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ENGG1015 Tutorial

Information and Hints for the ProjectNo class (Supplementary notes)Learning Objectives

Give a draft plan for the projectIdentify components that can be used in you project (Build a Rube Goldberg Machine)

NewsMid term presentationTA consultationLab access

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Hints for the project

1. Be Safe!2. Save your time and effort3. Meet the min. requirement

Min no. of stages: 4-5 stages in seriesLimited stock, limited componentsStart: Press the button; End: Pop up the balloon

4. Robust design5. Try something crazy/creative

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Hints for the project

Clear alignmentCome up a project theme

Christmas? Theme Park? Letter World?Set up a common goal

You want a A/C/E? You want to have fund?Set up a group working session

Make everyone will contributeSet up schedule and milestone

Practical?Find out the allowed resources

(Electrical) components, time, skills, number of stagesThink and evaluate some actions/mechanisms

Robust? Fancy? Difficult in implementation? Difficult to link to other mechanisms?Any (easier) alternatives if the mechanisms fail?

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Questions for inspirations

(4W1H) Who/When/What/Why/HowHow to push/pull/move/rotate the object?How to trigger the switch/sensor?How to do counting?How to do switching?How to pop up the balloon?How to use the fan?

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Lab Access

Location: CYC Bld. Rm. LG 205Time: 0900 – 2300Login Password: Four digit CSS password

Shown in the UNIX account information sheetCan be checked through HKUEEE webmail system https://ip-1102.eee.hku.hk/horde/imp/

Login “My Account” “My Account” CSS P/WConsult HKUEEE Computer Service Group (CYC 804) for HKUEEE webmail login problem

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Step 1Step 2

Step 3

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Electrical switches

On/Off switchButton for Stage 1 (Required)

Two terminals for lighting and two terminals for switchingNO

Reed switchNon-contact switch

Operated by magnetic fluxNC/NO

Touch switchContact switch

Operated by pressingNC/NO

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Electrical switches

Solid state relay switchCircuit isolationControlled by input PENO

Double pole, double throw (DPDT) relay

Timer: different time scale / different switching modeRelay: circuit isolationControlled by input PENeed a socketNC/NO

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Electrical sensors

QTI sensorBlocking sensorNeed a connection cable

Rotation VRRotation sensor

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Electrical drivers

SpeakerSound/vibration generation

SolenoidMagnetic controlled valveSwitch off normally

Cooling fanWind movement

MotorRotation movement / moving

Lamp / LEDLighting effectConnect LED with a resistor

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Jointing

Board12"x48“ (Base), 2"x48“, 1"x48"

Bracket (Angle/Straight)Strong fix joint between boardsDifferent size

HingeMovable joint between boards

Cable tie and cable mountWeak fix joint betweencomponents

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Miscellaneous

Terminal boardConnecting between wires and electrical components

Metal ballStages triggering

Metal pulley, sloted wheeleye hook, Wheeled castor

Pulley, conveyor belt, sling …

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Order purchasing

Fill in a order purchasing formGet the component from the technician after one weekLimited stock, limited budget, limited parts

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Projects from 2010 Class

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Projects from 2010 Class

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Projects from 2010 Class

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The Most “Liked” Project

Award for the most favorite projectUpload the video of your machine complete operation to the ENGG1015 Facebook (FB) page

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The Most “Liked” Project

Template for the post project videoGroup name: (Group name)Bench number: (Bench number)Students: (Student 1, Student 2, ...)

We will only count thenumber of "Like" of yourvideo in the FB pageWe will use the statisticsin 28 Nov 11AM forcounting

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The Most “Liked” Project

Students are encouraged to"Like" your own projectask your friends to "Like" your projectpost your video online to ask others to know and "Like" your projectFinish the project earlier to let others like you

Winner Prize: TBAInstructors and TAs have the final authority to judge and change the rules