Sunflower Seed Cracker

An exceptionally useful tool for cracking sunflower seeds. Initially, I created this cracking tool for my child who loved eating sunflower seeds but couldn't crack them open himself. After three iterations, it now requires minimal supports. You can choose different entry points based on the size of the seeds. I've personally tested it with Lao Jie Kou and Cha Cha brands, achieving a 90% success rate.

--I recommend using PETG filament and increasing the infill density; I used 35%.

--The accessories use four 608zz bearings commonly found in children's cars, resulting in a smoother rotation; for the upper cover screws, use M2.5, 8-10mm self-tapping screws will work.