Materials, techniques and
There is a variety of pencils such as HB, 2H and
2B that you may have heard of. Try as many as
you can to see what the differences are.
Use softer pencils for sketching (they rub out easily and blend well).
Mechanical pencils are ideal for technical drawing as they are always
Make sure that you sharpen your pencils – and never throw them because
if the lead breaks then you may as well throw it away!
Pencils - task
Use pairs of pencils to create a range of colours. (e.g. use red and yellow to
create a range of reds, oranges and yellows)
Try to blend as seamlessly as possible.
These are harder to use well than you may
think. Task - Try to colour a square
approx 10cm² without making any one
part darker than the rest and without
going over the edges.
Use felt pens sparingly – they should be used
as a presentation medium, not for sketching
or writing in.
Charcoals and Pastels
These are great for sketching, blending
and creating presentation drawings.
However, they can make a mess. Make
sure that you use a fixative on the
finished drawings and wash your hands
• Offset In school you may have
lithography some of these processes
available to you, where as
• Gravure others are used mainly in
• Letterpress industry.
• Laser printers
• Inkjet Printers
Colour printing Cyan
What four colours
are used in printing? Yellow
• Presentation models are used to show what finished
products will look like.
• Sketch models are quick models roughly showing what
something will be like (think Blue Peter)
• Demonstration models show how something works (e.g.
use Lego Technic®)
• Virtual Prototyping is using 3D drawing programs on a
computer to show a high quality representation of a
• Rapid prototyping uses computer generated 3d images
and uses computer controlled lasers to create solid
models from materials such as foam.
• Computer simulation is used for products to test
products in certain situations (e.g. how much weight can
be put on a chair before it collapses)
Pictures from www.turbocad.co.uk
Paper, Cards and Boards
Paper comes in a variety of standard sizes as well as off the roll.
A1 – 594mm x 841mm
A2 – 420mm x 594mm
A3 – 297mm x 420mm (coursework pages)
A4 – 210mm x 297mm (standard school printer size)
A5 – 148mm x 210mm
A6 – 105mm x 148mm
A8 – (business card)
Paper, Cards and Boards - task
Research a range of papers, boards and cards.
Try to find out what each is used for, its weight and cost.
gsm = grams per square metre
Standard writing paper = 80gsm