Fragment

Fragment is an overhead spinner. This robot was built by Sam Pierce, a high school junior from Fairfax, Virginia. This is the first bot ever to turn off Brett the Brick.

Robot Facts

Fragment

Driver	Sam Pierce
Weight Class	3lb
Body Material	Glass Fiber Nylon, Carbon Fiber Nylon, Carbon Fiber, Grade 5 Titanium (6Al-4V)
Weapon	AR500 Overhead Spinner
Weapon Drive	Brushless Outrunner
Drive	Brushed Gear Motor
Power	850 MaH 3S Lipo

Tournament Results

2021

NHRL February	Did Not Compete
NHRL March	2 Wins - 2 Losses

Combat History

Fragment Version 1

• Version 1:
  • Overhead Horizontal Spinner - 4200 rpm, ~80mph tip speed
  • 3s 850mAh
  • 40amp esc
  • Brushed drive (22mm Botkits gear motor)
  • NylonX and Nylon 680 Chassis with 2mm Carbon Fiber top and bottom plates.
  • 250mm diameter AR500 Weapon

    

    Fragment Version 2

• Version 2:
  • Overhead Horizontal Spinner - 9300 rpm, ~250mph tip speed
  • 4s 850mAh
  • 51amp esc
  • Brushless Drive (Modified 22mm Botkits gear motor
  • Unibody Bridge Nylon chassis with 1mm titanium top and bottom plates.
  • 220mm diameter AR500 Weapon