W A T K I N S - J O H N S O N C O M P A N Y Semiconductor Equipment Group

1
Engineering 22
SurfaceModeling - 2
Bruce Mayer, PE Licensed Electrical Mechanical
EngineerBMayer_at_ChabotCollege.edu
2
Learning Goals

• Use AutoCAD Built-In Commands to make Primitive
  3D Surface-Shapes
• Box, Sphere, Cone, Pyramid, others
• Draw Surface of Revolution using a Shape Axis
• Connect two Shapes with Straight Lines to Make
  Ruled Surfaces
• Build Complex 3D Shapes by Adding Subtracting
  Primitives

3
Recall - Invoke Surface-Shapes
SurfacesToolBar

• Or Command Line
• ai_XXX
• XXX box, wedge, pyramid, cone, etc.

4
EX15-4 ? Connected Boxes

• Game Plan
• Use Surface-Box WCS to Make Box-a
• Move UCS to Top of Box-a, and Build Box-b
• Use 3D-Orbit Command to obtain better 3D view
• Move UCS in TWO steps to front of Box-b

5
EX15-4 Game Plan

• Use Xline and Offset to move-down the UCS on
  front of Box-b
• Draw Box-c using the Surface-Box Command
• Use 3D-Orbit to obtain the Final Tilted view
  similar to that shown in TextBook

Time For Live Demo
6
EX15-4 Final Result
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EX15-16
8
EX15-16 Game Plan

• In WCS Draw Arched Base using Rect, Arc, Circle
• Explode Rect
• Use Properties Menu to Change thickness to 13
• Move UCS to Lower Rt corner of Arched Base

• Use new UCS command with 3Point Option to
  reorient Z-Axis
• Set Thickness to 13
• Draw Vertical Box
• Locate Circle Center with Xlines
• Draw Ø16 Circle

9
EX15-16 Final Result
10
EX15-22

• Game Plan
• Draw Front Form in WCS with Thickness 40
• Move UCS and Draw Ø24 Peg with Thickness 18

11
EX15-22 Game Plane

• Move and Rotate UCS to Draw Ø40 SemiCircular
  Pedestal with Thickness of 8
• Move UCS to To Top-Ctr of Ø40 Pedestal
• Draw SemiCircular Prism with Thickness of 40

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EX15-22 Final Result

• Hide OFF

• Hide ON

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All Done for Today
SurfaceModelin 3D
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Engr/Math/Physics 25
Appendix
?
Time For Live Demo
Bruce Mayer, PE Licensed Electrical Mechanical
EngineerBMayer_at_ChabotCollege.edu
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EX15-4.1
Command _ai_box Initializing... 3D Objects
loaded. Specify corner point of box ltSnap
ongt Specify length of box 6 Specify width of box
or Cube 5 Specify height of box 2 Specify
rotation angle of box about the Z axis or
Reference Command Command _-view Enter an
option ?/Categorize/lAyer state/Orthographic/Del
ete/Restore/Save/Ucs/Window _swiso

• Make Blue Obj Layer
• Box in WCS

16
EX15-4.2
Command ucs Current ucs name WORLD Enter an
option New/Move/orthoGraphic/Prev/Restore/Save/De
l/Apply/?/World ltWorldgt m Specify new origin
point or Zdepthlt0,0,0gt Command
_ai_box Specify corner point of box Specify
length of box 4 Specify width of box or Cube
c Specify rotation angle of box about the Z axis
or Reference Command _vpoint Switching
to the WCS Current view direction
VIEWDIR-1.0000,-1.0000,1.0000 Specify a view
point or Rotate ltdisplay compass and tripodgt

• Move UCS with Mouse OSnap
• Make New Box as cube

17
EX15-4.3
Command ucs Current ucs name NO NAME Enter
an option New/Move/orthoGraphic/Prev/Restore/Save
/Del/Apply/?/World ltWorldgt m Specify new
origin point or Zdepthlt0,0,0gt Command
ucs Current ucs name NO NAME Enter an option
New/Move/orthoGraphic/Prev/Restore/Save/Del/Apply
/?/World ltWorldgt m Specify new origin point or
Zdepthlt0,0,0gt z Specify Zdepthlt0gt -1

• Move Up Over with Mouse OSnap

• Move w/ Zdepth

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EX15-4.4
Command ai_box Specify corner point of
box Specify length of box 5 Specify width of
box or Cube 2 Specify height of box 1 Specify
rotation angle of box about the Z axis or
Reference Command '_3dorbit Press ESC or
ENTER to exit, or right-click to display
shortcut-menu. Regenerating model. Command
ucs Current ucs name NO NAME Enter an option
New/Move/orthoGraphic/Prev/Restore/Save/Del/Apply
/?/World ltWorldgt m Specify new origin point or
Zdepthlt0,0,0gt

