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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. |
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]]. |
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===Robot Facts=== |
===Robot Facts=== |
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[[File:PXL 20210312 195237656.jpg|alt=|thumb|Fragment]] |
[[File:PXL 20210312 195237656.jpg|alt=|thumb|Fragment]] |
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{| class="wikitable" style="width: 60%" |
{| class="wikitable" style="width: 60%" |
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!Driver!![[Sam Pierce]] |
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|Weight Class||[[3lb Weight Class|3lb]] |
|Weight Class||[[3lb Weight Class|3lb]] |
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==Combat History== |
==Combat History== |
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[[File:PXL 20210320 135408285.jpg|thumb|Fragment Version 1]] |
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*None |
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*Version 1: |
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**Overhead Horizontal Spinner - 4200 rpm, ~120mph tip speed |
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**3s 850mAh |
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**40amp esc |
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**Brushed drive (22mm Botkits gear motor) |
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**NylonX and Nylon 645 Chassis with 2mm Carbon Fiber top and bottom plates. |
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**250mm diameter AR500 Weapon[[File:Fragment Version 2.png|thumb|Fragment Version 2]] |
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*Version 2: |
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**Overhead Horizontal Spinner - 9300 rpm, ~250mph tip speed |
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**4s 850mAh |
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**51amp esc |
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**Brushless Drive (Modified 22mm Botkits gear motor) |
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**Unibody Bridge Nylon chassis with 1.5mm aluminum top and bottom plates. |
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**220mm diameter AR500 Weapon[[File:Fragment V1.1 CAD.png|thumb|Fragment V1.1]] |
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*Version 1.1 (Back to old-reliable) |
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**Overhead Horizontal 250mm diameter - 8000 rpm, ~250mph tip speed |
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**Battery: Turnigy Graphene Panther 850mAh 4S |
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**Weapon Assembly: 1/2" low-profile steel shoulder bolt with a thrust bearing, roller bearing, thrust bearing stack |
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**Weapon Motor: Aerodrive SK3 3536 1400kv |
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**Weapon ESC: DYS Aria 70A with extra heat sinks |
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**Drive Assembly: 22mm brushless direct drive, belted back wheel. Titanium spike wheels as seen on Lynx |
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**Drive Motor: Aerodrive SK3 2118 3100kv |
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**Drive ESC Multistar 21amp |
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**Chassis: Unibody Taulman bridge nylon armor, 2mm CF top and bottom plates |
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{{Bot Stats|bot=Fragment|class=3lb}} |
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==Select Fights== |
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{{#ev:youtube|https://www.youtube.com/watch?v=qh1H8ajmCpE}} |
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{{#ev:youtube|https://www.youtube.com/watch?v=533rD3hugXo}} |
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{{#ev:youtube|https://www.youtube.com/watch?v=RUbP3ogRGDM}} |
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[[Category:3lb Bots]] |
[[Category:3lb Bots]] |
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[[Category:US Robots]] |
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[[Category:NHRL 2021]] |
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[[Category:NHRL 2022]] |
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[[Category:NHRL 2023]] |
Latest revision as of 19:26, 21 August 2024
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
Driver | Sam Pierce |
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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
- Version 1:
- Overhead Horizontal Spinner - 4200 rpm, ~120mph tip speed
- 3s 850mAh
- 40amp esc
- Brushed drive (22mm Botkits gear motor)
- NylonX and Nylon 645 Chassis with 2mm Carbon Fiber top and bottom plates.
- 250mm diameter AR500 Weapon
- 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 1.5mm aluminum top and bottom plates.
- 220mm diameter AR500 Weapon
- Version 1.1 (Back to old-reliable)
- Overhead Horizontal 250mm diameter - 8000 rpm, ~250mph tip speed
- Battery: Turnigy Graphene Panther 850mAh 4S
- Weapon Assembly: 1/2" low-profile steel shoulder bolt with a thrust bearing, roller bearing, thrust bearing stack
- Weapon Motor: Aerodrive SK3 3536 1400kv
- Weapon ESC: DYS Aria 70A with extra heat sinks
- Drive Assembly: 22mm brushless direct drive, belted back wheel. Titanium spike wheels as seen on Lynx
- Drive Motor: Aerodrive SK3 2118 3100kv
- Drive ESC Multistar 21amp
- Chassis: Unibody Taulman bridge nylon armor, 2mm CF top and bottom plates
Statistics
Info
- Rank: #195 in 3lb.
