01
Overview & Eligibility
THE CHALLENGE
The LFR Challenge tests participants' skills in designing, building, and programming autonomous robots capable of navigating complex tracks with high speed and precision.
WHAT TO EXPECT
Teams must engineer robots that can handle sharp curves, variable angles, wave tracks, and intersections without human intervention.
01
Undergraduate Students
Open to all undergraduate students currently enrolled at any university in Bangladesh.
02
Individual or Team
Participants may register individually or form a team.
03
Student ID Required
All participants must carry and present their official Student ID Card for identity verification.
02
Team & Registration
Core Team SizeEach team may consist of up to 3 core members.
Additional MembersAdditional members can be included by paying an extra fee of 600 BDT per person.
Registration Fee1,500 BDT per team, payable via online payment channels during registration.
Team IdentityEvery team must register under a unique team name.
Single RegistrationA participant may register in only one team per segment. Multiple registrations by the same individual in a single segment are not permitted, though a participant can register across different segments.
Robot SharingSharing or reusing the same LFR across multiple teams is strictly prohibited and will result in immediate disqualification.
03
Robot Specifications
DIMENSIONS20 × 20 × 15 cm max±3% tolerance allowance
WEIGHT1.5 kg max±3% tolerance allowance
DRIVE2WD / 4WD / Multi-driveAny physical shape within size limits
POWERLess than 24 VoltsOn-board electrical power supply only
KILL SWITCHAt least 1 requiredMust be easily accessible
AUXILIARY SWITCHESMaximum 3Excluding the main power switch
04
Control, Communication & Integrity
AutonomyThe LFR must operate completely autonomously without external communication or human control during a live run.
Wireless RestrictionNo wireless communication modules such as Wi-Fi, Bluetooth or RF are permitted in the LFR at any stage.
Approved MCUsMicrocontrollers with integrated wireless capabilities, such as ESP32, may be used only if wireless features are completely disabled and approved in advance by organizers with proper justification.
Custom BuildCommercially available readymade LFRs are strictly prohibited. LFRs must be designed, assembled, and programmed by the team. Buying, borrowing, or copying designs is illegal and results in disqualification.
Track SafetyRobots must not feature any part or mechanism that could damage, scratch, or discolor the arena track.
05
Arena Specifications
SURFACEBlack line on white background
LINE WIDTH3 cm (30 mm)
START / FINISH30 × 30 cm solid black squares
TRACK ELEMENTSCurves, angles, waves & irregular segments30°, 45°, 60°, 90° angles; sine waves; square wave curves
Track Reveal The main competition track design remains undisclosed until match day, but will be structurally aligned with the demo track shared in advance.
06
Gameplay & Operational Rules
ROUND 01ELIMINATION
CALIBRATION2 min
MAIN RUN3 min
Checkpoint skipping is strictly prohibited.
ROUND 02FINALS
CALIBRATION3 min
MAIN RUN5 min
1 checkpoint skip allowed (−100 pts).
Arena EntryTeams must enter the arena within 15 seconds of being called. Failure to do so automatically starts the calibration timer.
Post-Calibration PlacementAfter calibration ends, the LFR must be placed at the start point within 15 seconds, or the main timer begins automatically.
Team Leader RoleOnly the team leader is permitted in the LFR arena. All handling, clarifications, and inquiries must go through the team leader.
Submission & CalibrationLFRs must be submitted at least 30 minutes prior to match start. No hardware or software changes are permitted post-submission.
Restart PolicyMaximum 5 restarts permitted per round. Each restart incurs a 50-point penalty. The LFR restarts from the last successfully crossed checkpoint in the same orientation. Re-calibrating during a restart counts as an extra restart.
Touching RuleTouching the LFR during a live run causes an immediate forced restart.
Stall RuleIf the LFR remains stuck in place for over 10 seconds, a forced restart is issued.
Exhausted RestartsIf all 5 restarts are used, the team becomes ineligible for time bonus points, even if the LFR completes the course.
07
Scoring System
TOTAL SCORET + C + S + R + CS + P
Time Bonus (T)Bonus for finishing ahead of max round time(Total Round Time − Elapsed Time) × 1
Passing Checkpoint (C)Each successfully cleared checkpoint+100 / checkpoint
Stopping at End (S)Stopping inside the finish square+30 points
Restart Penalty (R)Each requested or forced restart−50 / restart
Checkpoint Skip (CS)Skipping 1 checkpoint in Finals−100 points
Perfect Run (P)Zero restarts during run+30 points
08
Deciding Factors & Tie-Breaker
01
Primary Ranking
The team with the highest total score in the Final Round is declared the winner.
02
Fewest Restarts
If total scores are tied, the team with the fewest combined restarts across both rounds ranks higher.
03
Tie-Breaker Run
If still tied, a sudden-death tie-breaker run is held. The highest score in this run wins.
09
General Rules & Disclaimers
Safety & LiabilityTeams are solely responsible for the safety and operation of their LFRs and are liable for any damages/accidents caused.
Code of ConductDisrespectful behavior, mocking, or unsportsmanlike remarks toward judges, organizers, or opponents results in disqualification.
Technical InquiryJudges may question teams on robot design, programming, and electronics. Inability to explain functioning may result in disqualification.
Finality of DecisionsAll decisions made by the judging panel are final and binding.
10
LFR Coordinators
Need help with registration, robot specifications, rules or the competition format? Contact an LFR coordinator directly.
READY TO COMPETE?
Build. Calibrate. Conquer.
Take on the LFR Challenge at MECHNOVATION 12X.