DF assignment questions

1. Choose 2 machines that you used in the fabrication of your desk tidy. With these machines in mind, outline WPH&S considerations that must be adhered to when using these machines. Include photographs of your chosen machines (OnGuard may be an excellent resource for this question).

BAND SAW

SAFETY GEAR

-Goggles 

-Appropriate clothing

HAZARDS

-Long sleeved shirts can get caught in the work or in the band saw blade.

-Keep hair tied up so it doesn't get caught in the band saw blade.

-A blade can break and the possibility exists that a piece could come loose.

-Keep attention on what you are cutting

-Turn off the band saw once you are finished using it.

-Keep fingers away from blade

BELT AND DISC SANDER

SAFETY GEAR

-Googles

-Appropriate clothing

-Mask (optional)

HAZARDS

-If wearing long sleeves, roll them up so they don't get caught in the machine.

-Tie hair so it doesn't get caught in the machine.

-Dust or a bit of the project could fling into your eye, so always wear goggles.

-Turn the machine off once you have done.

-Don't talk or look at anything while using the machine because you can slip and hurt your self.

2. The material you are using for your desk tidy is called Polymethylmethacrylate (ACRYLIC). It has specific properties and uses.  Choose 2 other common polymers and in table form give their industrial name, common name, properties and uses.

1. 
   

1. 
   

   Industrial Name	Common Name	Properties And Uses
   Polyester	thermoplastic or thermoset polycondensate.	It has excellent dimensional stability, high dielectric strength, and good toughness. It has moderate chemical resistance, low resistance to strong acids and bases, is notch sensitive, and is not recommended for outdoor use or in hot water.
   Polyamide	PA or Nylon	It has high lubricity and moderate strength. It is tough, inexpensive, and has poor dimensional stability due to water absorption (hygroscopic nature)

3.Extrusion, injection moulding, compression moulding, vacuum forming and laminating are examples of common manufacturing processes used with polymers (Plastics). Choose one process and with the use of diagrams and bullet points outline the process.

INJECTION MOULDING

Injection moulding is a manufacturing process for producing parts from both thermoplastic andthermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the cavity. After a product is designed, usually by an industrial designer or an engineer, molds are made by a moldmaker (or toolmaker) from metal, usually either steel or aluminum, and precision-machined to form the features of the desired part. Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars.

STAGES OF INJECTION MOULDING

Stage 1
Granulated or powdered thermoplastic plastic is fed from a hopper into the Injection Moulding machine.

Stage 2

The Injection Moulding machine consists of a hollow steel barrel, containing a rotating screw (Archemidial Screw). The screw carries the plastic along the barrel to the mould.

Heaters surround the barrel melt the plastic as it travels along the barrel.

Stage 3
The screw is forced back as the melted plastic collects at the end of the barrel.
Once enough plastic has collected a hydraulic ram pushes the screw forward injecting the plastic through a sprue into a mould cavity.
The mould is warmed before injecting and the plastic is injected quickly to prevent it from hardening before the mould is full.


Stage 4
Pressure is maintained for a short time (dwell time) to prevent the material creeping back during setting (hardening). This prevents shrinkage and hollows, therefore giving a better quality product.
The moulding is left to cool before removing (ejected) from the mould. The moulding takes on the shape of the mould cavity.
The image below shows an an Injection Moulding machine.

4.Extension Work - Using processes acquired from your maths lessons, calculate the amount of acrylic sheet that your FINAL desk tidy represents. Show all calculations; answer needs to be in square metres.

week 5

Today in DF I started of by glueing the 6 pipes and the piece that goes in front of the pipes.  I also cut out the small triangles used to hold things in place. I cut to out but when I glued them I only used 1 because if I glued them both you would not be able to put any thing in them. Today I finished my desk tidy and here is a photo of my finished work....

My project

A birds eye view

The back of my project.

week 4

Today in DF I cut the pencil holes out. But instead of doing 3 (as shown in post 14) i cut out 6 because their was not enough room to do three big pipes but there was enough room to do 6 smaller pipes. I used clear colour pipes. I also cut out the piece of acrylic that sits just after the pipes. Next lesson i’m hoping to glue both the pipes and the piece that goes in front of the pipes.

week 3

Today in DF I cut out the draw (as shown in post 1). It was a little bit tricky as the large band saw was broken. Instead I used the smaller band saw which took a little bit longer to cut out. It was also a bit difficult to cut out as I couldn’t use the sander to sand the corners because it didn’t fit, so instead I used sanding paper and the hand sander. Next lesson I will cut out my pencils holes.

week 2

Today was the day I started to make my desk tidy. First I measured and cut out the basic outline using the band saw and then sanded it down so it would be nice and smooth. I was a bi scared at first to use the band saw because I had never used it before but after I cut i was not scared anymore.After that I glued it together and left it down in a room so nobody would touch it and so the glue would dry. Next lesson I will try and cut out everything so after I do that I can start building everything.

Term 2 week 1

I have changed my idea from reflection 13. I changed it because I liked this idea better than my other idea. I came up with it myself and I think it looks great!

Here is my idea...

I like this idea better because it looks better and it is more simple to make than my other ideas. 

lesson 13

Today I was away, but I asked what we were doing in class so I could do it at home.
Mr ward asked us to research some desk tidies, so we would have some ideas of what we could make.
Here are some of the ideas I am thinking of...

Evaluation

FUNCTION:
definition: Does the aretefact do what it was designed to do, or does it peform effectively and efficiently?
My desk lamp was designed to help me with a number of things: Firstly, to help me see while I'm sitting at my desk do work or whatever. Secondly to stand up by itself so it won't fall down. And thirdly it was designed correctly so the light wouldn't shine in my eyes, just on the desk so I can see what I'm doing.


