Groovi

Groovi
Year Of Creation	2018-2019
Versions
Current Version	2.0
Wins/Losses	2/6
Information and Statistics
Weight Class	BeetleWeight
Weapon Class	Drum Spinner
Combined Wins/Losses	2/6

Welcome to GROOVI! This is a drum spinner 3lb robot, we finished it at 2am the night before Motorama :)

• We manufactured our second edition Groovii over the course of the two weeks around spring break
  • This time we finished at 11 pm before the 20th Anniversary!

Competitions

Motorama 2019

• Results: 0/2
  • Bracket Style: Double Elimination
    • Loss vs tHe liD
      • (No. 1 Nemesis)
      • (we don't talk about this match...we just got swallowed))
    • Loss vs Deadly Princess
      • (No. 2 Nemesis)
      • (a beater bar, took a chunk out of our drum, one of our wheels was out for this match, Deadly Princess had a way better paint job :C))

RoboJackets 20th Anniversary Competition

• Results: 2/4
  • Bracket Style: Round Robin - Four per Pool
    • [htpp:putwhenwegetthelink.com]
      • (Qualifying Match 1)
      • (Win due to forfeit against nonexistent opponent)
      • (Qualifying Match 2)
      • (Loss to Furi due to weapon motor not spinning up, drive train fully functional, but Furi got one hit in before his drum detached)
      • (Qualifying Match 3)
      • (Win over Doori by running into them at ramming speed and generally being aggressively annoying)
      • (Playoffs Match 1)
      • (Loss to Hypnotik, got torn apart by high schoolers but hey at least we had a better paint job this time, weapon wouldn't spin up and they trapped us in a corner :C)

Versions

Groovi

Created by: (Names of Builders/Group Members of aforementioned version of bot)

Drive Motors	DYS BE1806 2300KV Motors
Drive Motor Gearboxes	KITBOTS 1000rpm Gearmotor Gearboxes
Drive Motor Controllers	DYS 20A Micro Opto Multi-rotor ESC
Weapon Motor	(Turnigy 2836-3700)
Weapon Motor Controllers	(Turnigy PLUSH-40A)
Receiver	Turnigy T6A-V2 AFHDS 2.4GHz 6Ch Receiver V2
Remote Control	Turnigy T6A-V2 AFHDS 2.4GHz 6Ch Transmitter V2
Battery	Turnigy Nano-Tech 1000mAh 3s 45~90c LiPo Pack

Problems

• Groovi - Motorama Edition
  • Nonfunctional drive motor
  • Locktight issues/pin in the drive motor was too short
  • Was barely enough room for electronics
  • Some holes were too small
  • Belt was too loose

• Groovii - RoboJackets 20th Anniversary Edition
  • Belt was too tight, caused too much torque on the weapon motor and prevented its successful spinup
    • Except for that one time in front of the judges after we heat-gunned it
      • And promptly decided not to heat-gun it again before our playoffs match (big mistake)
  • Similar locktight issues to Motorama involving the pinion gear inside the drive motors
  • Wheel kept falling off because of a warped hub
  • Bearings were warped, which made it a lot harder for the drum to turn as smoothly
  • Overweight by 0.04 lb
    • Had to drill speed holes and eventually were forced to remove one of the middle steel teeth to avoid disqualification
  • Paint job on armor went all over the arena, but at least the top and bottom survived!

Good Aspects

• Groovi - Motorama Edition
  • Drum was very solid
  • Was underweight
  • Armor was effective
  • Used hella electrical tape to fix switch (was functional at Motorama)

• Groovii - RoboJackets 20th Anniversary Edition
  • MYSTERY MACHINE MAKEOVER
    • ALL the complements
  • Slightly larger chassis meant we had more room for electronics
  • Drum still very solid
  • Drive train worked well in all of our matches
  • Armor did its job
    • RIP Paint Job 2019
  • ESCs worked perfectly

Changes/Improvements

• Groovi - Motorama Edition
  • Recalculate belt size, order more backups
  • Make side plates longer to accommodate electronics
  • Fix top and bottom plate to accommodate new side plates
  • Make a proper cutout for switch
  • New drive motor
  • Fix holes in motor mount, side plates, (front plate if possible?)
  • Push pin in drive motors further

• Groovii - RoboJackets 20th Anniversary Edition
  • Recalculate belt size, order more backups
  • Reduce weight without taking out the tooth by cutting out holes in the top/bottom plates
  • Better drive motors
  • Replace bearings
  • No need for skid screws

Notes:

(We lost to a lid :C)

(Name inspo: Scooby Doo, Sam's bucket hat)

(Grace Kahn, Cody Page, Judea Britt, Sam Bass, Seth Daly, Paulina Schuler, Hannah Lee)