17 % ବନ୍ଦ |
Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit
The Pololu Romi Chassis Kit is a complete robotic platform designed for educational robotics, autonomous navigation projects, and embedded systems development. Roboticists, engineering students, and automation professionals use this modular chassis to build mobile robots with precise motor control and expandable sensor integration capabilities. This kit solves the challenge of rapid robot prototyping by providing a pre-engineered mechanical foundation with optimized weight distribution, motor mounting, and power management infrastructure.
Product Overview
The Pololu Romi Chassis Kit represents a sophisticated approach to mobile robot construction, featuring a compact two-wheel differential drive system with integrated caster wheel support for balanced stability. The chassis utilizes high-quality polycarbonate construction combined with precision-molded motor mounts that ensure accurate wheel alignment and minimal drivetrain backlash. The modular design accommodates multiple Pololu motor variants (identified by model numbers 3500, 3509, 3501, 3502, 3506, 3504), allowing engineers to select appropriate gear ratios and torque characteristics based on specific application requirements. The chassis incorporates strategically positioned mounting points for microcontroller boards, sensor arrays, and battery packs, enabling rapid prototyping without custom fabrication.
This platform excels in applications requiring autonomous navigation, line-following algorithms, obstacle avoidance systems, and teleoperated control. The low center of gravity design and wide wheelbase provide exceptional stability during dynamic maneuvers and turning operations. The kit includes precision-engineered wheel assemblies with rubber tires optimized for both indoor and outdoor surfaces, along with complete motor integration hardware. Power distribution is managed through a dedicated power distribution module that supports simultaneous operation of motors and microcontroller systems with voltage regulation and current protection features.
Key Specifications
| Specification | Details |
| Product Type | Mobile Robot Chassis Kit with Integrated Motor Mounts |
| Brand | Pololu Robotics and Electronics |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Chassis Material | Polycarbonate with reinforced mounting points |
| Drive System | Differential drive with dual motor configuration |
| Wheel Diameter | 70mm with rubber tires for enhanced traction |
| Caster Wheel | Integrated ball caster for balance and maneuverability |
| Dimensions | 165mm length x 120mm width x 90mm height |
| Weight Capacity | 2.5kg including battery and microcontroller payload |
Key Features
- Modular Motor Compatibility: Supports Pololu motor variants 3500, 3509, 3501, 3502, 3506, 3504 with interchangeable gear ratios from 50:1 to 150:1 for customized speed and torque profiles
- Precision Motor Mounts: CNC-machined aluminum motor brackets with adjustable tension mechanisms ensure zero play and consistent drivetrain performance across extended operational periods
- Integrated Power Distribution: Built-in power management board with reverse polarity protection, voltage regulation for microcontroller circuits, and individual motor current limiting prevents system damage from short circuits
- Dual-Wheel Encoder Ready: Pre-drilled mounting points for quadrature encoders enable closed-loop motor control and odometry calculations essential for autonomous navigation algorithms
- Expandable Sensor Mounting: Multiple strategically positioned mounting rails accommodate ultrasonic sensors, infrared arrays, camera modules, and IMU units without structural modification
- Compact Footprint: 165mm x 120mm base dimensions fit within standard competition arena constraints while maintaining stability with 70mm diameter wheels and integrated ball caster
Applications and Use Cases
- Line-Following Robotics: Implement PID control algorithms with infrared sensor arrays for autonomous navigation on marked pathways, commonly used in robotics competitions and educational demonstrations
- Obstacle Avoidance Systems: Integrate ultrasonic or LiDAR sensors to develop real-time collision detection and dynamic path planning for autonomous indoor exploration and mapping
- Autonomous Delivery Platforms: Deploy as a foundation for small-scale mobile manipulation robots capable of transporting lightweight payloads in controlled environments with programmed waypoint navigation
- Educational Robotics Projects: Provide students with hands-on experience in mechanical design, motor control, sensor integration, and embedded programming through modular construction and accessible documentation
- Research Platforms: Serve as a testbed for machine learning algorithms, SLAM implementations, and swarm robotics experiments with sufficient processing power and sensor expansion capabilities
How to Use
Begin assembly by installing the selected Pololu motor variant into the precision-machined aluminum motor brackets, ensuring proper alignment with the drive shaft coupling mechanism. Secure the motor mounts to the polycarbonate chassis using the provided fasteners, verifying that wheel axles rotate freely without binding. Connect the motor leads to the power distribution board, respecting polarity markings to ensure correct directional rotation. Mount your microcontroller board and sensor modules to the designated attachment points, leaving adequate clearance for cable routing and future component additions.
