I designed this because I Use the igloo cooler that is pictured in the post as a sous-vide container. The problem that I was having was that I always needed the top to be left open in order to use it. So I designed this as a cutout for the top. Simply print the item and cut just on the corner. I Designed some tabs that insert into the cavity that you cut so make sure you don't cut out that area. they are designed to sit inside and allow for a better seal. My circulator is an Instant pot with a diameter of 50mm and it is a snug fit

Prusa

I3 MK3S

Doesn't Matter

Yes

10%