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CIVL 114 Civil Engineering Drawing. Topic 7 Concrete blocks Setting lineweight and printing. Outline. Seawall blocks drawing Front elevation Side elevation Before Printing Use a suitable linetype scale Assign appropriate lineweights Set up the plot details Reference reading

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civl 114 civil engineering drawing

CIVL 114Civil Engineering Drawing

Topic 7

Concrete blocks

Setting lineweight and printing

outline
Outline
  • Seawall blocks drawing
    • Front elevation
    • Side elevation
  • Before Printing
    • Use a suitable linetype scale
    • Assign appropriate lineweights
  • Set up the plot details
  • Reference reading
  • Homework
to draw the front elevation
To draw the front elevation
  • Format – Layer – Layer properties manager
  • Prepare layers for center, hidden and dimension lines; use appropriatelinetypesand ltscale

Details of the icon

- refer to textbook

to draw the front elevation1
To draw the front elevation
  • Draw 2700 by 1350 rectangle;
  • OFFSET to inside by 40 (all chamfers: 40mm);

(Modify – Offset)

  • Connect corners with lines
to draw the front elevation2
To draw the front elevation
  • EXPLODEand OFFSET the left edge by 100 for the hole;

(Modify – Explode)

to draw the front elevation3
To draw the front elevation
  • Put it on the hidden line layer
  • Set the linetype and linetype scale as follows:
    • Format – Linetype – Global scale factor
    • LTSCALE (short cut : lts)
to draw the front elevation4
Shift + Right ClickTo draw the front elevation
  • To draw the (left) center line:
    • try LINE – (use FROM snap mode; by Shift+Right click) –
      • From Basepoint: (pick top left corner)
      • : @ 800,0
      • Specify next point: @ -300,-1350
to draw the front elevation5
To draw the front elevation
  • Put it on the center line layer
  • SCALE the center line by 1.2

(Modify – Scale)

to draw the front elevation6
To draw the front elevation
  • MIRROR everything on the left to the right
to draw the side elevation
To draw the side elevation
  • Turn on both OSNAP and OTRACK for object tracking
  • RECTANG
      • Without clicking, touch the top right corner and move mouse to the right (dashed line appears; see below)
      • Enter 1000 (or other suitable separation)
      • Specify other corner point: @ 2025, -1350
to draw the side elevation1
To draw the side elevation
  • Modify - CHAMFER

– specify both chamfer distances as 40

– enter P (polyline option) – pick the rectangle in side view

**CHAMFER: similar to FILLET but bevels the edges rather than round them **

before printing use a suitable linetype scale
Before Printing Use a suitable linetype scale
  • Check your original drawing limits using the LIMITS command: they are from (0,0) to (a,b) (e.g. a = 12, b = 9)
  • Check the dimensions (AxB) of your paper, in mm (e.g. 297x210 for A4 or 420x297 for A3 paper)
  • What scale is to be used, 1:S (e.g. S = 50 for 1: 50 scale)
  • Approximately, the linetype scale should be (A/a)xS(e.g. 297/12x50). This is set in Format – Linetype Scale (for the Global Scale Factor)
before printing use appropriate lineweights
Before PrintingUse appropriate lineweights
  • Choose File – Plot Style Manager (the following table appears)
before printing use appropriate lineweights1
Before PrintingUse appropriate lineweights
  • Double click “acad.ctb”(a file which stores the lineweight information by color) - click “Form View” tab and the menu appears:
before printing use appropriate lineweights2
Before PrintingUse appropriate lineweights
  • Select the color that you used for each line type when creating the drawing. e.g. you may have used red (color 1) for all center lines; purple (color 6) for hidden lines, blue (color 5) for steel bars, black (color 7) for solid lines (title block and concrete outline, etc.).
  • Assign the appropriate lineweight for each color (e.g. 1mm for blue, 0.5 mm for black, etc.) – Save & Close.
set up the plot details
Set up the plot details

File – Page Setup Manager(the Page Setup Manager menu appears)

set up the plot details1
Set up the plot details
  • Select “*Model*” and click “Modify…”, then the following menu appears:
set up the plot details2
Set up the plot details
  • For Plot style table, choose acad.ctb – Yes to use the lineweightes you assigned
  • Choose Printer/plotter (e.g. BarnCL5) and Paper size (usually A3)
  • In Plot Area, choose what to plot (e.g. by window & choose corners of title block)
  • Plot scale:
  • Check “Fit to paper” if scale is unimportant (e.g. just a rough draft)
  • If a scale is specified, then uncheck “Fit to paper”
    • Suppose scale is 1:50 (meaning: 1 mm on paper will represent 50 mm of actual object), while drawing dimensions are in mm.
    • Choose “1:50” directly or choose “Custom” and set 1 mm (on paper) = 50 units (on drawing)
  • In “Plot offset”, select “Center the plot”
  • Always Preview: change the orientation to Portrait or Landscape if needed (right-click - Exit to exit preview). Click “OK” – “Close” if all is OK.
homework
Homework
  • Draw 1:1 (using the given dimensions in mm) on AutoCAD
  • Print at 1:50 scale on A3 paper (put both the two types of blocks on the same drawing)
  • Use proper lineweight as discussed in first lecture
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