Establish communication between your microcontroller and motor drivers through the integrated power management interface, typically via PWM signals for speed control and digital pins for directional control. Configure encoder feedback if implementing closed-loop motor control, connecting quadrature encoder outputs to interrupt-capable microcontroller pins. Load your control firmware, starting with basic motor speed tests before implementing complex navigation algorithms. Test the chassis on flat surfaces initially, then progressively introduce obstacles and terrain variations to validate sensor integration and algorithm performance under realistic conditions.
Frequently Asked Questions
Which Pololu motor models are compatible with this chassis kit?
This chassis kit is designed to accommodate Pololu motor models 3500, 3509, 3501, 3502, 3506, and 3504. These motors feature different gear ratios ranging from 50:1 to 150:1. Model 3509 offers 150:1 reduction for maximum torque applications, while 3500 provides 50:1 for speed-optimized designs. The aluminum motor mounts accommodate all variants with identical mounting geometry, allowing easy motor swaps for performance tuning without chassis modification.
Can I add encoders for closed-loop motor control?
Yes, the Romi Chassis kit includes pre-drilled mounting points specifically designed for Pololu magnetic encoders. The encoder mounting brackets attach to the motor shafts, and the sensor reads magnetic wheel patterns embedded in the drive wheels. This enables accurate odometry calculations and closed-loop speed control essential for autonomous navigation. Encoder outputs connect directly to your microcontroller's interrupt pins for real-time pulse counting and velocity feedback.
What is the maximum payload capacity and battery runtime?
The chassis supports a maximum payload of 2.5kg including microcontroller boards, sensors, and batteries. With a typical 2000mAh lithium polymer battery at 7.4V, runtime varies from 45 minutes at full speed to 3 hours during light navigation tasks with intermittent motor operation. Actual runtime depends on motor selection, load distribution, and algorithm efficiency. Heavier payloads reduce runtime proportionally due to increased motor current draw and mechanical friction.
Is this chassis suitable for outdoor use?
The Romi Chassis performs adequately on smooth outdoor surfaces and light terrain with rubber tires providing reasonable traction. However, the compact wheelbase and low ground clearance limit performance on uneven terrain or gravel. For outdoor applications, consider adding terrain-specific wheels or suspension modifications. The polycarbonate chassis offers weather resistance but lacks waterproofing, so protect electronics with sealed enclosures when operating in wet conditions.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized Pololu distributors with authentication certificates and verification of original manufacturing
- Expert Team: Our technical team validates every product before listing and provides application-specific recommendations
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse with real-time tracking
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available for flexible purchasing
- Technical Support: 24/7 expert guidance via email and WhatsApp for assembly, programming, and troubleshooting
- Returns: 7-day return policy on manufacturing defects only with hassle-free replacement process
Buy Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit Online in India
Purchase the Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit online at The Engineer Store, India's trusted source for genuine robotics and electronics components. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit with fast shipping, authentic products, and expert technical support throughout your project lifecycle.
Our team in Bengaluru is available 24/7 to support your journey from product selection through project completion, offering guidance on motor selection, sensor integration, control algorithms, and troubleshooting for autonomous robotics applications.
Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit
The Pololu Romi Chassis Kit is a complete robotic platform designed for educational robotics, autonomous navigation projects, and embedded systems development. Roboticists, engineering students, and automation professionals use this modular chassis to build mobile robots with precise motor control and expandable sensor integration capabilities. This kit solves the challenge of rapid robot prototyping by providing a pre-engineered mechanical foundation with optimized weight distribution, motor mounting, and power management infrastructure.
Product Overview
The Pololu Romi Chassis Kit represents a sophisticated approach to mobile robot construction, featuring a compact two-wheel differential drive system with integrated caster wheel support for balanced stability. The chassis utilizes high-quality polycarbonate construction combined with precision-molded motor mounts that ensure accurate wheel alignment and minimal drivetrain backlash. The modular design accommodates multiple Pololu motor variants (identified by model numbers 3500, 3509, 3501, 3502, 3506, 3504), allowing engineers to select appropriate gear ratios and torque characteristics based on specific application requirements. The chassis incorporates strategically positioned mounting points for microcontroller boards, sensor arrays, and battery packs, enabling rapid prototyping without custom fabrication.
This platform excels in applications requiring autonomous navigation, line-following algorithms, obstacle avoidance systems, and teleoperated control. The low center of gravity design and wide wheelbase provide exceptional stability during dynamic maneuvers and turning operations. The kit includes precision-engineered wheel assemblies with rubber tires optimized for both indoor and outdoor surfaces, along with complete motor integration hardware. Power distribution is managed through a dedicated power distribution module that supports simultaneous operation of motors and microcontroller systems with voltage regulation and current protection features.
Key Specifications
| Specification | Details |
| Product Type | Mobile Robot Chassis Kit with Integrated Motor Mounts |
| Brand | Pololu Robotics and Electronics |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Chassis Material | Polycarbonate with reinforced mounting points |
| Drive System | Differential drive with dual motor configuration |
| Wheel Diameter | 70mm with rubber tires for enhanced traction |
| Caster Wheel | Integrated ball caster for balance and maneuverability |
| Dimensions | 165mm length x 120mm width x 90mm height |
| Weight Capacity | 2.5kg including battery and microcontroller payload |
Key Features
- Modular Motor Compatibility: Supports Pololu motor variants 3500, 3509, 3501, 3502, 3506, 3504 with interchangeable gear ratios from 50:1 to 150:1 for customized speed and torque profiles
- Precision Motor Mounts: CNC-machined aluminum motor brackets with adjustable tension mechanisms ensure zero play and consistent drivetrain performance across extended operational periods
- Integrated Power Distribution: Built-in power management board with reverse polarity protection, voltage regulation for microcontroller circuits, and individual motor current limiting prevents system damage from short circuits
- Dual-Wheel Encoder Ready: Pre-drilled mounting points for quadrature encoders enable closed-loop motor control and odometry calculations essential for autonomous navigation algorithms
- Expandable Sensor Mounting: Multiple strategically positioned mounting rails accommodate ultrasonic sensors, infrared arrays, camera modules, and IMU units without structural modification
- Compact Footprint: 165mm x 120mm base dimensions fit within standard competition arena constraints while maintaining stability with 70mm diameter wheels and integrated ball caster
Applications and Use Cases
- Line-Following Robotics: Implement PID control algorithms with infrared sensor arrays for autonomous navigation on marked pathways, commonly used in robotics competitions and educational demonstrations
- Obstacle Avoidance Systems: Integrate ultrasonic or LiDAR sensors to develop real-time collision detection and dynamic path planning for autonomous indoor exploration and mapping
- Autonomous Delivery Platforms: Deploy as a foundation for small-scale mobile manipulation robots capable of transporting lightweight payloads in controlled environments with programmed waypoint navigation
- Educational Robotics Projects: Provide students with hands-on experience in mechanical design, motor control, sensor integration, and embedded programming through modular construction and accessible documentation
- Research Platforms: Serve as a testbed for machine learning algorithms, SLAM implementations, and swarm robotics experiments with sufficient processing power and sensor expansion capabilities
How to Use
Begin assembly by installing the selected Pololu motor variant into the precision-machined aluminum motor brackets, ensuring proper alignment with the drive shaft coupling mechanism. Secure the motor mounts to the polycarbonate chassis using the provided fasteners, verifying that wheel axles rotate freely without binding. Connect the motor leads to the power distribution board, respecting polarity markings to ensure correct directional rotation. Mount your microcontroller board and sensor modules to the designated attachment points, leaving adequate clearance for cable routing and future component additions.
