> For the complete documentation index, see [llms.txt](https://fletcher.gitbook.io/work/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fletcher.gitbook.io/work/rover/stair-climbing-rov-platform.md).

# Stair Climbing ROV Platform

The Stair Climbing ROV is a versatile, track-based robotic system designed to enhance self-sufficiency and productivity in home and industrial settings. Its a bot that does your chores for you.

#### **Project Overview**

<div><figure><img src="https://3445589184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFQxSvKEzbSApyyrPwEqW%2Fuploads%2FNnTCzjcQCoP3wFOAXW8b%2Fpenup_20241122_085536.jpg?alt=media&amp;token=93c0c5ea-1888-49e7-bb80-d2d3119b0079" alt=""><figcaption></figcaption></figure> <figure><img src="https://3445589184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFQxSvKEzbSApyyrPwEqW%2Fuploads%2F5sJw3Mer1fw6dN6FVHwG%2Fpenup_20241231_152746.jpg?alt=media&amp;token=06a76d6d-3ef7-4e6e-90dc-42272964bf68" alt=""><figcaption></figcaption></figure></div>

The rover bot is envisioned as a modular, multi-purpose robot aimed at automating labor-intensive tasks, reducing human effort, and leveraging advancements in robotics for practical applications. It combines traditional productivity tools with modern technology, such as FPV (First-Person View) control, multiple attachments, and a hybrid power system, to serve purposes like snow removal, material transport, lawn mowing, and future factory automation.

Inspired by back breaking, time sucking, Canadian snow removal. I can't just use a snowblower because it won't have a cool controller or let me sit inside and drink coffee while I clear the driveway and mow my lawn. It has to be fun. I want us to all have our own Jarvis/R2D2/C3PO type of thing and I honestly believe that is realistic for less than $2000. It will need to haul at least a ton bc I will get so fat once I don't have to do anything, and I want to ride it.

***

#### **General Details**

**Core Design Features**

1. **Mobility**:
   * Track-based with skid-steer functionality for all-terrain capability and tight turns.
   * Transmission system enables switching between high-torque (low-speed) and higher-speed modes.
2. **Power System**:
   * Hybrid setup with four 12V car/truck batteries and a 3-5 kW gas generator.
   * Operates in battery-only mode for light tasks; generator activates at 30-50% battery level or for high-power needs.
   * Smart charging optimizes costs using time-of-use pricing.
3. **Modularity**:
   * Multiple mounting points for attachments like plows, ride-on platforms, and lawn mowers.
   * Quick-swap docking system for versatility.
4. **Control**:
   * FPV with multiple cameras and a 10 km-range DJI FPV kit for remote operation.
   * GPS automation planned for preset routes (e.g., garbage day or mowing the lawn).
5. **Sensors**:
   * Proximity, obstacle detection, and environmental sensors for safety and adaptability.

**Applications**

* **Home Use**: Snow removal, garbage transport, yard work.
* **Industrial Use**: Material handling in factories or warehouses.
* **Agriculture**: Plowing, planting, and harvest transport.

**Development Roadmap**

1. **Prototype**: Basic tracked chassis, remote control, and manual attachments.
2. **Enhanced Functionality**: Transmission, lights, FPV improvements, and battery optimization.
3. **Automation**: GPS navigation, obstacle avoidance, and smart home integration.
4. **Scalability**: Specialized attachments (e.g., snowblower) and environment-specific refinements.

**Bill of Materials (BOM) Highlights**

* **Arm**: 2x NEMA 34, NEMA 23 (long/short), NEMA 17 motors, linear actuator, bearings, and custom arms.
* **Base**: Mini skid steer tracks, 2x drive motors, gearboxes, 4x batteries, gas generator, wheels, Raspberry Pi 5, DJI FPV kit.
* **PTO (Power Take-Off)**: Options include a 4-5 kW DC motor or generator shaft-driven system for attachments like a $10 lawn mower blade.

**Power and Runtime**

* A 4 kW motor runs approximately 1 hour on four 100 Ah batteries under full load, extendable with partial loads or generator support.

**Key Technologies**

* **Motors**: DC 500W x 2 - Ideally Brushless
* **Control**: Raspberry Pi for automation and FPV integration.
* **Materials**: Lightweight metals or composites for durability.

***

#### **Project Goals**

The rover bot aims to empower individuals with affordable, efficient automation tools, drawing from ancestral productivity methods while integrating modern robotics. It prioritizes modularity, cost-effectiveness, and practical utility, with potential for scalability into larger production systems.

This project reflects a scientific, evidence-based approach, focusing on quantifiable performance metrics (e.g., power efficiency, runtime) and logical design choices to maximize output while minimizing costs and labor.