CIVL114 _________ LAB 3: Gauge Block

CIVL114 _________ LAB 3: Gauge Block

Outline

Page Set-upCreating Layers, setting color & linetypeCommands

Draw Lines Round Corners

Drawing the hidden & Center LinesDimensioning

1 Page Set-up

Limits Set up a boundary for drawing (not essential)

Point Draw a point at the right top corner

Limits limits “enter” “enter” 420,297”enter”

Point Point “enter” 420,297

1 Page Set-up

Zoom all (z – a) zooms out to display the whole drawing

Zoom extents (z – e) To display everything that has been drawn (useful)

Also try z – 0.7x, etc. Grid

Background points for visual reference

Snap Affects point selection but invisible

Zoom all (also try zoom extents) z”enter” a”enter”

Grid Grid”enter”10”enter”

Snap Snap”enter10”enter”

2 Create Layers, Set colour & linetype

New layers Add two layers “ctrline” and “hdnline”

Set color give color to the layer

Linetype Change it to center line or hidden line

New layers Click “format” click “layer properties manager” “new layer” type “ ctrline” “new layer” type “hdnline”

Set color pick “white” (default) select “red” and “green” respectively ok

Linetype Pick “continuous” (default) load center line or hidden line ok select center line or hidden line ok ok

3 Draw Lines

Line

1 32

54 6

Line L “enter” 200,20 ”enter” @50<90 “enter”@50<180 “enter”@26<90 “enter” @50<180 “enter”@76<270 “enter”@100<0 “enter”

4 Round Corners

Fillet To round a corner

Circle

Fillet Fillet “enter” R “enter” 19”enter” pick line A and line B “enter” or fillet pick line E and line F

Circle C “enter” cen “enter” pick lower left arc 9.5 “enter”

5 Draw Lines in Side View

Copy CP or CO

Line L

Copy CP pick line A “enter” pick any point on the screen @25<0 “enter” Cp L “enter” pick any point on the screen @50<0 “enter”

Line L end pick the lower end of line I end pick the lower end of line H “enter”

5. Draw Lines in Side View

OFFSET Creates parallel copies of lines, circles, arcs,

or polylinesEXTEND

Extend a line to a boundary

EXTEND pick the line J “enter”

pick lines G and H “enter

OFFSET Offset “enter” 76 pick

the line I pick any point above I “enter”

OFFSET Offset “enter” 50 pick

the line I pick any point above I “enter”

Line I

Line J

Line H

Line G

6. Draw the hidden & center Lines

Zoom windows Z “enter” w ”enter”

80,0 ”enter”290,110 “enter”

Hidden Lines Pick layer “HDNLINE”

Line (you can switch on OSNAP and click points for QUA, PER, etc) L ”enter” .y ”enter” QUA “enter” pick the top part of circle

end pick either end of line G PER pick the line H “enter” L ”enter” .y ”enter” QUA “enter” pick the lower part of

circle end pick either end of line G PER pick the line H “enter”

6. Draw the hidden & center lines (cont.)

Center Line Pick layer “CTRLINE” L ”enter” .y ”enter” CEN “enter” pick the

circle end pick either end of line G PER pick the line H “enter”

Center Line L “enter” QUA “enter” pick the top part of circle QUA “enter” pick the lower part of circle L “enter” QUA “enter” pick the left part of circle QUA “enter” pick the right part of circle

6. Draw the hidden & center lines (cont.)Scale

SCALE (or click the SCALE icon) “enter” pick center lines in circle

INT (or use OSNAP) pick intersection of the 2 center lines

1.5 “enter” SCALE “enter” pick center lines inside view

MID pick the 2 center lines

1.2 “enter”

7. Dimensioning

Dim (or use the menu) Dim “enter”

dimscale “enter” 18 “enter”

hor ”enter” end ”pick LHS of D”

end ”pick RHS of D”

”move mouse to suitable place & click left button”

“enter”

Others: ver/ra/dia….etc (all available from dimension menu)

8 Modify the dimension style

Change the precision Click “dimension” click “dimension style

manager” click “modify” click “primary units” click “precision” 0