Dual Charging Dock for lil SOLID 2.0 / 3.0

This is a 3D-printable charging dock designed for simultaneous charging of two lil SOLID 2.0 / 3.0 devices.

The dock provides a clean desktop solution with integrated USB Type-C connectors, eliminating loose cables and keeping your devices neatly organized while charging.

The model is designed to accommodate separate USB-C connectors installed inside the body.

Features

• Charges 2 devices at the same time
• Compact desktop form factor
• Hidden internal wiring
• Secure USB-C connector mounting
• Compatible with lil SOLID 2.0 and 3.0
• Simple electrical assembly (5V only)

Additional Parts Required

You will need 3 USB Type-C connectors for assembly:

1× USB-C female connector (power input):
https://www.aliexpress.com/item/3256804231611255.html

2× USB-C male connectors (device outputs):
https://aliexpress.com/item/1005003827334713.html

Wiring Overview

• One USB-C connector is used as the power input (5V from wall adapter).
• Two USB-C connectors are used as charging outputs.
• Connect VBUS to VBUS and GND to GND in parallel.
• Use a 5V power supply rated at minimum 2A (3A recommended for stable dual charging).

No data lines are required — power only.

Assembly Instructions

1. Insert USB-C connectors into the designed mounting slots.
2. Connect input 5V and GND to both output connectors in parallel.
3. Secure connectors using epoxy, CA glue, or hot glue.
4. Connect a 5V power supply.
5. Insert your devices and charge.

Important Notes

• Double-check polarity before powering on.
• Do not use power supplies above 5V.
• Avoid overheating USB-C connectors during soldering.
• Use at your own responsibility.