CIVL 114 Civil Engineering Drawing Topic 7 Concrete blocks Setting lineweight and printing

Outline Seawall blocks drawing Before Printing Set up the plot details Front elevation Side elevation Before Printing Use a suitable linetype scale Assign appropriate lineweights Set up the plot details Reference reading Homework

Seawall blocks drawing

To draw the front elevation Format – Layer – Layer properties manager Prepare layers for center, hidden and dimension lines; use appropriate linetypes and ltscale Details of the icon - refer to textbook

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 elevation EXPLODE and OFFSET the left edge by 100 for the hole; (Modify – Explode)

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 elevation To draw the (left) center line: try LINE – (use FROM snap mode; by Shift+Right click) – From Basepoint: (pick top left corner) <Offset>: @ 800,0 Specify next point: @ -300,-1350 Shift + Right Click

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 elevation MIRROR everything on the left to the right

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 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 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 Choose File – Plot Style Manager (the following table appears)

Before Printing Use 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 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 File – Page Setup Manager (the Page Setup Manager menu appears)

Set up the plot details Select “*Model*” and click “Modify…”, then the following menu appears:

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 Surname Last digit of SID = 0/1/2/3 Last digit of SID = 4/5/6 A - Law Types M1 & M2 (Drawing no.: 1A) Types M2 & M3 (Drawing no.: 1C) Types M3 & M4 (Drawing no.: 1E) others Types M1 & M4 (Drawing no.: 1B) Types M2 & M4 (Drawing no.: 1D) Types M1 & M3 (Drawing no.: 1F) Drawing title: SEAWALL CONCRETE BLOCKS 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

Homework

Homework

Homework