Race Day:December 9, 2019; 1:00 – 2:30 in

Building 13 LobbyReview/Report Dec 11

2.810 CAD-CAMCah RACE

Cah is Bostonian for automobile, as in: Pahk Yah Cah in Hahvahd Yahd

2

Key dates for project

Available at 2.810 Website

Sept 16 - Teams finalized

Sept 30 - Kits assembled

Week of Sept 30 - Preliminary design concept review

(schedule a time for group to meet with Paul)

Week of Oct 14 - Injection mold wheels

October 21 - Chassis drawings due

(waterjet file and dimensioned drawing)

Week of Oct 28 - Production chassis cut on waterjet

November 6 - Oral Progress Reports

December 9 - Contest

December11 - Evaluation & Reports

5 Teams

Team A

Team B

Team C

Team D

Team E

Final Report: to document car details and team, drawings & pics

List of Parts

• Wheels - to injection mold• Tires – over molded• Front steering parts• Rear axle parts, axle, gears• Motor• Controller• Batteries X 2• Battery Charger• Transponder• Materials, small budget

Parts are in your bins

Rules• Max size: 11” X 12” X 11”• Thermoformed complete shell part, one with grid• Clean trim of shell• 3D printing only for prototypes and differential

gears.• Mount and test transponder• Label cars clearly: e.g. A-2• Everybody drives (8 turns)• Do not interfere with other cars

Example car

Design Issues: control!

steering

Battery pack: alignment

Motor mountGear alignment

Rear suspension

Front suspension

Wheel protection

Antenna & electrical connection Assembly time

2.810 Teams:Issues

• Performance of the teams; “bonus review”• Different skill levels

– Guiding– Helping

• Grading• Dropping the class…• Finish assembly with time to test

Grading• Well conceived design

• Well executed

• Performed well

• Team functioned well

• Creative?

• Documentation

Grading

• Quiz 1 30%• Quiz 2 30%• Project 30% (team grade)• Participation 10%• Total 100%

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Schedule for race day: Dec 9 1:00 – 2:30 Lobby Building 13

1. Listen to Instructions, and then win race

2. Receive a coveted award if you come in

1st, 2nd or 3rd, eat healthy junk food

3. Design Review Dec 11

4. Hand in final report Dec 11

RACE TRACK- 4 pits

8 cars but 7 LOOPSPIT

Car #1

Car #2

PIT

Car #1

Car #2

PIT

Car #1

Car #2

PIT

Car #7

Car #8

Previous Records• Winning Car 2018 (single elimination)

– 2 minutes, 15 seconds– Seungchan Ryu, Kuan Qiao, Tae Joong Park,

Sangwoon Kim

• All-Time Record (double elimination)– 1 minute, 18 seconds (2002) – Craig Forest, Stan Jurga, Hal Lieber, Devin

McCombie, John Penney, Phil Shaltis 

Competition Format - up to 8 teams

Heat 1 Heat 2

FINALElimination

Race

1,

1,

2,32, 3

1, 2

Heat 1

To final race

To elimination

race

Team Record

1st

2nd

3rd

4th Out

Heat 2

To final race

To elimination

race

Team Record

1st

2nd

3rd

4th Out

Elimination Race

To the FINAL

OUT

Team Time

1st

2nd

3rd

4th

FINAL Race

Team Record

1st

2nd

3rd

4th

Friends can help

• Light Duty

– Lap counting

– Backup Timing

– Moral support

2.810 CAD-CAM Cah* Race 2019First Place

Presented to:

name group

this 10th day of December in the year 2018 AD by the

Honorable T. G. Gutowski

Honorable Paul Carson

Design • Manufacture • Race

* “Cah” is Bostonian for automobile

2.810 CAD-CAM Cah* Race 2019Second Place

Presented to:

name group

this 10th day of December in the year 2018 AD by the

Honorable T. G. Gutowski

Honorable Paul Carson

Design • Manufacture • Race

* “Cah” is Bostonian for automobile

2.810 CAD-CAM Cah* Race 2019Third Place

Presented to:

name group

this 10th day of December in the year 2018 AD by the

Honorable T. G. Gutowski

Honorable Paul Carson

Design • Manufacture • Race

* “Cah” is Bostonian for automobile

2.810 CAD-CAM Cah* Race 2019

Good Luck!