final lecture - gatech.edu

Final Lecture

W o o d r u f f S c h o o l o f M e c h a n i c a l E n g i n e e r i n gG e o r g i a I n s t i t u t e o f T e c h n o l o g yA t l a n t a , G e o r g i a U S A

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Understand the design review and final competition logistics

Develop strategy for design review presentation

Understand final competition scoring/disqualification rules

Learning Objectives

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• Did your team design a cool mechanism for your ME2110 robotic system? We are looking to add interesting/useful mechanisms to augment laser cutting training and for future ME2110 robots.

• 3 teams will be winners of this design challenge and team members will be recognized and receive a prize for their designs

• Examples include drive components and translation/rotation mechanisms (e.g., articulating hinges, pin/slot linkages, etc.)

• Component/subassembly must be able to be laser cut out of 0.25" MDF

• Submissions will be evaluated based on design usefulness, material utilization and fabrication time

• Submit designs at https://formfaca.de/sm/Yj3sb7hbb by 23 April at 5PM

Mechanism design challenge

https://formfaca.de/sm/Yj3sb7hbb

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Schedule and Locations - Friday 16 April*

GTMI Building

Design Review: Gatherly virtual meeting (students, judges)• TBD – Virtual venue opens (available for testing)• 445PM – All students at assigned locations• 500PM – Design review judging starts• 615PM – Design review judging ends

Final Competition: GTMI Atrium (students only) and YouTube broadcast (all attendees)• 635PM – Design review awards announced• 645PM – First competition rounds• 900PM – End of competition rounds• 900PM – Final competition winners announced

* Open studio is cancelled on 16 April so ME2110 staff can setup for final competition

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Design review• Time/Date: 430-630PM on Friday April 16th 2021• Attendance: all students must attend and participate• Grading: accounts for 5% of overall course grade• Presentation items: system design, fabrication,

operation, performance• Evaluators: industry sponsors, faculty, grad students• Evaluation categories:

• Design ingenuity (design creativity, design approach, design performance)

• Fabrication (methods, cost, material utilization)• Presentation (oral communication, visual

communication, presentation style)

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Design reviewGuidelines• Gatherly is currently supported on Google Chrome

and Firefox. Microsoft Edge may work, but is not officially supported.

• Use camera/microphone for event• Virtual space will be open several times week of 16

April and before event for practice• If you would like dedicated space/room on campus

(MRDC/GTMI/Love), let your studio TA know and we will coordinate

Gatherly virtual space layout• Ground: Judges briefing, main help desk• Floor 1: Teams starting with A1-, A2-• Floor 2: Teams starting with A3-, A4-• Floor 3: Teams starting with A5-, A6-, A7-• Floor 4: Teams starting with A8-, A9-• Floor 5: Teams starting with A10-, A11- Move between floors Leave event

Team table/room

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Design review

Gatherly in action: https://www.youtube.com/watch?v=cXTtuzxqSB4

Camera share

Screen share

Event map navigation

Event map

Floors – tables for teamsElevators – move to floors

Gatherly environment

https://www.youtube.com/watch?v=cXTtuzxqSB4

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Some practical advice• 3-5 minutes target duration – PRACTICE!• Draw attention, capture, and close• Involve the team!• Think about how to best display your device• Limit discussion of design tools (HOQ, etc.),

focus on making an impact on the rubric categories

• Pictures and videos help• Themes are OK, Keep it tasteful• Use PPT, but keep it short! Consider a one- or

two-slide approach

Design review

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Design review

Major items:

Rubric-related suggestions

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• Recall there is a related deliverable for the final report. It may be useful to record this video during any practice sessions your team has. From the final report description:

Design review

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Final competition Exit to Hemphill/Ferst

Exit to GTMI Dock / MRDCRemain on 2nd and 3rd floor lobbies until called onto the atrium floor by ME2110 staff

Bridge to MRDC

3rd floor lobby

2nd floor lobby

Atrium floor

GTMI Atrium Atrium floorStaircase

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Final competitionTeam guidelines• Broadcast: Will be broadcast and recorded on YouTube with

video/audio, please be cautious with language and behavior• IDEA Lab: Will be open throughout the competition to facilitate

access to robot storage, no tracks available for test• Attendance:

• 1 student/team required, but all team members welcome to join (optional)• Maximum of 2 students/team can setup system, others can only observe

• Distancing: All attendees must adhere to 6-ft distancing guidelines and stand in marked locations during the event

• Track judges: Judge rulings are final. No retrials are possible. Recording will allow discussion post-competition.

• Kit return: All mechatronics kit items and borrowed mounts must be returned the following week!!!

