Circuit diagram for R/C

Circuit  symbols

An inductor is characterized by its inductance, the ratio of the voltage to the rate of change of current, which has units of henries (H). Inductors have values that typically range from 1 µH (10⁻⁶H) to 1 H. Many inductors have a magnetic core made of iron or ferriteinside the coil, which serves to increase the magnetic field and thus the inductance. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electric circuits. Inductors are widely used in alternating current(AC) electronic equipment, particularly in radio equipment. They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. They are also used in electronic filters to separate signals of different frequencies, and in combination with capacitors to make tuned circuits, used to tune radio and TV receivers.

Open Switch

Closed Switch

Lamp

Cell

Battery

Voltmeter

Resistor

Fuse

Ammeter

Variable resistor

Thermistor

Light dependent resistor (LDR)

Light emitting diode (LED)

Diode

Functions of components in RC cars

Describe the functions of the following for the RC car

Transmitter
Receiver
Arial
Servo Speed controller Motor
Gearbox
Stub axle 1/2 shaft
Differential
Damper
Ball joint

Alternative parts for the G clamp

Students are to create a couple of paragraphs for the cast aluminium G frame and discuss making this in cast iron ... Why do we not do this ?
Secondly is thread rolling
Both need pictures / diagrams

Catchup on the Diary of making and Alternative parts and constructtion

You need to ensure these two are completed as we are handing the work in on the last Thursday of this term. I am available after school and lunchtimes.

THERE IS NO EXTENSION ON THIS DATE

Making Diary

Please update the diary for making. You have now completed several components and should hae these in your diary , times it took vrs planned time . Check and update

revision

Look att motor drive trains and conttrrol systems for the skateboard

Revision for exam

Look at metal properties and joining techniques

Risk assessment

We need to look at the risk assessment for the can crusher. How might the user get hurt and what can we do to minimise the risk of injury.

CNC page

Many of you have not applied the CNC advantages to the G clamp
A plasma cutter or a water jet cutter is used to cut out the G frame.............WHY????
The CNC lathe will machine the pressure plate ............So what is the advantages of doing this. ??

Hand in date for Part B

Tuesday 22nd September is the hand in date for Part B of your coursework
I will then mark it and any student who has not completed it to a satisfactory standard will be spending time with me in after school catch up

Deadlines for work

please bear in mind we are  attempting to get all the folder work for all the units completed well before your exam preparation starts. That means get off the X box and finish your work!

Unit 14

Look at the video clip for holding material in a chuck
Look at the 3 and 4 jaw chucks and explain why we use the two types.

Milling

Look at a video on Milling  in You tube and then give safety examples from the video

P1 Unit 2

Look at and develop answers to the P1 section of the unit . Read the given information and this will provide all the answers you need in the questions. You do not need to find any outside sources.

Deadline for the Unit 17 work is three weeks before the end of term. Thhis gives me time to mark it and get it back to you for corrections and improvements.   IE 24th June .Anyone late or not finished will be comming back at lunch and afterschools to finish it off. YOu have been warned!

Brake drum change

Watch the following video and use it to create a set of instructions for someone to change the rear drum brakes on a car.
http://www.youtube.com/watch?v=tuCerdkXyBI
or
http://www.youtube.com/watch?v=aaJ6X-uxMGM
You need this for unit 207 LO2

Project Marking

I will be marking the projects over 1/2 term
I need you to check that I have the most up to date copy of your work and that it is in my postbox AND is printed off before the hols
Failure to do so will delay the mark of your project.

Also you need to be working on Unit 207 and developing answers to Lol 1 and 1.2

Deadlines

Can I remind you that Unit 2 needs to be completed for initial marking by the end of this month. Those of you who are behind and are in danger of not meeting this date need to spend lunchtimes in the workshops catching up to ensure completion of the work.

Diploma Work

You should all have finished your project but any student who has not should spend time completing this.


Unit on Maintenance. This needs detailed work on LOL 1 looking t the maintenance of the machine you have selected. \\\\\\\\\\suggest service items and the consequences of failure to maintain.

Here is the copy if it is not on your work at home

EG207 LO1.1

MB1 _____ marks awarded out of 4 available

Machines and equipment must be well maintained in order to be safe to use. This applies to workshop machines, vehicles and aircraft.  In general the more hazards the machine presents to the user, the stricter the maintenance must be. Maintenance types include breakdown, frontline, planned and corrective, although this list can be added to.

Describe the machine or equipment you will be working on (include any serial numbers or unique markings as appropriate);

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Describe two different types of maintenance that are performed on this item (4 marks)

a)     ……………………………………………………………………………………………………………………

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b)       ………………………………………………………………………………………………………………….…………………………………………………………………………………………………………………….....

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LO1.1 MB2 ______ marks awarded out of 3 available

Giving examples, explain how each type of maintenance is appropriate (3 marks)

a)     ……………………………………………………………………………………………………………………

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b)       ………………………………………………………………………………………………………………….…………………………………………………………………………………………………………………….....

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LO1.1 MB3 _____ marks awarded out of 3 available

Describe the advantages and limitations for each type of maintenance (3 marks)

Maintenance type	Advantages	Limitations
a)…………………………...
b)……………………………

Snow Work BTEC

Dear all
Due to snow please look at the folowing.

We are just starting to look at Unit 17
This is a machining unit and looks at LATHES AND MILLING machines.

I need you to produce a risk assessment for each . You need to find a you tube video on how to use the machines

Suggest the following

http://www.youtube.com/watch?v=gviinFxo694


and for the milling machine This is a series of 5 videos so watch all 5 !

http://www.youtube.com/watch?v=J1VtofzVG24