Shreddit X

From NHRL

Shreddit X is an eXperimental platform for Shreddit Bro, and is also a two-wheeled vertical beater bar 3lb robot from the New York City based team Shreddit.

Robot Facts

Shreddit X
Driver Evan Arias
Team Shreddit
Weight Class 3lb
Body Material UHMW frame and wheel guards, Al top and bottom plates, Ti forks.
Weapon S7 Beater Bar
Weapon Drive Brushless outrunner
Drive Brushless outrunner
Power 4s LiPo

Shreddit X has made a debut at May 2021 NHRL event, with the intention of testing performance of several new components and judging their suitability for implementation in Shreddit Bro for future iterations.

The new weapon tested was a custom designed beater bar, which was manufactured out of S7 tool steel. The weapon showed excellent bite characteristics, and was able to pop up opponents even at slower approach speeds. The durability/longevity results were inconclusive as it became apparent that the beater bar was not hardened as ordered. The new weapon used bearing and pulley hubs machined in-house, and these performed well - however the typical Shreddit Bro dual side-by-side timing belt setup resulted in stalled weapon in multiple matches, this setup will be replaced in the next iteration.

Shreddit X drive maintained the Botkits 22mm planetary DC gearmotors, but used custom cut XLPE foam wheels and in-house machined wheel hubs. These silicone coated blue cross linked polyethylene foam wheels have been successfully used by 3lb Billy and have become popularly known as “Billy Wheels.” The wheels showed great performance in durability and traction, and the hubs held on well until one was undercut by Silent Spring and was knocked off the drive shaft. In future iterations the wheels will be maintained, but the hubs will be modified to have larger mating surfaces to the drive shafts, and larger setscrews.

Shreddit X frame is currently the typical slot-and-tab 3/8” thick UHMW panels, and 1/8” thick UHMW wheel guards. There are plans to replace some of these with 3D printed panels and mounts in future iterations.

The top and bottom panels are 1.5mm aluminum, like the bottom plates on Shreddit Bro - and they fared normally. This will likely not change in the near future.

Shreddit X used the typical 2 titanium forks, one on each side of the beater bar. The slight modification was that the weapon pulley side fork had a protrusion at the front to help guard the pulley/belts from glancing hits.








Statistics

Info

  • Rank: #45 in 3lb.
  • Last 5 fights: WWLWL
  • Current streak: L1 (0 KOs/KO'd)
  • Longest winning streak: 3 (2 KOs)
  • Longest losing streak: 1 (1 KO'd)
  • Avg fight time (seconds): 118.1

Record

Year Events Fights W L % KOs KO'd
2018-19
2020
2021 2 10 6 4 0.600 4 1
2022
All-Time 2 10 6 4 0.600 4 1


Events

Date Fought as Reached Place Fights W L KOs KO'd
May 15, 2021 Shreddit X Losers 5 5 3 2 2 1
July 24, 2021 Shreddit X Losers 7 5 3 2 2 0


Opponents

Opponent Fights W L KOs KO'd Last Meeting
Fe Fan 2 2 0 1 0 July 24, 2021
Shredded Lettuce 1 1 0 1 0 May 15, 2021
Bone Collector 1 1 0 1 0 July 24, 2021
Animus 1 1 0 1 0 July 24, 2021
Fifth wheel 1 1 0 0 0 May 15, 2021
Judge's Dream 1 0 1 0 1 May 15, 2021
Silent Spring 1 0 1 0 0 May 15, 2021
Silent X 1 0 1 0 0 July 24, 2021
Wicked Wedge 1 0 1 0 0 July 24, 2021

Click "Expand" to see this table.


Full Fight History

Date Opponent Round Result By Points Fight Length (s) Video
May 15, 2021 Judge's Dream Winners 2 Loss KO -1.00 150 https://youtu.be/q6JZYaooUAE
May 15, 2021 Tusker Losers 1 Win Forfeit 0.00
May 15, 2021 Shredded Lettuce Losers 2 Win KO 1.11 26 https://youtu.be/5elaqlzA60k?t=15779
May 15, 2021 Fifth wheel Losers 3 Win Judges Decision 1.00 180 https://youtu.be/xw5B294508s
May 15, 2021 Fe Fan Losers 4 Win KO 1.00 55 https://youtu.be/5elaqlzA60k?t=26843
May 15, 2021 Silent Spring Losers 5 Loss Judges Decision -1.00 180 https://youtu.be/7Z32P0sMBeA
July 24, 2021 Burnout Winners 1 Win Forfeit 0.00
July 24, 2021 Bone Collector Winners 2 Win KO 1.00 41 https://youtu.be/ddngkZAFUbw
July 24, 2021 Animus Winners 3 Win KO 1.00 9 https://youtu.be/5t6jcIZjSjg
July 24, 2021 Silent X Winners 4 Loss Judges Decision -1.00 180 https://youtu.be/6RMKso3MctU
July 24, 2021 Fe Fan Losers 6 Win Judges Decision 1.00 180 https://youtu.be/NLqjXYx6wB0
July 24, 2021 Wicked Wedge Losers 7 Loss Judges Decision -1.12 180 https://youtu.be/dqxhHkMxvEA
November 13, 2021 Uch Funt Winners 2 Loss Forfeit 0.00
November 13, 2021 0.3rd Lawette Losers 1 Loss Forfeit 0.00

* Forfeits are not counted in a bot's W-L record.

For more information on how points are calculated for rankings, click here.

Click "Expand" to see this table.

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