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Final competitionTime Track Team Time Track Team

6:45

1 Team 1-1

7:53

1 Team 6-32 Team 1-2 2 Team 6-43 Team 1-3 3 Team 7-14 Team 1-4 4 Team 7-25 Team 1-5 5 Team 7-36 Team 2-1 6 Team 7-4

7:02

1 Team 2-2

8:10


7:19

1 Team 3-4

8:27


7:36

1 Team 5-1

8:44


Expected timeline• Team only able to enter IDEA Lab

20 mins before GTMI time slot• Be present in GTMI building 5

minutes before time slot using bridge entrance with MRDC

• Wait on 2nd floor/3rd floor lobbies until ME2110 staff calls your time slot to Atrium floor using the stairs

• 1-minute to situate at track• 15 minutes to run 3 times• 1-minute time to clear track• Leave GTMI via dock or Ferst Dr

exit, can return robots to IDEA Lab

Schedule and GTMI atrium layout

Dock

Ferst Dr

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Task pointsCompetition arena (jumpshot/pass)

Top view

Side view

Competition arena (dunk)Top view

Side view* 1 jumpshot item per trial* 1 pass item per trial* 2 moneyball items and 1 dunk item per trial

Competition items

Task Competition Point Value

Launch 1 (successful deployment)

Pass 3 points/item (hits target zone)1 points/item (leaves starting zone)

Jumpshot8 points/item (lands in target zone)

3 points/item (hit target zone but not in target zone)1 points/item (leaves starting zone)

Dunk

6 points/item (green zone)5 points/ item (yellow zone)4 points/item (orange zone)

3 points/item (red zone)1 points per item (not in a zone but off of PVC stand)

Money balls count 2x points per zone

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Disqualification rules• Disqualifications result in zero points for trial (1 run of team’s device)• Before the start of a round, your device must be set in a condition such

that it is: (1) static, (2) fully within the starting zone, (3) below 18” height• System must be able to be setup by a maximum of 2 team members• System must be setup and ready to go within 3 minutes• System must be initiated by push button switch and autonomously

operated after start• Each button start push will count as a trial, no retrials are allowed• System must be deactivated and static at the end of the 1-min round• Power sources limited to five mousetraps, controller box, the mechatronics

kit components, 5 rubber bands, and gravity• System/team cannot damage arena or competition items• Limited to $100 final bill of material cost

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Scoring rulesLaunch task• Teams can load stock items labeled in the starting zone in Figure 1 and position system in starting zone before start• System must have a perceptible motion from an actuator after button start to score

Pass task• Crossing foul line (any intersection of line with system) results in no points scored• Items hitting the target zone will score maximum points• Items completely leaving the starting zone but not hitting the target zone or resting in it will score minimal points

Shooting task• Crossing foul line (any intersection of line with system) results in no points scored• Items resting in the target zone container scores maximum points• Items hitting the target zone but not resting in it will score intermediate points• Items completely leaving the starting zone but not hitting the target zone or resting in it will score minimal points

Dunk task• Money balls must be picked up by system autonomously• Items resting in a container score points for associated container color• Items resting on container top lip score points for lower scoring container color• Items that are removed from the PVC stands will count for minimal points

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Competition scoringDesign Sprint 2 and Final Competition• All tasks• Grading based on the average performance in 3

monitored trials• Max trial score:

• Launch: launching the system (1 point)• Pass: hitting target zone 1 with a pass (3

points)• Jumpshot: landing a stock item in target

zone 1 (8 points)• Dunk: placing 1 regular stock item in an

orange container (4 points)• Dunk: placing 1 moneyball stock item in a

red container (6 points)• Maximum grade is 22 points/trial

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Competition time slots• See updated project description (4/6) regarding timing of your time slots• 2 people maximum can participate in setting up the system. No other team members

can touch competition items or the system, though all are allowed (not required) to be present at the track.

• The 15-minute slot is broken into three 5-minute rounds• In each 5-minute round, there are 3 minutes to setup, 1 minute to run, 1 minute to

reset/clear (General Info item #2).• Teams may run their device earlier than 3 minutes if they are ready to go. The 3-

minute setup time for the next round will be unaffected by going early (i.e., they do not get extra time).

• If they are unready to go at 3 minutes after the start of a round, that will result in a DQ (DQ rule #4).

• Scoring will occur immediately after the device is at rest. This will likely take around 1 minute. If the device moves within that time frame, then it may be DQ'd (DQ rule #7).

• Teams do not have to pick up their system off of the starting zone between rounds. They can leave the robots plugged in and simply reset the mechanisms to get ready for the next round.

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FAQ - General1. For the launch, must the "perceptible motion from an actuator after button starts to score" be a separate

movement that doesn't contribute to play, or can it be completed during any task, e.g. by winding back a springto launch a stock item? Any perceptible motion will count. It can be a motion towards completing a task.

