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Next Step Small 50 – Ant Nest Formicarium

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Next Step Small 50 – The Ultimate Modular Transition Nest

Designed by a Keeper, for Keepers:)

Most ant colonies start their journey in a simple test tube. But what happens when they outgrow it? Many keepers struggle to find a nest that isn't too large for a young colony.

Having been an ant keeper since 2014, I’ve spent over a decade observing how these incredible insects interact with their environment. I designed the Next Step Small 50 to be the perfect bridge between a starter setup and a permanent large-scale formicarium.

Why Choose the Next Step Small 50?

Natural Living Space: The interior features a system of precisely designed chambers and tunnels that mimic natural galleries.

Engineered for Durability: This isn't just a "click-together" toy. It uses M2 brass threaded inserts for a secure, long-lasting assembly that won't strip over time.

Superior Hydration: Uses a reliable test-tube-and-cotton system to provide a consistent humidity gradient, which is vital for brood development.

Fully Modular: Equipped with screw-in ports (10mm and 12mm), allowing you to expand your setup as your colony continues to grow

Technical Specifications & Print Settings

For the best experience, I recommend using the provided print profiles optimized for Bambu Lab printers.

Materials Used: * Body & Frame: PLA Marble (for a natural stone look).

Tunnels: PLA Wood (its porous texture is ideal for ant grip and brood placement).

Layer Heights:

Main Body: 0.2mm
Screw-in Ports & Plugs: 0.08mm

Required Hardware (Non-printed):

4x M2x6 Countersunk Screws.
4x M2 Brass Threaded Inserts.
50x50x2mm Glass or Acrylic Pane.
14.6mm Diameter Test Tube.

Assembly Instructions

A detailed PDF manual is included with the project, covering everything from heat-setting the brass inserts to setting up the hydration system.

Happy Ant Keeping! If you enjoy this design, please leave a like and share your makes. Your feedback helps me create better habitats for our tiny friends!