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Image of Humpti
Year of Creation 2020-2021
Current Version 1.0
Update Year 2020-2021
Wins/Losses 1/1
Information and Statistics
Weight Class 2lb
Weapon Class Beater Bar
Combined Wins/Losses 1/1
Weapon Speed 38,251 RPM

Humpti is an invertible 3D-printed a bar beater. Its chassis is made of ABS plastic with its side and top plates being made of primarily water-jetted HDPE. The weapon is made of water-jetted aluminum.


2lb Competition 2021

  • Results: 1-1
    • Single Elimination:
      • Victory vs Roombi
        • Both robots had a broken weapon, so the battle was purely driver based.
        • After a few minutes of the robots mashing into each other, Humpti won off judges decision
      • Defeat vs Largetoni
        • Humpti tried using its weapon again, which promptly failed.
        • Humpti was smacked by Largetoni and got slammed into a wall, where it got stuck on its side.


Humpti V1.0

Created by: Hanran Wu, Magdiel Batista, Monique Tabet, Natalie Van Slyke, Steven Zhao

Drive Motors 22mm DC gearmotor
Drive Motor Controllers Scorpion Mini Electronic Speed Control
Weapon Motor Turnigy 2836 Brushless 450-Size Heli Motor 3700kv
Weapon Motor Controllers Yep 40A ESC 5A SBEC
Receiver Hobby King 2.4Ghz Receiver 6Ch V2
Remote Control Hobby King 2.4Ghz 6Ch Tx and Rx V2
Battery Turnigy Nano-Tech 1000mAh 3s 45~90c LiPo Pack


  • The first belt used in competition snapped due to a weak weld
  • The replacement belt had a stronger tension than the previous belt, which ended up pulling the weapon motor into the 3D-printed chassis. This resulted in the robot smoking due to what we assume to be an electrical shortage and was sent to robot jail since everyone thought it was going to explode

Good aspects

  • The chassis: very round, very sturdy, very good
  • Invertibility
  • Plenty of room for electronics
  • Used two different plastic material for enhanced armor
  • Good center of balance
  • Able to spin very quickly
  • Easy to drive
  • Weapon was good when it worked


  • Order custom belts and make sure to have backups
  • Different weapon mounting system to avoid possible chassis melting, preferably not using plastic


Humpti has hatched

Humpti #1 Beyblade