I Designed this to fit under my garage door so i can exhaust fumes from my K40 laser engraver.

i used a 1x4 wood to match the height so the garage door can sit flush to prevent air gaps under the door

i recommend you print this with PETG. you just need to glue it together.

a standard 4 inch or 100mm exhaust hose will fit onto the hose connection.

I HIGHLY RECOMMEND YOU ADJUST YOUR GARAGE DOOR HEIGHT SETTING.