drawing techniques Flashcards
what is the vanishing point on a drawing?
the spot where all the lines meet
where is the vanishing point?
on the horizon line
give one advantage and one disadvantage of using isometric rather than perspective drawing?
isometric can be used to show a 3D picture
however it doesn’t show perspective (thinks dont get smaller in the distance)
name 2 types of assembly drawing?
exploded views and sectional drawings
what does a drawing look like with an exploded view?
you draw the product with each separate part of it moved out
what does a drawing look like with an sectional view?
it shows what the product would look like inside if you cut it in two
what does CAD and CAM stand for?
computer aided design
computer aided manufacture
what is CAD used for?
2D drawing programmes and 3D modelling packages
how would using CAD help a designer?
CAD helps designers model and change their designs quickly. It is easy to experiment with alternative colours and forms and you can spot problems before making anything
give an advantage of CAD?
in 3D products you can view the products from all angles
in an orthographic projection what are dimensions measured in?
millimetres
what are the 5 recommendations following the British Standards of drawing a orthographic projection?
outlines: thick and continuous construction lines; light and continuous centre lines: alternate short dashes, light hidden details: short dashes, light dimension lines: medium and continuous
