Concrete Knock Box Formwork | DIY Set for Home Baristas

Concrete Knock Box Formwork | DIY Set for Home Baristas

Create your own durable and stylish knock box with this 3D-printable formwork. Designed for PLA or PETG, this formwork allows you to cast a professional-grade knock box from concrete, perfect for any home espresso setup.

How It Works:

1. Print the Formwork – Use organic supports to minimize filament waste.

2. Prepare the Mold – Optionally, apply silicone spray or dip the form in natural oil before filling to ease removal, though this is not required.

3. Pour & Set – Fill with concrete and let it cure for 2-5 days. To reduce air bubbles and achieve a smooth finish, tap the mold with a stick or use a sanding tool with vibration to help the concrete settle evenly.

4. Remove the Formwork – Destroy the printed mold to reveal your solid concrete knock box.

5. Assemble – Insert a 20mm wooden rod as the knocking surface.

Why Choose This DIY Knock Box?

• Minimalist and Modern Design – Elevates your coffee station with a sleek concrete knock box.

• Cost-Effective and Sustainable – No need for expensive knock boxes; print and pour your own.

• Customizable – Experiment with different concrete mixes for a unique look.

Print, pour, knock, and enjoy!