• Make Last Box
• Rotate View with 3D Orbit

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EX15-16.1
Command rectangle Specify first corner point or
Chamfer/Elevation/Fillet/Thickness/Width
ltSnap ongt Specify other corner point or
Area/Dimensions/Rotation _at_35,30 Command _arc
Specify start point of arc or Center Specify
second point of arc or Center/End _c Specify
center point of arc mid of Specify end point of
arc or Angle/chord Length Command c CIRCLE
Specify center point for circle or 3P/2P/Ttr
(tan tan radius) mid of Specify radius of
circle or Diameter d Specify diameter of
circle 13 Command _-view Enter an option
?/Categorize/lAyer state/Orthographic/Delete/Res
tore/Save/Ucs/Window _seiso Regenerating
model. Command

• Make the Base in WCS
• Need to Explode Rect and Remove line thru Circle

20
EX15-16.2
Command explode Select objects 1 found Select
objects Command e ERASE Select objects 1
found Select objects Command ltSnap
offgt Command Command Command Command Command
Command Command Command _propertiesCommand
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EX15-16.3
Command

• Move UCS With Mouse-Pick

• Rotate UCS Axes with
• NEW
• 3Point Option

22
EX15-16.4
Command ucs Current ucs name WORLD Enter an
option New/Move/orthoGraphic/Prev/Restore/Save/De
l/Apply/?/World ltWorldgt m Specify new origin
point or Zdepthlt0,0,0gt Command ucs Current
ucs name NO NAME Enter an option
New/Move/orthoGraphic/Prev/Restore/Save/Del/Apply
/?/World ltWorldgt n Specify origin of new UCS
or ZAxis/3point/OBject/Face/View/X/Y/Z lt0,0,0gt
3point Specify new origin point lt0,0,0gt Specify
point on positive portion of X-axis
lt1.0000,0.0000,0.0000gt nea to Specify point on
positive-Y portion of the UCS XY plane
lt0.0000,-1.0000,0.0000gt Command Specify
opposite corner Cancel
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EX15-16.5
Command thickness Enter new value for THICKNESS
lt0.0000gt 13 Command xl XLINE Specify a point
or Hor/Ver/Ang/Bisect/Offset Specify through
point Specify through point Command XLINE
Specify a point or Hor/Ver/Ang/Bisect/Offset Sp
ecify through point nea to Specify through
point Command XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through ltThroughgt 37

• Set Thickness to 13
• Draw Side-Box using Xline and Line

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EX15-16.6
Select a line object Specify side to
offset Select a line object Specify side to
offset Cancel Command XLINE Specify a point
or Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through lt37.0000gt 30 Select a
line object Specify side to offset Select a
line object Command l LINE Specify first
point Specify next point or Undo Specify next
point or Undo Specify next point or
Close/Undo Specify next point or
Close/Undo Specify next point or Close/Undo
Cancel

• Set Thickness to 13
• Draw Side-Box using Xline and Line

25
EX15-16.7
Command xl XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through lt37.0000gt 12 Select a line
object Specify side to offset Select a line
object Specify side to offset
Cancel Command xl XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through lt12.0000gt 15 Select a line
object Specify side to offset Select a line
object Cancel Command c CIRCLE Specify
center point for circle or 3P/2P/Ttr (tan tan
radius) Specify radius of circle or Diameter
lt6.5000gt d Specify diameter of circle lt13.0000gt
16

• Locate Circle Ctr with XLines
• Draw Circle

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EX15-16.8 Final Result
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EX15-22.1
Command limits Reset Model space limits Specify
lower left corner or ON/OFF lt0.0000,0.0000gt Spe
cify upper right corner lt420.0000,297.0000gt
297,210 Command '_layer Command xl XLINE
Specify a point or Hor/Ver/Ang/Bisect/Offset Sp
ecify through point ltOrtho ongt Specify through
point Command XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset Specify through
point Specify through point

