I am printing it right now. What I like about this design is author states that Gridfinity is not a set of ready STLs to print, but a set of standardized rules - which made me look at the whole system from new perspective.

I am using kbin.social, clicking on the title again should open or redirect you to the printables page I am talking about!

So which one this time? Armpits?

Used Sync for Reddit for few years. I paid for pro version after just few hours of using (super simple setup etc). Now I am enjoying kbin via mozilla and it is great.