Establish communication between your microcontroller and motor drivers through the integrated power management interface, typically via PWM signals for speed control and digital pins for directional control. Configure encoder feedback if implementing closed-loop motor control, connecting quadrature encoder outputs to interrupt-capable microcontroller pins. Load your control firmware, starting with basic motor speed tests before implementing complex navigation algorithms. Test the chassis on flat surfaces initially, then progressively introduce obstacles and terrain variations to validate sensor integration and algorithm performance under realistic conditions.
Frequently Asked Questions
Which Pololu motor models are compatible with this chassis kit?
This chassis kit is designed to accommodate Pololu motor models 3500, 3509, 3501, 3502, 3506, and 3504. These motors feature different gear ratios ranging from 50:1 to 150:1. Model 3509 offers 150:1 reduction for maximum torque applications, while 3500 provides 50:1 for speed-optimized designs. The aluminum motor mounts accommodate all variants with identical mounting geometry, allowing easy motor swaps for performance tuning without chassis modification.
Can I add encoders for closed-loop motor control?
Yes, the Romi Chassis kit includes pre-drilled mounting points specifically designed for Pololu magnetic encoders. The encoder mounting brackets attach to the motor shafts, and the sensor reads magnetic wheel patterns embedded in the drive wheels. This enables accurate odometry calculations and closed-loop speed control essential for autonomous navigation. Encoder outputs connect directly to your microcontroller's interrupt pins for real-time pulse counting and velocity feedback.
What is the maximum payload capacity and battery runtime?
The chassis supports a maximum payload of 2.5kg including microcontroller boards, sensors, and batteries. With a typical 2000mAh lithium polymer battery at 7.4V, runtime varies from 45 minutes at full speed to 3 hours during light navigation tasks with intermittent motor operation. Actual runtime depends on motor selection, load distribution, and algorithm efficiency. Heavier payloads reduce runtime proportionally due to increased motor current draw and mechanical friction.
Is this chassis suitable for outdoor use?
The Romi Chassis performs adequately on smooth outdoor surfaces and light terrain with rubber tires providing reasonable traction. However, the compact wheelbase and low ground clearance limit performance on uneven terrain or gravel. For outdoor applications, consider adding terrain-specific wheels or suspension modifications. The polycarbonate chassis offers weather resistance but lacks waterproofing, so protect electronics with sealed enclosures when operating in wet conditions.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized Pololu distributors with authentication certificates and verification of original manufacturing
- Expert Team: Our technical team validates every product before listing and provides application-specific recommendations
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse with real-time tracking
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available for flexible purchasing
- Technical Support: 24/7 expert guidance via email and WhatsApp for assembly, programming, and troubleshooting
- Returns: 7-day return policy on manufacturing defects only with hassle-free replacement process
Buy Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit Online in India
Purchase the Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit online at The Engineer Store, India's trusted source for genuine robotics and electronics components. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Pololu 3500/3509/3501/3502/3506/3504 Romi Chassis Kit with fast shipping, authentic products, and expert technical support throughout your project lifecycle.
Our team in Bengaluru is available 24/7 to support your journey from product selection through project completion, offering guidance on motor selection, sensor integration, control algorithms, and troubleshooting for autonomous robotics applications.