Lỗ Thông Gió Isopod (Nhiều Kích Cỡ Hơn)

Original File fits 38mm/1.5" holes. Made four more sizes: 22mm/7.8", 25mm/1", 32mm/1.25", 51mm/2".

Per original file instructions: I recommend either printing separately or using different print settings for each model

On the bolt 30 to 40 infil (rectilinear)remove top bottom layers 17(I think) perimeters 

Nut print normally 

Recommend .16 or better but .2 does work if your printer isn't a turd like my old one.