FJDynamics Rough Ranger Line Marker Kit (LM03): Product Overview & Technical Specifications

The FJDynamics LM03 Line Marker Kit is a specialized, modular attachment engineered to convert the FJDynamics Rough Ranger autonomous turf platform into an automated sports field line painting system. Utilizing the base unit’s RTK GNSS and LiDAR positioning infrastructure, the kit dispenses turf-approved paint across customizable field layouts with centimeter-level precision.

Key Technical Specifications

Feature	Specification
Model	FJDynamics LM03 Line Marker Kit
Base Platform Compatibility	FJDynamics Rough Ranger Autonomous Mower
Paint Tank Capacity	25 L (5.5 gal)
Line Width Range	50 mm – 170 mm (2.0 in – 6.7 in)
Adjustable Nozzle Height	30 mm – 120 mm (1.2 in – 4.7 in)
Max Marking Speed	Up to 3.0 km/h (1.9 mph)
Coverage per Charge	Up to 20 full-size 11v11 soccer fields
Max Marking Time per Charge	Up to 20 hours (continuous paint pump & vehicle runtime)
Unit Dimensions (L × W × H)	700 × 600 × 650 mm (27.6 × 23.6 × 25.6 in)
Attachment Weight (Dry)	32 kg (70.5 lbs)
IP Rating	IPX4 weather-resistant rating
Operating Temperature	5°C to 35°C (41°F to 95°F)
Rated System Power	150 W

Core Systems & Architecture

1. Spray & Fluid Delivery System

• Adjustable Nozzle Control: Features an electronically monitored spray nozzle with variable height (30 mm – 120 mm) and width settings (50 mm – 170 mm) to meet standard line width regulations for different sports federations.

• Integrated Fluid Handling: Houses a 25-liter paint reservoir designed with quick-connect fluid lines and anti-clogging filter assemblies to maintain uniform paint pressure.

• Paint Efficiency Management: Controls pressure flow relative to travel speed to maintain consistent line opacity while reducing paint consumption compared to manual line marking.

2. Autonomous Navigation & Path Precision

• RTK Centimeter Accuracy: Leverages the Rough Ranger’s RTK GNSS setup to execute straight lines, arcs, hash marks, and corner boxes without physical string lines or manual layout staking.

• Resume & Interruption Protocol: Remembers exact path coordinates when paused for paint refills or field moves, resuming spray operations at the precise stopping point to avoid double-painting or gap gaps.

3. Digital Layouts & Software Integration

• Pre-Loaded Field Templates: Integrates with the FJD mobile app / tablet controller, offering standardized templates for soccer, American football, rugby, lacrosse, and baseball fields.

• Custom Layout Mapping: Allows operators to digitize custom multi-sport field layouts, logos, or non-standard boundary dimensions using handheld mapping tools or app-defined GPS points.

Commercial Applications

• Athletic & Sports Complexes: Automated line marking for soccer, rugby, lacrosse, field hockey, and American football pitches.

• Municipal & School Grounds: Multi-use sports fields, intramural grounds, and seasonal tournament setups.

• Baseball & Track Facilities: Outfield foul line marking, perimeter turf lines, and field border boundaries.