Handheld Shredder (Fidget Toy, Stress Relief)

This is a meticulously crafted crusher model, perfect for handheld manipulation, offering both a satisfying tactile experience and the engaging pleasure of assembly.

Features:

• Requires no hardware; entirely 3D printed for straightforward assembly.
• Prints rapidly, needs no supports, and allows for creative color combinations.
• Provides a satisfying tactile experience, offering stress relief and boasting exceptional durability, mirroring the mechanics of a genuine crusher.
• Showcases a minimalist aesthetic, employing threaded fasteners and interference fits for easy assembly and disassembly.
• Print configurations include scaled-down and full-size versions (scaled-down: 100*70*35mm, standard: 125*88*45mm), with the smaller version ideal for handheld use.

Assembly Instructions:

• The twelve blades comprise two types, distinguishable by the presence or absence of a small circle on their surface.
• Install the blades according to the pin insertion direction and blade rotation direction shown in the diagram (using the right-hand knob). For left-handed use, insert the pin from the opposite side.
• During installation, alternate the two blade types (based on the presence or absence of the small circle). For even teeth, use only one type on one side.
• Secure the threaded cap onto the short shaft and the knob onto the long shaft for operation.
• Should the knob prove loose due to material issues, try rotating it during insertion (some differences in tightness exist between contact surfaces). If this fails, use a shim; for a permanent fix, use adhesive without disassembly.

*In August 2024, I released a highly simplified crusher model, employing a crank for rotation. Initially, its purpose was merely to replicate the shape, yet I still occasionally find myself playing with it almost a year later; its stress-relieving qualities remain captivating, even if it only manages to emboss a single sheet of paper.

My frequent workplace exposure to crushers and the fascination I derive from observing colleagues assembling them—the simplicity and ingenuity of their mechanical structures—inspired me to create this stress-relieving toy, meticulously replicating the individual components of a real crusher, although it currently only embosses a single sheet of paper; metallization would transform it into a fully functional crusher.

After using over 1kg of filament to print numerous test models and optimize the two sizes, the final result is truly satisfying. I also intend to incorporate a reduction gear from my maker's kit to automate it (this will be implemented later, pending risk assessment and practicality considerations to avoid potential child injury). For now, enjoy the manual crusher—I hope it adds a touch of fun to your life and that you find it enjoyable!