The ONLY Safe Scrap Cat Toy Dual-Lock Ball-in-Ball

The "Infinity Scraps" Cat Toy (Ball-in-Ball Design) 

Turn your 3D printing waste into a secure, rattle-and-roll toy for your cat! This model uses a clever dual-pause system that lets you upcycle filament scraps and permanently lock them inside a protective, durable lattice shell.

⚠️ The "Safety First" Difference

We’ve all seen standard "scraps-in-a-cage" style toys or loose DIY ideas where cats can accidentally pull out individual purge lines or small bits of plastic. If a cat swallows sharp filament scraps, it can lead to serious, life-threatening digestive emergencies. This design eliminates that risk entirely. Because the inner ball is physically "printed into" the large lattice shell, it is impossible for the cat to access the scraps inside. You get the fun of a rattling, colorful toy without any of the danger.

🛠️ How It Works: The Dual-Pause Process

1. First Pause (The Inner Ball): The printer will pause while forming the small inner ball. This is your chance to fill it with your filament "poop," purge lines, and scraps. Once filled, resume the print to seal the scraps inside the small ball.
2. Second Pause (The Big Ball): The printer will pause when the large outer ball is partially finished. At this point, simply place your finished small ball inside the large one.
3. The Result: When you resume, the printer completes the top of the large lattice ball, permanently trapping the colorful, scrap-filled ball inside!

🐱 Why You’ll Love It

• 100% Secure: No loose pieces, no choking hazards, and no way for your cat to reach the inner scraps.
• Eco-Friendly: A perfect, functional use for all that "poop" and scrap material that usually ends up in the trash.
• Built-in Rattle: The trapped scraps create a natural, engaging sound as the toy rolls across the floor.

🖨️ Printing Tips

• Watch Your Slicer: Ensure your two pause heights are set correctly. The first is to fill the inner ball, and the second is for the final assembly.
• Material: PLA works great for a crisp, clean finish.

Check out some of my other great models! https://makerworld.com/en/models/2571497-voronoi-skull-that-holds-3d-printed-poop#profileId-2834768