📦 StackO Rail

ESP32-powered macro rail with wireless API control for focus stacking photography.

📖 Overview

StackO Rail is a custom-built motorized macro photography rail powered by an ESP32 microcontroller.
It hosts a local API accessible via WiFi, enabling remote control through the companion app StackO Remote.
Designed for precision and flexibility in focus stacking workflows, it features customizable travel distances and step sizes.

The hardware design includes a custom PCB created with EasyEDA and a 3D-printed case for the controller housing.

Prototype

Prototype Image

🛠️ Technologies Used

  • Firmware: C++ (PlatformIO)
  • Microcontroller: ESP32
  • Networking: WiFi with mDNS service discovery
  • Hardware: Custom PCB (designed in EasyEDA) and 3D-printed enclosure

🚀 Features

  • ✨ Wireless API to control macro rail movement
  • ✨ Support for both Distance and Point-to-Point operation modes
  • ✨ Integration with StackO Remote app
  • ✨ mDNS for easy device discovery on the network
  • ✨ Save and load movement settings
  • ✨ Precision stepper motor control

🖼️ Screenshots

DescriptionImage
PCB LayoutPCB Layout
3D Printed Case3D Printed Case
Controller AssemblyController Assembly

🤝 Contributing

Currently a personal hardware project.

📄 License

Proprietary Hardware and Firmware — All rights reserved.