- Last 5 fights: WLLWL
- Current streak: L1 (0 KOs/KO'd)
- Longest winning streak: 2 (1 KOs)
- Longest losing streak: 2 (1 KO'd)
- Avg fight time (seconds): 121.8
Record
Year | Events | Fights | W | L | % | KOs | KO'd |
---|---|---|---|---|---|---|---|
2018-19 | |||||||
2020 | |||||||
2021 | 2 | 7 | 4 | 3 | 0.571 | 2 | 3 |
2022 | 1 | 3 | 1 | 2 | 0.333 | 1 | 1 |
2023 | 1 | 3 | 1 | 2 | 0.333 | 0 | 0 |
2024 | |||||||
All-Time | 4 | 13 | 6 | 7 | 0.462 | 3 | 4 |
Events
Date | Fought as | Reached | Place | Fights | W | L | KOs | KO'd |
---|---|---|---|---|---|---|---|---|
March 20, 2021 | Fragment | Winners 4 | 3 | 2 | 1 | 1 | 1 | |
July 24, 2021 | Fragment | Losers 4 | 4 | 2 | 2 | 1 | 2 | |
July 16, 2022 | Fragment | Elimination Round 4 | 3 | 1 | 2 | 1 | 1 | |
June 24, 2023 | Fragment | Round 2 | 3 | 1 | 2 | 0 | 0 |
Opponents
Opponent | Fights | W | L | KOs | KO'd | Last Meeting |
---|---|---|---|---|---|---|
Booooring | 1 | 1 | 0 | 1 | 0 | March 20, 2021 |
The Student | 1 | 1 | 0 | 1 | 0 | July 24, 2021 |
Revolver | 1 | 1 | 0 | 1 | 0 | July 16, 2022 |
Vespula | 1 | 1 | 0 | 0 | 0 | March 20, 2021 |
Skim | 1 | 1 | 0 | 0 | 0 | June 24, 2023 |
The Shrew | 1 | 1 | 0 | 0 | 0 | July 24, 2021 |
Silk | 1 | 0 | 1 | 0 | 1 | March 20, 2021 |
Nibblema | 1 | 0 | 1 | 0 | 1 | July 24, 2021 |
Adrift | 1 | 0 | 1 | 0 | 1 | July 24, 2021 |
Kamino | 1 | 0 | 1 | 0 | 1 | July 16, 2022 |
Chubby Unicorn | 1 | 0 | 1 | 0 | 0 | June 24, 2023 |
Cemetery Drive | 1 | 0 | 1 | 0 | 0 | June 24, 2023 |
Sombra (3lb) | 1 | 0 | 1 | 0 | 0 | July 16, 2022 |
Click "Expand" to see this table.
Full Fight History
Date | Opponent | Round | Result | By | Points | Fight Length (s) | Video |
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March 20, 2021 | Pitstop | Winners 1 | Win | Forfeit | 0.00 | ||
March 20, 2021 | Vespula | Winners 2 | Win | Judges Decision | 1.00 | 180 | https://youtu.be/qh1H8ajmCpE |
March 20, 2021 | Booooring | Winners 3 | Win | KO | 1.01 | 90 | https://youtu.be/533rD3hugXo |
March 20, 2021 | Silk | Winners 4 | Loss | KO | -1.00 | 32 | https://youtu.be/1WC4IW-Woz8?t=22315 |
March 20, 2021 | Judge's Dream | Losers 5 | Loss | Forfeit | 0.00 | https://youtu.be/RUbP3ogRGDM | |
July 24, 2021 | The Shrew | Winners 1 | Win | Judges Decision | 1.00 | 180 | https://youtu.be/YdFhoHFowgM |
July 24, 2021 | Nibblema | Winners 2 | Loss | KO | -1.06 | 114 | https://youtu.be/DtlIWhSw7yQ?t=15603 |
July 24, 2021 | Harlequin | Losers 2 | Win | Forfeit | 0.00 | ||
July 24, 2021 | The Student | Losers 3 | Win | KO | 1.00 | 34 | https://youtu.be/DtlIWhSw7yQ?t=25166 |
July 24, 2021 | Adrift | Losers 4 | Loss | KO | -1.16 | 96 | https://youtu.be/xEQmIu-H_YE |
July 16, 2022 | MilkTankette | Undefeated Round 2 | Win | Forfeit | 0.00 | ||
July 16, 2022 | Sombra (3lb) | Undefeated Round 3 | Loss | Judges Decision | -1.00 | 180 | https://youtu.be/Y7ICJDeDdfY?t=22948 |
July 16, 2022 | Revolver | Elimination Round 3 | Win | KO | 1.10 | 145 | https://youtu.be/p76hqdy44QU?t=22534 |
July 16, 2022 | Kamino | Elimination Round 4 | Loss | KO | -1.00 | 114 | https://youtu.be/Y7ICJDeDdfY?t=36292 |
June 24, 2023 | Red Hawk | Challenger | Win | Forfeit | 0.00 | 0 | |
June 24, 2023 | Chubby Unicorn | Boss | Loss | Judges Decision | -1.00 | 180 | https://www.youtube.com/live/vmbdOf7MSDs?feature=share&t=7405 |
June 24, 2023 | Skim | Round 1 | Win | Judges Decision | 1.17 | 180 | https://www.youtube.com/live/vmbdOf7MSDs?feature=share&t=21464 |
June 24, 2023 | Cemetery Drive | Round 2 | Loss | Judges Decision | -1.00 | 180 | https://www.youtube.com/live/vmbdOf7MSDs?feature=share&t=25838 |
* Forfeits before the 2024 season are not counted in a bot's W-L record. Forfeits from 2024 and on are 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.