List of Parts & Design Files

Below are the detailed component lists required to print, source, and assemble the Training Village system.

The estimated total cost of materials ranges between €1,200 and €1,500 (or equivalent currency). This estimate varies depending on the local cost of 3D printing and custom laser-cutting or CNC machining services for the acrylic components.

Raspberry Pi Components

Corridor Components

  • 1 x Dedicated 5V, 3A Power Supply (for the Main HAT)

  • 1 x 1 kg Load Cell (Note: The custom Corridor Board integrates the HX711 amplifier onboard; only the physical load cell sensor is needed)

  • 2 x Standard-size servo motor (≥5 kg/cm torque, 5V)

  • 1 x SparkFun RFID Reader ID-20LA (125 kHz)

  • 1 x 5-pin JST-PH connector

  • 1 x Set of RFID Glass Transponder Capsules (125 kHz) for animal identification

  • 1 x Complete set of 3D-printed structural components

  • 1 x 3mm Matte White Acrylic Base (laser-cut or CNC-machined)

  • 2 x 3mm Matte White Acrylic Doors (laser-cut or CNC-machined)

  • 1 x 4mm Transparent Acrylic Lid (laser-cut or CNC-machined)

  • 4 x 4mm Transparent Acrylic Lid Stops (laser-cut or CNC-machined)

  • 20 x M4 screws, 12 mm length

  • 2 x M5 screws, 25 mm length

Small Setup Configuration (2 Home Cages)

  • 2 x Standard Home Cages (modified with custom cutouts to host the connecting tubes)

  • 2 x Transparent Acrylic Connection Tubes (30 mm internal diameter, 34 mm external diameter, 16 cm length)

  • 1 x Set of 20x20 mm Aluminum V-Slot Profiles (Slot 6 mm), cut to the following lengths:

    • 2 x 55 cm length

    • 4 x 45 cm length

    • 6 x 34 cm length

  • 15 x corner couplings for the aluminum profiles

Large Setup Configuration (4 Home Cages / EcoHab Compatible)

  • 4 x Standard Home Cages (modified with custom cutouts to host the connecting tubes)

  • 3 x Transparent Acrylic Connection Tubes (30 mm internal diameter, 34 mm external diameter, 26 cm length)

  • 1 x Transparent Acrylic Connection Tube (30 mm internal diameter, 34 mm external diameter, 10 cm length)

  • 1 x Set of 20x20 mm Aluminum V-Slot Profiles (Slot 6 mm), cut to the following lengths:

    • 2 x 55 cm length

    • 4 x 65 cm length

    • 6 x 38 cm length

  • 15 x corner couplings for the aluminum profiles

Custom PCB Boards & Electronics

  • 1 x Custom Main HAT Board

  • 1 x Custom Corridor Board

  • 1 x Custom Box Board

  • 2 x Standard Ethernet Cables (used to interface the Corridor and Box satellite boards to the Main HAT)

  • 2 x 5x20 mm Fuses (250V, 5A)

  • 1 x Extra-tall GPIO Header Spacer/Extension (for vertical clearance between the Pi and the Main HAT)

Illumination & Accessories

  • 4 x OPB100-EZ IR Emitter

  • 1 x 5V White LED Strip

  • 1 x Home Cage Water Bottle

  • 1 x Automated Food Dispenser Module

Open-Source Design Files

For a comprehensive, step-by-step walkthrough on assembling these components, please refer to the System Assembly Guide.