 can print about 220mm, but i wanted to leave some space in case i have to use raft/brim.  I printed it without raft/brim and it ended up fine, I've printed 6 of them and only one had small issue with one corner.