Printed with new A1 Mini with default settings using Bambu Basic Gold PLA. A little snug but the nut goes in (all the way) in one direction with a little effort. However, in the other direction, it only goes in about the thickness of 1 nut (extremely snug). Can probably force it in more, but I ran out of strength because it's a little hard to grip a relatively small print. Not sure whether it's an issue with the model or the printer settings, but good to note for future. *Edited to elaborate and add image

my autistic son loves this

great fidget toy :)