• Base Form in WCS
• Xline
• Line
• Circle Arc

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EX15-22.2
Command XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through ltThroughgt 70 Select a line
object Specify side to offset Select a line
object Command XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through lt70.0000gt 60 Select a line
object Specify side to offset Select a line
object Specify side to offset Command XLINE
Specify a point or Hor/Ver/Ang/Bisect/Offset
o Specify offset distance or Through lt60.0000gt
35 Select a line object Specify side to
offset Select a line object Specify side to
offset Select a line object
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EX15-22.3
Command xl XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through lt35.0000gt 10 Select a line
object Specify side to offset Select a line
object Cancel Command l LINE Specify first
point Specify next point or Undo Specify next
point or Undo Specify next point or
Close/Undo Specify next point or
Close/Undo Specify next point or Close/Undo
Cancel Command l LINE Specify first
point Specify next point or Undo Specify next
point or Undo Specify next point or
Close/Undo
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EX15-22.4
Command c CIRCLE Specify center point for circle
or 3P/2P/Ttr (tan tan radius) Specify radius
of circle or Diameter d Specify diameter of
circle 10 Command arc Specify start point of
arc or Center Specify second point of arc or
Center/End Specify end point of arc Command
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EX15-22.5
Command _-view Enter an option
?/Categorize/lAyer state/Orthographic/Delete/Res
tore/Save/Ucs/Window _swiso Regenerating
model. Command tr TRIM View is not plan to UCS.
Command results may not be obvious. Current
settings ProjectionUCS, EdgeNone Select
cutting edges ... Select objects or ltselect allgt
1 found Select objects Select object to trim or
shift-select to extend or Fence/Crossing/Project/
Edge/eRase/Undo Select object to trim or
shift-select to extend or Fence/Crossing/Project/
Edge/eRase/Undo Cancel Command ltSnap
offgt Command Specify opposite corner Command Co
mmand Command Command Command Command
_propertiesCommand
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EX15-22.6
Command xl XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset cen of Specify
through point mid of Specify through
point Command xl XLINE Specify a point or
Hor/Ver/Ang/Bisect/Offset o Specify offset
distance or Through lt10.0000gt 30 Select a line
object Specify side to offset Select a line
object Cancel Command Thickness Enter new
value for THICKNESS lt0.0000gt -18 Command
c CIRCLE Specify center point for circle or
3P/2P/Ttr (tan tan radius) Specify radius of
circle or Diameter lt5.0000gt d Specify diameter
of circle lt10.0000gt 24

• Draw Ø24 Knob
• Xline
• Thickness -18
• Circle

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EX15-22.7
Command ucs Current ucs name WORLD Enter an
option New/Move/orthoGraphic/Prev/Restore/Save/De
l/Apply/?/World ltWorldgt n Specify origin of
new UCS or ZAxis/3point/OBject/Face/View/X/Y/Z
lt0,0,0gt x Specify rotation angle about X axis
lt90gt -90 Command UCS Current ucs name NO
NAME Enter an option New/Move/orthoGraphic/Prev/
Restore/Save/Del/Apply/?/World ltWorldgt
m Specify new origin point or Zdepthlt0,0,0gt
mid of Command

• 3D Orbit to Obtain Good View
• Move UCS to make SemiCirc Prisms

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EX15-22.8
Command thickness Enter new value for THICKNESS
lt-18.0000gt 0 Command c CIRCLE Specify center
point for circle or 3P/2P/Ttr (tan tan radius)
mid of Specify radius of circle or Diameter
lt12.0000gt d Specify diameter of circle
lt24.0000gt 40 Command xl XLINE Specify a point
or Hor/Ver/Ang/Bisect/Offset Specify through
point Specify through point Command
thickness Enter new value for THICKNESS lt0.0000gt
8 Command arc Specify start point of arc or
Center Specify second point of arc or
Center/End c Specify center point of arc
mid of Specify end point of arc or Angle/chord
Length Command Cancel

• Make Pedestal Base with Circle, Thickness 8, Arc

35
EX15-22.9
Command ucs Current ucs name NO NAME Enter
an option New/Move/orthoGraphic/Prev/Restore/Save
/Del/Apply/?/World ltWorldgt m Specify new
origin point or Zdepthlt0,0,0gt mid of Command
c CIRCLE Specify center point for circle or
3P/2P/Ttr (tan tan radius) mid of Specify
radius of circle or Diameter lt20.0000gt
d Specify diameter of circle lt40.0000gt
28 Command Thickness Enter new value for
THICKNESS lt0.0000gt 40

• Make SemiCirc Prism
• Move UCS
• Thickness 40
• Circle Arc

36
EX15-22.10
Command arc Specify start point of arc or
Center Specify second point of arc or
Center/End c Specify center point of arc
mid of Specify end point of arc or Angle/chord
Length Command ARC Specify start point of arc
or Center Specify end point of arc
Cancel Enter new value for THICKNESS
lt40.0000gt 0 Command l LINE Specify first
point Specify next point or Undo Specify next
point or Undo

• Make SemiCirc Prism
• Move UCS
• Thickness 40
• Circle Arc

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