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Sweeney Todd

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"I can't wait to see you guys waltzing around the arena!"
Angela Scanlon references Sweeney Todd's unique locomotion
Sweeney Todd is an invertible robot which competed in Series 8 of Robot Wars. It was built by an Oxford-based team, and was notable for being the first competitor to feature Mecanum wheels as a method of locomotion. However, it lost its Group Battle after becoming immobilised following attacks from PP3D and Apollo.

The name Sweeney Todd is derived from the protagonist of the 1846-1847 story series, The String of Pearls. Stage productions and films named after Sweeney Todd would later be produced, based on the same character.

DesignEdit

Sweeney Todd with team

Sweeney Todd with its team

Sweeney Todd was constructed from 4mm of thick steel, and is armed with a circular saw.

Sweeny todd blade

Sweeney Todds blade

Sweeney Todd is the first robot in the history of Robot Wars to use Mecanum wheels, which have rollers attached to allow the robot to drive in any direction without turning. This gives Sweeney Todd high manoeuvrability, although it will need to turn manually in order to point its circular saw at opponents.

Sweeney Todd went into Robot Wars with a major disadvantage, however - it only weighs 45kg, meaning Sweeney Todd is 10kg lighter than the maximum weight for middleweight robots, according to the Fighting Robots Association. With the heaviest competitors in Series 8 weighing 110kg, Sweeney Todd is under half the weight of that amount.

Robot HistoryEdit

Series 8Edit

Sweeney Todd appeared in Episode 4, where in the first round, it faced former Annihilator champions Kan-Opener, full-pressure flipper Apollo, and undercutting spinner PP3D, built by Gary Cairns from the team that won Series 7 with Typhoon 2.

Apollo vs Sweeney Todd

Sweeney Todd is launched by Apollo

Apollo flips sweeney todd

And launched once again

Its role at the start of the battle was extremely passive, avoiding the other robots, only bringing its angle grinders into play onto Apollo when it had lost drive on one wheel. Sweeney Todd returned to the background, avoiding danger until PP3D attacked it, ripping an angle grinder out of Sweeney Todd. It became clear that Sweeney Todd was immobilised by this attack, only showing movement by coasting. It sustained more damage from PP3D, warping the shape of its body, and was flipped into the arena wall by Apollo. As Sweeney Todd was finally counted out, it was hit by PP3D, and was somersaulted by Apollo, and sent spinning away by the final blow from PP3D. It was eliminated from the competition, alongside Kan-Opener.

"It was a bit disappointing, but you know, we came here for fun!"
— Dominique Andreson

ResultsEdit

SWEENEY TODD - RESULTS
Series 8
Series 8 - UK Championship
Round 1
Episode 4, Group Battle vs. Apollo, Kan-Opener, PP3D Eliminated

Wins/LossesEdit

  • Wins: 0
  • Losses: 1

Series RecordEdit

Sweeney todd gateway

Sweeney Todd enters the arena

Series Sweeney Todd Record
Series 1-7 Did not enter
Series 8 Heat, Round 1
Series 9 Did not enter

TriviaEdit

  • Before building Sweeney Todd, the team had experience building autonomous hovercrafts and test rover bots.
  • Sweeney Todd was one of only three robots in Series 8 to not use modern Lithium batteries inside the machine, the others being The General and DisConstructor, both of which used lead acid batteries.
  • In October 2016, Dominique from the team won the 'Best Female Role Model on Robot Wars' award at the 2016 IET Engineering the Future Festival, an award created by judge Noel Sharkey.

External LinksEdit

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