Today's CAD/DTP Mini Test

Here are the questions and answers to today's mini test to use as revision for the CAD/DTP NAB on the 17/11/11 which is next time I see you.  As well as looking here I suggest that you look at the Can Do statements on the front cover of the CAD pack, use the homework sheets and the Leckie and Leckie book to make sure that you are comfortable with the answers for each.

a) The rectangle tool was used first of all to draw the body of the multimeter, and then another rectangle was used to draw the screen.
b) The chamfer tool was used to cut the bottom two corners off at an angle of 45.
c) The text tool was used to place the values on the screen.
d) The circle tool was used to draw the dial by drawing two concentric circles.  The circle tool was also used to draw the holes at the bottom of the multimeter.
e) The fillet tool was used to round the top two corners of the body of the multimeter.  A radius of 10mm was used.
d) A Linear Array was used to duplicate the same circle for the holes at the bottom of the multimeter, and space the 3 of them evenly in a line, equal distances apart.
e) The dimension tool was used to show the linear dimension of the overall height of the object and the radius of the curve of the fillet on the top right corner.

a) Facing Pages/Double Page Spread
b) Caption
c) Text Wrap
d) Bullet Point list
e) Drop Cap (when the first letter of a paragraph drops two or three lines)
f) Full Bleed (where an image "bleeds" off the page deliberately)
g) Margin
h) Footer or Folio

a) Flatbed Scanner, Digital Camera, Graphics Tablet, (maybe fax machine but that relies on the computer having fax software so this may not be accepted)
b) Laser Printer, Ink Jet Printer, Drum Plotter, Flatbed Plotter
c) Surface, wireframe, solid
d) Layering a drawing means that different details are drawn in different areas of a drawing which overlap like clear acetates.  This allows different elements to be switched on and off to help understand the drawing.  i.e. when drawing an orthographic drawing the outlines could be drawn in one layer, the dimensions in an other and centre lines in a third.  You could also show different levels of detail if required.

Today's CAD and DTP Mini Test

Homework set: Pyramid Extension sheet 2  for 21/11/11

Today we did the following questions to revise for the CAD/DTP NAB on the 17th of November.

a) The ring/Polar array was used to draw the circles indicating where the numbers would be on the clock.  First a circle was drawn and then a polar array drawn duplicating this first circle 11 times with a space of 30 degrees between each duplicate around  central point.

b) The pattern fill was used to draw the diagonal pattern on the duplicated circles.

c) The dimension tool was used to show the linear dimension of the overall width of the clock.

d) The mirror tool was used to copy the detail at the bottom and make it an exact mirror image of the original.

e) The line tool was used to draw two hands.

f) A linear array was used to draw the four buttons under the clock.  First one rectangle was drawn and then duplicated 3 times with uniform distance between each duplicate.

a) Heading
b) Subheading
c) Imported Graphic
d) Caption
e) Gutter
f) Boxed out Text
g) Text Wrap
h) Folio

a) Quick and easy to make copies, Quick to make alterations/correct mistakes, More accurate measurements, Can use a library for common parts, Can easily send copies to different locations, Can store drawings in different locations
b) + Can test out different textures + Can use it in simulation/animation to demonstrate features + Easier to store  - Can't physically touch it - Can't interact with the model
c) You can watch an animation i.e. create a video clip demonstrating how a folding chair can be folded and unfolded.  You can interact with a simulation and test out different situations i.e. Load the folding chair with different people and objects to see how it could withstand each.

Pyramid Revision

Hopefully this video will help you with your pyramid drawings.  This is pyramid 8 - the Octagonal pyramid.

Homework / NAB update

Today I gave back homework on CAD theory and pyramids.  This showed a need for further revision so watch this space!

Homework : CAD 4 due in on 15/11/11

                     Pyramid Resubmission (if required) on 15/11/11

NAB: Includes CAD and DTP terms on 17/11/11

You need to know generic CAD and DTP terms like those found in your homework sheets from both topics.  We will do some mini tests as revision in class.  You should revise by making yourself notes from the Leckie and Leckie book, and your DTP booklet.

CAD Revision

Here is a sheet to help you remember some of the CAD commands.

Remember that you need to know the GENERIC terms for the CAD commands because not everyone uses VectorWorks!  You can also use page 49 of the Leckie and Leckie Text book.

British Standards Revision

This NAB and the knowledge and understanding required for the exam is based on dimensioning and building symbols used, you also need to know about the different drawings in a drawing set used in building construction.  You need to know how to dimension different shapes using the British Standards rules, and you need to recognise the different symbols.

Dimensioning:

The correct methods for dimensioning shapes are shown below.

General dimensioning rules:

• All measurements are in mm.  There is no need to write mm next to the number.
• All dimensions should be drawn outside of the drawing.
• All dimensions should only be drawn once even if the dimension appears in two views.

Linear Dimensions:

• Leader lines must never touch the drawing and the arrows should reach all the way to the leader lines.
• Smaller dimensions may be shown by pointing the arrows into the leader lines (like the 10 dimensions in the top left corner)
• Numbers should be read from the bottom of the page, or the right of the page (i.e. tilting your head to the left, or turning the page right) And from these views the numbers should appear above the lines.
• Dimensions and their leader lines should not cross each other - i.e. smaller dimensions should be inside larger dimensions.

 Circle Dimensions:

• You should draw on centre lines if they are not already there
• An arrow going through the centre shows that you are giving the diameter (radius should only be used when it is not a whole circle)
• Extended from this arrow the leader line should come out of the drawing, and the number written with the diameter sign in front of it

•  A radius is very similar to the circle, with an arrow from the centre of the arc to the outside
• An "R" precedes the number to show that it is a radius.

Polygon Dimensions:

• Polygons are shown Across Corners (from point to point) or Across Flats (from flat to flat) as shown above.
• AC dimensions will see the circle construction outside the shape
• AF dimensions will see the circle construction inside the shape

Drawing Types:
These are found on page 32/33 of Leckie and Leckie

Location Plan

• Normally drawn to a scale of 1:1250
• Shows the new building with a dark outline and a hatch
• Clearly shows the new buildings and its surroundings
• Shows neighboring buildings, roads, street names
• The symbol in the top right hand corner is the North symbol, the arrow shows the direction of north

Site plan/Block plan

• Normally drawn to the scale 1:200
• There are two drawings shown above, they show different things, depending on what you want to show.  The one on the left is the more traditional site plan.
• The left site plan shows: existing trees, contour lines, drainage features
• The right site plan shows: building outline and roof with dimensions, the position of the house on the site

Floor Plan

•  Floor plans are usually drawn to a scale of 1:50
• The show the arrangements of rooms
• The top floor plan shows the dimensions of the rooms and the positions of windows and doors
• The bottom floor plan shows the materials used to make the walls and the positions of fixtures and appliances needed by builders, plumbers and electricians.

Symbols:

You need to know the following standard symbols.  This is from page 34 of Leckie and Leckie

British Standards

You are due to sit the NAB on British Standards on 23/9/11.

You need to know all of the building symbols from your revision sheets and homework, and you will be asked to dimension different shapes. 

The NAB is not very long, so make sure that you get the best marks you can by going over the homework I have given you, and the revision notes we made in class.