Cathi

Cathi
Year Of Creation	2013-2014
Versions
Current Version	2.1
Update Year	2014-2015
Information and Statistics
Weight Class	FeatherWeight
Weapon Class	Ring Spinner
Wins/Losses	0/5
("Temporary")	("Temporary")
("Temporary")	("Temporary")

Cathii is a 30 pound ring spinner robot.  Her ring is approximetly 15 pounds and spins around 2500 rpm at top speed.  Cathii has be undergoing continual improvements every year since her first competition in 2014.

Competitions

Motorama 2014

• Results:
  • Bracket Style:
    • Loss vs Pitter Patter
    • Loss vs Candy Paint and Gold Teeth

Motorama 2015

• Results:
  • Bracket Style:
    • Loss vs Pitter Patter
    • Loss vs Candy Paint and Gold Teeth
• Results:
  • Bracket Style:
    • Loss vs Drum Thing Else
    • Loss vs Triggo
  • Loss in Featherweight Rumble 

Motorama 2016

• Results:
  • Bracket Style:
    • Loss vs megatRON
    • Loss vs The Robot Formerly Known as Drumthing
    • Win vs Gracious Pipefessionalism

Version

Cathi V1.0

Desgined By: Max Carlson

Drive Motors	RS-545
Drive Motor Controllers	Ragebridge 1.0
Weapon Motor	NTM 5050
Weapon Motor Controllers	TURNIGY K-Force 120A-HV OPTO
Reciever	Turnigy
Remote Control	Turnigy
Battery	Turnigy Nanotech 8s 5000mAh
(OTHER:)	(OTHER:)

Good aspects:

• The weapon spun up a few time showing the design is feasable.  Overall, the design is very well done, however many small improvements must be done.

Drive Motors are over volted

• Weapon ESCs burned up
• Weapon Belts would bind and stall out the weapon motors
• Overall weight was heavier than the estimated weight(weapon aluminum inserts were removed to account for this)

Changes/Improvements:

• Decrease the main robot voltage
• Look into new weapon ESCs
• Redesign weapon motor system
• Use more powerful drive motors

Cathi V1.1

Drive Motors	RS 550
Drive Motor Controllers	RageBridge 1.0
Weapon Motor	NTM 5050
Weapon Motor Controllers	TURNIGY K-Force 120A-HV OPTO
Reciever	Turnigy
Remote Control	Turnigy
Battery	Turnigy Nanotech 6s 5000mAh
(OTHER:)	(OTHER:)

Good aspects:

• Very little changes occured in this second iteration.  The majority of parts were reused, with some being altered.

Problems:

• The RS-550s performed better than the RS-545s, but still burnt up.
• The Weapon motor controllers continued to burn up.
• The inner pulley diameters were decreased to keep the belts from binding.  This resulted in under tensioned belts which failed to transmit the force of the motors.

Cathi V2.1

Designed By: Ethan Bisgaard

Drive Motors	RS-550
Drive Motor Controllers	RageBridge 1.0
Weapon Motor	NTM 50-50
Weapon Motor Controllers	Toro TS 150a
Reciever	Hobbyking
Remote Control	Hobbyking
Battery	Turnigy Nanotech 6s 5000mAh
(OTHER:)	(OTHER:)

Notes:

Cathi(1+i) used smokescreen. Twice.*