Combat Robotics

Pong

Version 1.0 · Retired

Preparing 3D model…

About the Bot

Pong was my first combat robot built to compete in the 1 lb Plastic class. It weighed in at only 0.902 lb, significantly under the weight limit. Pong's weapon is full body spinner, meaning that the entire bot rotates at tremendous speeds turning your own body into a weapon. This style of combat robot is most commonly known as a "Melty Brain". Pong has an effective diameter of 145mm (~5.7in).

Pong's single drive motor suffers from immense overheating issues. In an effort to combat this issue the mounting system for the motor was designed with airflow in mind, giving it that distinct rib cage esthetic. This bot was created as a challenge to myself to build a bot for the 1 lb weight class using the electronics from my now-retired Vasilis 1.0 and Hyphen 1.0.

Pong is named after the classic 1972 video game where a white ball is bounced back and forth between two paddles. In the arena Pong definitely lives up to its name, as it takes nearly zero damage while blasting itself between the arena walls in the hopes of locating its opponent.

Competition Record

2025

EventResult
West Coast Combat Robotic League August Event9th / 10
NorCal Summer Smash17th / 21
West Coast Combat Robotic League June Event13th / 19

Complete Breakdown

CAD Views

Full assembly first, then cutting-plane cross sections — click to enlarge.

Pong full assembly CAD view
Cutting planes

Cross sections

Pong cross section
Pong cross section
Pong cross section

Component Details

Printed Parts

Printed Parts

Top & Bottom Shell
Overture Super PLA+
Spiked Drive Wheel
95A TPU
Free Wheel
Overture Super PLA+
Electronics

Electronics

Battery
OVONIC 11.1V 1000mAh 3S 80C Lipo
Drive Motor
FingerTech S2838 Brushless Inrunner
Drive ESC
MB30020 20A Brushless ESC
Receiver
Flysky FS2A 4 Channel
Power Switch
FingerTech Mini Power Switch