IMechE HK Branch Greater China Design Competition


8th GCDC Energy Relay (2018/19) at University of Macau (tentative on 23 and 24 March 2019) 

The University of Macau New Campus

Frequently asked questions (FAQ)

This section lists all questions and answers for the teams participating in the 8th Greater China Design Competition

Q1   Should the device place in anywhere inside the trigger-zone? Or not? For example, is the device must be located after the transition line?

A1    All devices should place in anywhere inside the trigger-zone and the devices must be located after the transition line 1,2,3 respectively. The first device should be located before the starting line.

Q2.         Is the chemical battery (Li-ion) and hydrogen fuel cell count as two different energy source?

A2    Chemical battery (Li-ion) and hydrogen fuel cell are counted as two different energy sources. However, the technology, safety and immigration concerns should be considered.

Q3.  Can more than one energy sources be used in a car? For example, solar is for driving the device and electrical energy is for controlling, steering, and triggering the car.

A3    More than 1 energy sources can be used in your devices. However, energy sources for driving those 4 different moving devices are counted for different energy sources in the scoring formula. For example, solar is for driving and steering the device and electrical energy is for controlling and triggering the car, which is counted as 1 energy source in scoring.

Before competition, all devices would be examined for verifying the installed energy sources. For example, solar panel should be verified that it is able to generate electricity to the installed battery as storage.

Q4.         Can leave some parts of the device on the lane during the competition? Such as trigger mechanism would leave on the road after the trigger and the moving part goes separately.

A4    The triggering device can leave on the lane and the moving part goes separately during each team 120s competition time. After 120s competition time, teams must then pick up all devices.

Q5.  What is the meaning of the energy source should be “on board”? It stated in the first document, section project task design.

A5    The energy source should be installed inside the moving devices. (On Board)

Q6.  What if the device run over the game field but return to the lane and trigger the second device?

A6    If the device runs over the game field but returns to the lane and triggers the second device, that device cannot be counted as one of the devices initiated in the scoring formula and the second device can conduct the game as usual.

Q6i. What if the device run over the game field after it passes through the lane, any penalty for going out of the lane?

A6i   No penalty

Q7.  When can the second device start to move? When the first device just touch the trigger zone or the whole device passes through transition line?

A7    The second device must be initiated by the prior device within trigger zone.

Q8.  Are the following considered distinct power sources? What is the largest allowable pressure for compressed air power source?

(a) Lithium-ion rechargeable battery :Battery charged by 220V AC supply, driving a DC motor

(b) Super capacitor: charged by lithium-ion rechargeable battery. Then it is disconnected to drive a DC motor during the race

(c) Compressed Air :Compressed Air from an electric compressor

(d) Rubber band: Pre-loaded rubber band driven car

(e) Spring: Pre-loaded Spring driven car

A8:   (a),(b) : Same power source

(d),(e): Same power source

No limitation on largest allowable pressure for the compressed air power source.

CAUTION: Safety and immigration concern must be considered.

Q9.  Is there limitation to the triggering devices? (i.e size, weight, electronics)

If a triggering device is used for a capacitor-driven car, can the trigger contain a battery to

charge the capacitor while the car is connected to the trigger, but is disconnected once the

car is triggered?

A9:   No limitation on triggering devices.

The triggering device can contain a battery to charge up the super capacitor on car inside the triggering area shown below.

Q10.        How far a car has to go before it is considered out of the lane? (i.e. air space of the car outside of the banner, one wheel outside of the banner or the whole car outside of the banner)

When can the device run over the game field? (after the next device is triggered or after the

second device leave the transition zone)

A10: Any parts of the wheels outside the banner is counted as out of the lane.

After the next device is triggered, the device can run over the game field.

Game field track layout


7th GCDC Unmanned Robots for Relief (2017/18) held at South China University of Technology Guangzhou College on 24 and 25 March 2018

Champion: PolyU

On behalf of the Institution of Mechanical Engineers (IMechE) Hong Kong branch, a worldwide non-profit professional organization for mechanical engineers, we take pleasure to announce the 7th Greater China Design Competition (7th GCDC) to be held on 24-28 March 2018.
As you may be aware, the 7th GCDC, which bundles the highlight event of the IMechE and Universities, will be our signature initiative in 2017/18.  It is an university student design competition among Hong Kong, Guangzhou and Macau universities.  The aim is to providing a platform for our engineering students to demonstrate their engineering knowledge, while in parallel strengthen their presentation skills by designing an innovative prototype design on the topics range from environmental to social issues. The topics for the past four years GCDCs are Automatic Material Sorter (2011/12), Potential Energy Car (2012/13), Material Transporter (2013/14), Rocks Collector (2014/15), Remote Inspection Robot (2015/16) and Mine Industry Handling Robot (2016/17).
This is particularly important among the young generation, whose attraction to the professions is critical in ensuring continuous engineering excellence to help drive our world forward.  Engineering is much more relevant to our daily lives than perhaps it is given credit for.  Considering the macro and local issues faced by the community, GCDC will focus on energy, transport and the environment, exploring and showcasing possible, often fun and innovative engineering solutions.


"A well-rounded Disaster Relief Robot" 3D Model, Drawings, Painting Competition


由香港中華基督教青年會及英國機械工程師學會(香港分部) 合辦之『全能救災機械人』繪畫及環保3D模型設計比賽已經順利舉行。大會共收到來自多間小學的二百多份參賽作品。作品水準之高得見參賽者均用心創作,亦令評審團嘆為觀止。評審團已於2018年6月19日(星期二)選出各組別之冠、亞、季軍及優異作品,得獎名單如下:



如有任何查詢,歡迎致電2413 3111與香港中華基督教青年會「IFocus」工作小組成員何先生或3153 4182英國機械工程師學會(香港分部)職員查詢。

繪畫比賽: 小一至小三學生

姓名:袁霆軒 同學  年級:一年級

姓名:李晉賢 同學  年級:3D

姓名:鄧煒瑨 同學  年級:2E

姓名:謝茵澄 同學  年級:2D

姓名:林心瑜 同學  年級:3D
環保3D 模型設計: 小四至小六學生

姓名:何梓晹 同學 年級:五年級

姓名:敖景然 同學 年級:四年級

姓名:彭健韜 同學 年級:5D

姓名:何耀軒 同學 年級:5B

姓名:蔡詠茹 同學 年級:5D


6th GCDC Mine Industry Handling Robot (2016/17) at HKUST

Champion: CUHK and HKUST
The 6th GCDC held at Hong Kong University of Science and Technology 25-26 March 2017

The 6th GCDC held at Hong Kong University of Science and Technology 25-26 March 2017


5th GCDC Remote Inspection Robot (2015/16) at GZSCUT
Champion: HKU
The 5th GCDC held at GZSCUT on 19-20 March 2016


4th GCDC Rocks Collector (2014/15) at GZSCUT

Champion: CUHK
4th GCDC held on 23-24 March 2015 at Guangzhou South China University of Technology (GZSCUT)


3rd GCDC Material Transporter (2013/14) at GZSCUT
Champion: CUHK
The 3rd GCDC held at GZSCUT on 21-22 March 2014


2nd GCDC Potential Energy Car (2012/13) at GZSCUT

Champion: HKUST

YouTube Video
2th GCDC held on 23-24 March 2013 at Guangzhou South China University of Technology (GZSCUT)


1st GCDC Automatic Material Sorter (2011/12) at GZSCUT
Champion: CUHK

YouTube Video

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