Introducing Hack the Trash Core Zero
- Bruno Motta Rego
- Jan 6
- 2 min read
Updated: Apr 5
Empowering people to turn waste into value is our mission.
We believe everyone has the ability to make a difference, and our approach removes barriers, making sustainable practices accessible, practical, and rewarding.
Organic waste represents 30% to 50% of people waste average, so Worm Composting (Vermicomposting) is an eco-friendly way to start to reduce your footprint and impact, and Hack The Trash Core Zero is free and gives you the freedom to customize its size, shape, and features.
Key Requirements
Low-cost (2.2 lb / 1 Kg 3D Printer Filament);
Sustainable;
Odorless/Scentless;
Non-toxic for worms (food-safe if possible);
Moisture resistant (avoid warping or degrading quickly);
UV and temperature stable (outdoor bins need weather resistance);
Strong & impact resistant (worms won’t break it, but handling and stacking);
Easy to clean;
Easy to open;
Easy to handle.
Design & Material Research
Design Definitions for Hack The Trash Core Zero
Drainage: Small holes at the bottom prevent anaerobic zones.
Ventilation: Include slots or mesh for airflow while keeping worms in.
Modular Design: Print in stackable layers for easy compost harvesting.
Wall Thickness: Go for minimal to resist cracking, consider 2,2 lb filament per composter.
Color Choice: Darker colors can reduce reflection, worms doesn't like luminosity.
Material Definitions for Hack The Trash Core Zero
Filament | Moisture Resistance | UV Resistance | Ease of Printing | Durability in Compost Environment | Eco-Friendliness | Typical Use Case |
ABS | Medium | Low | Medium (needs enclosure) | 3–4 years | Low | Durable if indoors or protected |
ASA | High | High | Medium (needs enclosure) | 5+ years | Low | Outdoor heavy-duty bins |
PETG | High | Medium | Easy | 5+ years | Medium | Best all-rounder for long-term bins |
Recycled PETG | High | Medium | Easy | 5+ years | High | Sustainable long-term bins |
PLA | Low | Low | Very Easy | 1–2 years | Medium | Quick, sealed for moisture protection |
Recycled PLA | Low (needs coating) | Low | Very Easy | 1–2 years | High | Sustainable quick builds |
Material Use Tests (Filament)
Durability without Fuss → PETG.
Sustainability → Recycled PETG from a trusted brand.
No sealing, great moisture resistance, easy to print.
Ease and Speed → PLA+ but coat with food-safe polyurethane or epoxy to extend lifespan.
Longevity Outdoors → ASA in an enclosed printer.
PETG Wins for Most Makers
Looking for the best balance between durability, moisture resistance, and printability, PETG stands out as the ideal choice. It resists the constant dampness of a worm bin, is more UV-resistant than PLA, and requires no sealing or protective coating.
PROs | CONs |
Resistant to moisture and chemicals. | Slightly less rigid than PLA. |
Does not degrade easily with compost moisture. | Can be stringy when printing if settings aren’t tuned. |
Minimal warping compared to ABS. | |
Easy to print on most printers. | |
Many PETG filaments are food-contact safe (check certifications). |
Final Word
Choosing the right filament for your Worm Composting (Vermicomposting) bin is about matching material properties to environmental demands. PETG is the all-rounder winner, but if you prioritize sustainability, Recycled PETG is a great alternative.
Your worms will thank you—not in words, but with rich, nutrient-packed compost.
Join Us, Download and Start Now!
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