1. General Rules

1.1 A team must have no more than four official members per competing robot

1.2 Robot Fighting League reserves the right to limit the amount of team members allowed into the workshop and/or competitor area

1.3 Competitors must be willing to disassemble their robot to an extent to show organisers that all rules have been followed. 

1.4 The organisers reserve the right to modify the rules at any time.

2. Combat

2.1 Entering the Arena

2.1.1 Robots must enter the arena with the safety link disconnected.

2.1.2 Robots must only power  up their weapons after they’ve entered the arena and the doors have been closed.

2.1.3 Competitors must start the fight in the positions decided upon by the Arena Supervisor.

2.2 Combat Start

2.2.1 Competitors may move and engage other robots as soon as the start countdown has finished.

2.2.2 Competitors may not enter the safety area around the arena at any time unless explicitly allowed by the Arena Supervisor.

2.2.3 Competitors may not hinder or limit the view of other competitors or the Arena Supervisor.

2.2.4 Competitors may not hinder or limit the actions of other competitors or the Arena Supervisor.

2.2.5 Robots and team members may not deliberately cause damage to or tamper with the arena.

2.3 End of Combat

2.3.1 Combat ends when the timer runs out, when all but one (or all) robots are immobilised or when the Arena Supervisor or Organisers call the fight to be over.

2.3.2 All combat, movement or any sort of contact must cease at the end of the fight

2.3.3 The maximum length of the fight is 3 minutes, unless under special conditions, which will be announced before the fight.

2.3.4 Robots are considered eliminated when:

  • The pilot of the robot clearly audibly or visibly concedes the fight.

  • The robot is timed out by the 10 second immobilisation counter.

  • The robot enters any of the Dead Zones or leaves the arena for any reason.

  • The fight is ended for any reason.

2.3.5 The immobilisation counter starts for a robot when it cannot move outside of its own radius under its own power.

2.3.6 Robots considered eliminated may not move, under any circumstances and must disable all systems.

2.3.7 Other robots may not attack or come in contact with robots that have been eliminated deliberately. The house robot can move the eliminated robot out of the way, in a manner that minimises damage to the robot.

2.3.8 The Organisers or Arena Supervisor has the right to stop any combat at any moment on the grounds of safety or unfair conduct.

2.4 House Robots

2.4.1 The House Robot may not interact with other robots or leave the Corner Patrol Zone (CPZ) during combat, unless specified by another rule.

2.4.2 The House Robot may leave the CPZ if a competitor is visibly struck (e.g. on the wall or floor) and can try and unstick the competitor while trying to minimise the damage it causes.

2.4.3 The House Robot may move immobilised robots out of the way of combat, or if it’s blocking parts of the arena while trying to minimise the damage it causes to the robot.

2.4.4 If a competitor enters the CPZ, the House Robot may attack it, until it leaves the CPZ or is eliminated.

2.4.5 If the House Robot is attacked, while outside the CPZ for any reason it may fight back.


3. Construction

3.1 Limitations

3.1.1 The sum of all robots and consumables entered by a single competitor may not exceed 400mm x 400mm x 400mm at safety inspection or when placed into the arena when in its largest configuration.

3.1.2 The sum of all robots and consumables entered by a single may not weigh more than 5kg at safety inspection or when placed into the arena.

3.1.3 The weight limit for autonomous robots and robots that move via walking is increased by 50% and the weight limit for robots that move via shuffling is increased by 20%

3.2 Banned Devices

The following devices are not allowed in any RFL event unless explicitly allowed by both the organisers and the arena manager:

  • Any device designed to intentionally immobilize, slow or stop the weapon of the opponent.

  • Any liquid not completely contained within the robot.

  • Any device that generates unnecessary heat.

  • Any device designed to explode or implode.

  • Any device that is designed to damage anything other than the opposing robots.

  • Any device designed to cause non-physical damage to the opposing robot.

  • Any device not covered by the previous rules but either the arena manager or organisers deem to be too dangerous.

3.3 Spinning Weapons

3.3.1 If you are using multiple rotational weapons you must submit the design for review to be approved by the organisers.

3.3.2 The spinning element of any rotational weapon must spin down to a full stop in under 15 seconds.

3.3.3 Rotational weapons exceeding any two of the three limits below must be submitted for review and be pre-approved by the organisers:

3.3.4 The spinning element is more than 20% of the robot’s total weight or exceeds 600g. (This includes any directly coupled motor components rotating on the same axis).

3.3.5 The spinning element spins above 500 RPM.

3.3.6 The spinning element is greater than 300mm in diameter.

3.4 Pneumatic Weapons (Provisional; Will be updated in the near future)

3.4.1 Allowed gasses

  • Air

  • Carbon Dioxide (CO2)

3.4.2 The maximum pressure at any moment must not exceed 100 psi (17 bar).

3.4.3 Total volume of gas must not exceed 1/8th of the volume of the robot.

3.4.4 All pneumatic systems must incorporate a manual isolation valve that can be accessed from outside the robot.

3.4.5 All pneumatic systems must incorporate a manual pressure release valve that can be accessed from outside the robot that will release all pressure.

3.4.6 Teams must prove each commercial component has rating appropriate to the pressure used.

3.4.7 Each isolated system will have a pressure limit equal to the lowest rating of the system

3.5 Materials

3.5.1 Any material not specified in the below rules must be checked and confirmed by the organisers of the RFL event before use.

3.5.2 Allowed materials:

  • All types of wood

  • All types of plastic

  • All non-reactive metals

  • Paper/card

3.5.3 The following materials are not allowed at any RFL event:

  • Glass

  • Ceramics

  • Any material that is considered reactive, explosive, radioactive, toxic or highly flammable.

3.6 Control

3.6.1 All communications frequencies must fall within legal bounds, as defined by OfW 311

3.6.2 Robots must not cause interference to other users.

3.6.3 All mechanisms must be deactivated when control is lost.

3.7 Autonomy

3.7.1 All autonomous systems must be able to be activated and deactivated remotely.

3.7.2 All autonomous systems must have an additional indicator LED, that is always visible, to show whether the system is activated or deactivated


4. Power

4.1 Batteries

4.1.1 Allowed Battery Types:

  • Lithium Ion

  • Lithium Polymer

  • LiFePO4

  • NiMH

  • Alkaline

4.1.2 The use of any type of battery not listed in 4.1.1 must be explicitly approved by the organisers.

4.1.3 Batteries must not have any liquid components.

4.1.4 Custom assembled battery packs are not allowed without explicit permission from the organisers.

4.1.5 Lithium and other potentially explosive batteries must have a protective box made from an approved battery protection material that does not encase any other components:

  • Steel protective boxes must have a wall thickness of at least 2mm.

  • HDPE protective boxes must have a wall thickness of at least 7mm.

4.1.6 Batteries must not exceed 44.4V (12S lipo).

4.1.7 The total power consumption of the robot must not exceed 2kW.

4.2 Wiring

 4.2.1 Batteries must be fused at the maximum continuous discharge current of the battery, or 160A, whichever is lower.

4.2.2 All wiring and connectors must be rated for 20% more than the required fuse rating.

4.2.3 An easily removable safety link must be included in series with the power fuse, disabling all operation when removed.