2. The robot must be "deactivated and static". Does that mean, for example, mouse traps cannot be "cocked"before the round starts? The mouse traps can be set before the round starts. However, if it goes off before theround starts, that is a DQ.

3. For the dunking task, what does it mean that the money ball must be picked up autonomously? It just meansthe balls must be picked up by the robot. It can be picked up however your team prefers.

4. At the end of the time period, is it okay if a stock item is still in-motion as long as the system is deactivated? Itis okay if a stock item is in motion. However, if the stock item does something right and earns points after theround is over, those points will not count. The points that count are ones earned during the 1 minute round.

5. Can the pneumatic air be released into the atmosphere or does it have to be contained in the pneumaticsystem? The pneumatic air will be allowed to be released directly into the atmosphere. The air can be used topush the ping pong balls.

6. Do any extended arms over the array of cups need to come back to the robot during the Shutdown phase? Orcan they stay extended? The extended arms can stay extended.

7. Can we use mouse traps to hit the pvc pipes? Yes, but ping pong balls are fragile. If a ping pong ball breaks,that would result in a DQ.

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FAQ - Scoring1. Can we score points for passing by getting the ball into the bucket? No, the passing points can only be scored if the

ball hits the outside of the bucket.2. Is the robot allowed to contact the Target Zone 2 (Dunk bucket)? Or must the dunk be completed with a shot

through the air? The robot is allowed to contact the target zone. However, if the target zone is damaged or moved inany way, it will result in a DQ.

3. If there is a tie for the final competition, how will the winner be determined? In the case of a tie of the uncappedfinal competition scores, the winner of the final competition will be determined based on the sum of the uncappedsprint 1 and sprint 2 scores. The robot that has the higher overall sprint 1 and sprint 2 scores will be the winner.

4. Does the dunk task score points, “Items that are removed from the PVC stands will count for minimal points,” justby knocking over the PVC pipe? Yes, the ping pong ball does NOT have to be held within the robot itself. Justgetting the ping pong ball off the PVC pipe will earn minimum points.

5. For the pass task, can we earn points if the ping pong ball is rolled/bounced on the floor, or does it need to beairborne until contact? Yes, you will earn points pass points as long as the ping pong ball touches the outside of thebucket.

6. For the dunk task, if the balls on the PVC are knocked off and bounce into cups, does this count for points? Yes, thiscounts for points as long as the ball ends up in a cup.

7. For the jumpshot task, if the ball bounces into the bucket, does this count for points? Yes, this counts for points aslong as the ball ends up in a bucket.

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FAQ - Track1. Will the PVC pipes be secured to the floor or be free-standing? Will the plastic cups be secured to the hexagonal targets or

be free-standing? The PVC pipe will be free-standing and can be knocked down. The plastic cups are glued to the targetsand cannot be knocked down. If the cups are knocked down, that would be considered damaging the track and wouldresult in a disqualification.

2. Will bumping or knocking over the money ball stand (PVC pipe) that holds the money ball be considered "damaging thearena" and will it result in a disqualification for that trial? No, knocking over the PVC pipe will not be considered“damaging the arena” and will not result in a disqualification for that trial.

3. Will the robot bumping into the target and moving the target be “damaging the arena” and will it result in adisqualification for that trial? Yes, moving the target with your robot will result in a disqualification. Also, if your robotbumps into the target and a cup falls off, that is also damaging the arena and will also result in a disqualification. If yourrobot simply touches the cups without the target moving or a cup falling off, that will not be a DQ.

4. Will the robot pushing a PVC pipe into the target and moving the target be “damaging the arena” and will it result in adisqualification for that trial? No, this will not be a DQ for Sprint 2 and the final competition.

5. If a PVC pipe is knocked down onto the target zone and the target zone moves as a result, will that result in adisqualification? No, that will NOT be a DQ.

6. Does the target dunk zone rotate? If it does, how quickly does it rotate? No, the target dunk zone does not rotate.7. Are the money balls centered (both 5 inches from the yellow ball) or do we also not know a Y of their location in addition

to the unknown X? The money balls are centered 5 in on each side from the centerline (y-direction) of the track. The onlyunknown is the x-direction.

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To learn:• fundamental procedures for solving

engineering design problems• the essential details of analyzing,

synthesizing, and implementing design solutions with flexibility, adaptability, and creativity

• the techniques which allow an engineer to tackle new, unsolved, open-ended problems

• by doing through team and individual projects and assignments

Course Objectives

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This course is about:• understanding alternatives• problem solving• organization• writing• presenting• fabrication

Professionalism• projects• reports• attendance

ME2110: Creative Decisions and Design

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Always looking out for new team members, reach out if interested!

ME2110: Creative Decisions and Design

final lecture - gatech.edu

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