AESTHETICS:
definition: Very Subjective (is often subject to personal tastes and/ or fashions of the times.Relate the colour, shape, proportion, texture and other visuals aspects of the artefacts.
My desk lamp was designed how I wanted it, not how someone else wanted it. I didn't do something totally different or really "out there" I just did something simple and how I liked it. 


ECONOMICS:
definition: The cost of materials, manufacturing, labour, advertising, transport, packaging, sales, administration.

• Aluminium body $2.40, I used $2.40
• heat shrink $12 per metre, I used 50c 
• LED strip $195 per 5 m, I used $2.80
• Power cord $2.80, I used $2.80
• poly propylene $0.20,  I used $0.20

So all together my desk lamp would of costed $8.70.

But if I were to sell my desk lamp I wouldn't sell it for $8.70, because to make this lamp it took me some time, which I need to get paid for. And also if I were to sell it, it would of costed more money because this desk lamp is not package or transported, so again it would cost more money.

Design layout

INVESTIGATION

· Types of plastic available
· How to shape and join plastics
· Desk tidy designs already in use

IDEATION

· Generation of alternative shapes
· Free hand sketches
· Copy and paste photos from the internet

PRODUCTION

· Detailed sketch of you chosen design with dimensions

DF Assignment questions

What is the actual difference between light of different colours?

The amount of energy it contains is determined by the frequency of the EM wave. That being the case, different colours of light have different amount of energy and different amount of frequencies.

Define the following lighting terms:

Ambient light- The soft light that fills the volume of a room with illumination. It creates an inviting glow in the room and softens shadows on people's faces

Direct light diffuser-

Luminosity- Luminosity is a measurement of brightness. The intrinsic brightness of a celestial object (as distinct from its apparent brightness diminished by distance).

Energy efficiency- Is the goal of efforts to reduce the amount of energy required to provide products and services. Reducing energy will reduce your energy costs and is also seen as a key solution to the problem of reducing emissions. According to the International Energy Agency, improved energy efficiency in buildings, industrial processes and transportation could reduce the world's energy needs in 2050 by one third, and help control global emissions of greenhouse gases.

Watts- One watt is the rate at which work is done when an object's speed is held constant at one meter per second against constant opposing force of one newton.

Comment on Global warming

Global warming is affecting many parts of the world.  Global warming makes the sea rise, and when the sea rises, the water covers many low land islands.  This is a big problem for many of the plants, animals, and people on islands.  The water covers the plants and causes some of them to die. When they die, the animals lose a source of food, along with their habitat.  Although animals have a better ability to adapt to what happens than plants do, they may die also.  When the plants and animals die, people lose two sources of food, plant food and animal food.  They may also lose their homes.  As a result, they would also have to leave the area or die.  This would be called a break in the food chain, or a chain reaction, one thing happening that leads to another and so on.  

How can the modern home become more energy efficient with regard to lighting?

The modern home can become more energy efficient with regard to lighting by buying fluorescent lights instead of incandescent. They are more expensive when you buy one but when you get our energy bill the price will be more lower than normal. You could also maximize the use of sunlight in your home. It can help to keep your lighting-related energy costs down.

Research a modern-day lighting designer and comment on their contribution to the design world

Durham Marenghi

Durham Marenghi has created the lighting design for a wide variety of theatre, opera, dance, trade, heritage, concert, live event and television productions worldwide. Durham has designed the New Year’s Eve light show in London since 2004. Durham also designed the lighting for the Winter Olympics and Paralympics Opening and Closing Ceremonies in Turin 2006. In 2006 Durham Marenghi received an International Illumination Design Award of Excellence from the Illuminating Engineering Society of North America for the interior speciality lighting of the Space Centre, Bremen at that time the largest indoor theme park in Europe.

I think Durham Marenghi has contributed greatly to the designing world because some of his lighting designs are incredible and amazing. He has made so many special events (as said in the above paragraph) incredibly good and made them so much more interesting because of how he designed them.

Here are a couple of his lighing designs.

My finished LED desk lamp

Learning how to bend and drill acrylic

Bending tools
-Acrylic cement
-Strip heater
-Heater

Drilling tools
-Spade bits for the power drill
-Drill press

lesson 9

Today we finished up our desk lamp. All I had to do today was solder the wire to the other wire that goes into the plug. Now my desk lamp is completely finished and there is nothing left for me to do on my desk lamp.

Lesson 8

Today I put the hole in the wood block, using the large drill. I also cut the strip of LED light and soldered the LED light and wire together. I used the double-sided sticky tape to stick the wire down.

Lesson 5

Today we learnt how to use the power drill. We used this machine to nail the metal to the wood block. We also used the pilot hole. At this stage we still have to put the LED lights in and wire everything up. My desk lamp was too long so I had to cut 5cm off the strip of metal. Now it is the right size and it looks good.

lesson 3

Lesson 3

Lesson 2

In today's lesson Mr Ward was explaining the assignment for this term. He went through the the whole assignment and told us what has to be done and when by. He was going through some designs for the ECO lamp that we will be making. He showed us what other people in the past years had made and shaid that we could design our lamp to any shape we wanted.Then we read over a PowerPoint about the Eco lamp. We also were finishing setting up our blog and Writting our posts. That is what we did in today's lesson.

lesson 1

This lesson Mr Ward introduced year 9 design futures. He told us what we would be doing this year in df. We are designing desk lamps. We also made and edited our blogger and made our first post. And thats all we did this lesson.