1. Final Presentation Monday, April 18, 2016
VEX U Robotics
Final Presentation
Monday, April 18, 2016
Dr. Chung-Hao Chen
Dr. Gene Hou
Allan Cahill
Timothy Clarke
Michael Darnell
Andrew Dearhart
Darryl Sampson
Richard Stinson

2. Competition Background
Play on 12’ square field to pick up game objects (4” balls)
Can score by launching game pieces into a 6” low goal or a 36” high goal
Each team gets 32 game objects they can hand load (driver loads)
Normal tournament matches consist of 45 seconds of autonomous and 75 seconds of driver control
Skills Challenge is a worldwide leader board divided into two types
Robot Skills Challenge is 1 minute of driver control
Programming Skills Challenge is 1 minute of autonomous

3. Design Constraints
2 robots; large robot must fit in 24” cube and small robot must fit in 15” cube
Maximum of 12 DC motors per robot
Unlimited 3D printed parts as long as each part fits with a 6”x6”x3” volume
Must use the VEX Cortex Microcontroller
Must use official VEX parts, or parts identical to them
Only exceptions are 3D printed parts and extra sensors

4. Project Goals Focus on autonomous points
Aim to excel in programming skills challenge by partnering with an ECE team
Large robot needs to make goals from anywhere on the field
Small robot needs to be able to make goals from about mid-field

5. Competition Small Robot
Fast, mobile drive, capable of going at speeds of 3 mph
2-part Intake
Passive rubber band front intake
Vertical chain intake leading to flywheel
Single flywheel
Capable of rotating at 3600 RPM, launching game objects at 35 mph

7. Competition Large Robot
Standard drive with Omni-Wheels to help with turning
2-part intake
Rubber band intake to pick up initial stacks
Regulated intake that feeds objects to launchers through a 3D printed “barrel”
Dual flywheel launcher mounted at a 45-degree angle
Capable of rotating at 2160 RPM, launching game objects at 26 mph
A sliding, folding, pivoting ramp used to lift small robot

9. Skills Challenge Small Robot
Linear Puncher (Spiral Cam)
Drive built around cam, perpendicular to launcher
The only robot in the world to score 64/64 driver
loads for the programming skills challenge
Slight “hopping” issue

11. Skills Challenge Large Robot
Current plan is to use Kobe 2.0 (left) as the large robot for skills
Can currently score more in autonomous than any previous competition robot built
Backup plan is to construct a non-driving, self-lifting robot to latch on to Cam Newton (right)

12. Competition Results
Competed at Purdue University at the Purdue VEX U Winter Vortex Qualifier
Finished 4th in qualifying rounds and eliminated in semifinals of tournament
Based off of algorithm scores, finished 3rd in tournament
Participated in the CSM VEX U Skills Challenge, and placed
16th in Robot Skills worldwide
1st in Programming Skills worldwide
Qualified for and attending the VEX U World Championships through the programming skills ranking

13. Where we Stand
Posted a score of 321 at the College of Southern Maryland Skills Challenge on March 5th
Hold a 1st place position on the programming skills global rankings leading to the World Championships
Top three teams from both programming and robot skills challenges received an invitation to Worlds March 7th
Attending the World Championships April 19 – 24 in Louisville, Kentucky

15. Questions?