top of page

Katzy

The Combat Robot

Spring 2020

iso_edited.jpg

Overview

In Spring 2019, I designed my own 3lb combat robot to compete in an annual college competition through RoboBears, UC Berkeley's Premier Robotics Organization. I served as a vice-president of RoboBears for almost two years. This position provided me a platform to engage women in STEM majors into robotics. I also influenced students to join the club regardless of their majors and background, and all we asked was desire and curiosity within robotics and design - no minimum knowledge required. To further spread my knowledge, I created a DeCal where I participated as the co-instructor to teach students how to make their first fighting robot. I also taught micro-controller strategies to add different behaviors to the robot.
The main point of creating my own combat robot was to have more hands-on experience. I used the water- jet cutter, drill press, 3D printer, and laser cutter. However, this was stopped due to the COVID-19 spread in Spring 2020 and it will be restarted soon.

About Katzy

top_edited.jpg
Katzy is a two-wheel drive robot inspired in the agility and speed of a cat. The robot has an estimated weight of 2.88 lb. It is a fast and small making it easier for it to attack robots while protecting itself. 
Katzy - Top View

Components

Drive Train: 
  • ​Drive motor (x2) | 22mm Gearmotor 
  • Wheel (x2)
  • Wheel Hub (x2)
  • Drive Motor Mount (x2) | Al 6061 | WaterJet Cut
Weapon:

  • Weapon motor | Maytech Brushless 3530 1100

  • Weapon motor mount | PLA | 3D Printed

  • Pulley 26T 

  • Pulley 42T

  • Belt 85T

  • Weapon support | HDPE | WaterJet Cut

  • Weapon stabilizer | Al 6061 | WaterJet Cut

  • Collar

  • Linear motion shaft ⌀3/8" | Carbon Steel

  • Bearing for Shaft ⌀3/8"

  • Tube ⌀3/4" | 4130 Alloy Steel

Armor: ​
  • Top Plate | Al 6061 | WaterJet Cut 
  • Bottom Plate | Al 6061 | WaterJet Cut
  • Side Plate (x2) | HDPE | WaterJet Cut
  • Back Plate | HDPE | WaterJet Cut
  • Front Plate (x2) | HDPE | WaterJet Cut
  • Wedge (x2)| PLA | 3D Printed 
Electronics
  • Battery
  • Receiver
  • Transmitter
  • Power LED
  • Weapon motor ESC
  • Drive motor ESC
  • Mini Power Switch
​
Miscellaneous:
  • Flat Head Thread-Forming Screws for Plastic
  • Cables
top no plate.JPG
Katzy - Components Top View

Weapon

Katzy's weapon is made of a 4130 alloy steel tube welded to four steel teeth. The weapon is allowed to rotate easily around the dead shaft since the tube is press fitted to a bearing. One of the ends of the weapon is connected to a pulley and a motor that allow the weapon to rotate up to 10,000 RPM.
weapon.JPG
Katzy - Weapon
The weapon is supported by two motor supports that are connected to the bottom plate and the front plates of the robot. In addition, there are two weapon stabilizers that allow the robot to flip itself back to its original position in the case of being up-side-down, which is common in combat robots. 
iso no top plate.JPG
Weapon Support
Weapon Stabilizer
Katzy - Isometric view

Manufacturing

Katzy will resume manufacturing soon... 
bottom of page