PZZL Stackable Swatch

prusaprinters

Clicks together in three dimensions, and tests stringing, thin portions, curved and slanted slopes, over hangs, puzzle piece fits, and minimum printable gap. It tests a ton of stuff, testing the mechanical and visual aspects of filament. Also has ample surfaces for writing details, or sliding in a piece of 22x28mm paper using the build in “dovetail” type holding on the front side. Even without paper, writing will be protected from rubbing off, as it is indented down into the surface.ANNND it has a key ring for when these swatches aren't with any of their buddies. But bring multiple of them together, and they click together in all three dimensions!!! Perfect for easy, durable transportation and storage of these stackable swatches!Edit: Turns out these are great to fidget with too, they make a nice click sound when they go together vertically