The Knock ‘n’ Brew – A Quiet, Eco-Friendly Coffee Knock Box

Silence the morning chaos with The Knock ‘n’ Brew, a 3D-printed coffee knock box designed for smooth espresso workflow without waking the house. Built with eco-conscious materials (PLA is, anyway), it helps you repurpose coffee grounds for plant fertilizer while keeping your brewing space clean and efficient.

Start your day with less mess and more mindfulness. The Knock ‘n’ Brew is a modern, compact knock box designed to make disposing of espresso pucks quick and hassle-free. Whether you choose all PLA, all PETG, or a hybrid build, this design is optimized for durability and function.

For those who love a quieter coffee ritual, the TPU knock bar version helps dampen noise, preventing unwanted morning wake-up calls. And with n smooth, ergonomic shape, it’s easy to clean and fits seamlessly into any coffee setup.
Plus, your spent coffee grounds don’t have to go to waste—they make an excellent natural fertilizer for houseplants, helping you brew with sustainability in mind. The bar is friction-fit, meaning no screws, glue, or extra parts—just a simple, secure design that stays in place during use but can be removed for easy cleaning.

To take it up a notch, I’ve added self-stick clear rubber feet to the bottom. These keep the knock box securely in place, prevent sliding, and further dampen noise—because every little detail counts.

Printing Profiles Available:

✅ All PLA - Great for casual use, rigid and lightweight
✅ PLA + TPU bar – Reduces knocking noise, gentler on portafilters
✅ All PETG – More impact-resistant and heat-resistant
✅ PETG + TPU bar – The ultimate combo for durability and quiet operation

Why You’ll Love It:

✔ Quieter mornings – TPU bar softens the impact, keeping noise to a minimum
✔ Eco-conscious design – Compost or reuse spent coffee grounds as fertilizer
✔ Sleek & functional – Designed to fit any coffee setup with a smooth, easy-to-clean form
✔ Multiple material options – Print in PLA for everyday use or PETG for extra durability
✔ Easy disposal – Keeps your workflow clean and efficient

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