bmayer@chabotcollege.edu engr-22_lec-05_advancmd-1.ppt 1 bruce mayer, pe engineering 22 –...
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BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt1
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Bruce Mayer, PELicensed Electrical & Mechanical Engineer
BMayer@ChabotCollege.edu
Engineering 22
AutoCADAutoCAD©© Advanced Advanced Cmds-1Cmds-1
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt2
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Learning GoalsLearning Goals
Use the ACAD “Osnap” tools to facilitate point selection
Use ACAD “Grips” to facilitate entity modification
Create and Use ACAD “Blocks” Create & Modify ACAD “Layers” Understand the Use of ACAD
“Attributes”
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt3
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Object Snap → OsnapObject Snap → Osnap Object Snaps (Osnaps for short) are
drawing AIDS that are used in conjunction with other commands to help you accurately Select Entity-Points
Osnaps allow you to snap onto a specific object location when you are picking a point. • For example, using Osnaps allows you to
accurately pick the END-POINT of a line or the CENTER of a circle.
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt4
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap UtilityOsnap Utility Osnaps in AutoCAD are EXTREMELY useful
in that they allow the Designer to QUICKLY construct Accurate Entities
Osnap ToolBar
Osnap Toggle
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt5
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap DialogsOsnap Dialogs Activate the Osnap
menu by Ctrl+[right-click]
Osnap Settings
Suggest No Change
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt6
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → EndpointOsnap → Endpoint
The Endpoint Osnap snaps to the end points of lines and arcs and to polyline vertices. • This is one of the most useful Osnaps
Invocation. • Tool Bar: EndPt icon (Above)
• Pull-down: Shift + Right Click Endpoint
• Keyboard: END (when selecting objects)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt7
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → Snap FromOsnap → Snap From
Snap From HiLites typical “Osnap Points” on the selected entity • Essentially IDs modification “handles” or
“grips”
Invocation. • Tool Bar: Snap From
icon
• Pull-down: Shift + Right Click From
• Keyboard: FRO or FROM (when picking)
Snap-From Handles Activated
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt8
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → MidPointOsnap → MidPoint
Midpoint Osnap snaps to the middle of lines and arcs and to the midpoint of polyline segments. • Another VERY Helpful command
Invocation. • Tool Bar: Midpoint icon
• Pull-down: Shift + Right Click Midpoint
• Keyboard: MID (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt9
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → IntersectionOsnap → Intersection
Intersection Osnap snaps to the physical intersection of any two drawing objects; i.e., where lines, arcs or circles etc. cross each other)
Invocation. • Tool Bar: Intersection icon
• Pull-Down:Shift + Right Click Intersection
• Keyboard: INT (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt10
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → Apparent INTOsnap → Apparent INT
Apparent Intersection snaps to the point where objects APPEAR to intersect in the current view.
Invocation. • Tool Bar: Apparent INT icon
• Pull-Down:Shift + Right Click Apparent Intersect
• Keyboard:APP or APPINT (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt11
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → CenterOsnap → Center
Center Osnap snaps to the center of a circle, arc or polyline arc segment. • The cursor must pass over the
circumference of the circle or the arc to Find the Center
Invocation. • Tool Bar: Center icon
• Pull-Down: Shift + Right Click Center
• Keyboard:CEN (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt12
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → PerpendicularOsnap → Perpendicular
Perpendicular Osnap snaps to a point which forms a perpendicular with the selected object • Normal: FROM-pt, TO-entity
• Deferred: FROM-entity, TO-pt Invocation.
• Tool Bar: Perpend icon
• Pull-Down:Shift + Right Click Perpendicular
• Keyboard:PER or PERP (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt13
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → TangentOsnap → Tangent
Tangent Osnap snaps to a tangent point on a circle or arc • Normal: FROM-pt, TO-circ/arc
• Deferred: FROM-circ/arc, TO-pt
Invocation. • Tool Bar: Tangent icon
• Pull-Down: Shift + Right Click Tangent
• Keyboard:TAN (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt14
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → NearestOsnap → Nearest
Nearest Osnap snaps to the nearest point on a drawing object. • NEA is useful if you want to make sure that
a pick point lies on a drawing object but the Exact Location is Unimportant
Invocation. • Tool Bar: Nearest icon
• Pull-Down: Shift + Right Click Nearest
• Keyboard:NEA or NEAR (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt15
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Osnap → QuadrantOsnap → Quadrant
Quadrant Osnap snaps to one of the four circle quadrant points located at north, south, east and west; or 90°, 270°, 0° and 180° respectively
Invocation. • Tool Bar: Quadrant icon
• Pull-Down:Shift + Right Click Quadrant
• Keyboard: QUA or QUAD (when picking)
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt16
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
GripsGrips
Quickly ID’s important points on Drawing Entities
Act as “Handles” for MOVING or MODIFYING the Entity
• Activate Grips by clicking on the Entities One at time
– No Active Command needed
– DeActive Grips w/ Esc Key
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt17
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Grip → MoveGrip → Move Grips → Move
• Pick the CENTER Grip point
• Mouse-Drag to Move
Note that the HeptaGon Does NOT have a Center Grip and Thus cannot be Grip-Dragged
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt18
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Grip → StretchGrip → Stretch Grips → Stretch
• Pick an EDGE Grip point
• Mouse-Drag to stretch
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt19
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Grip → ScaleGrip → Scale Grips → Scale
• Pick an Edge Grip Point
• Right-Click the Grip to invoke the PullDown Menu– Select Scale
• Drag the Grip Handle to Increase Scale
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt20
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Grip → MirrorGrip → Mirror Grips → Mirror
• Pick an Edge Grip Point
• Right-Click the Grip to invoke the PullDown Menu– Select Mirror
• Drag the Grip Handle to To Create “Mirror” Line
• Left-Click to Make Mirror Image
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt21
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
AutoCAD BlocksAutoCAD Blocks
A Block is a COLLECTION of all of the line and arc entities that create an object, Grouped & “Frozen” together to make ONE selectable object• Selecting one particular entity (such as a
midpoint of a line for example) will select ALL objects contained within the block.
• Blocks can be moved, rotated, mirrored etc and will always be treated by Autocad as a SINGLE Object
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt22
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Block Creation → ExampleBlock Creation → Example We’re Making an
electrical Schematic for ENGR43 and we need to use the Symbol for a polarized capacitor:• Many times
• On Several Drawings
Plan to speed the Circuit Design Process → Make a Block for the Cap Symbol:
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt23
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Insert BlockInsert Block With the Cap-Block
in-hand, can easily insert it whenever needed
Activate the INSERT Dialog Box by one of• Command Line
PullDown Menu
INSERT Dialog Box
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt24
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Insert Block Insert Block contcont
Click Browse
Click OK to Activate On-Screen Insertion Find the insertion Point on Screen and
then click to complete insertion
From List Pick Cap
Note the Options list• Insertion point
• Scale
• Rotation
• Block Unit
In this case accept Defaults
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt25
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Block: Scale & RotateBlock: Scale & Rotate
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt26
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Explode BlockExplode Block Explode command
“UNblocks" single objects back to their constituent parts • i.e., the command
returns blocks back to their individual component parts
Invocation
NONexploded Block
• Note the Single Grip at the INSERTION Pt
EXploded Block
• Grips for EVERY COMPONENT
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt27
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
WBlock (“Write” Block)WBlock (“Write” Block) Blocks made in a
given Dwg are part of the that Particular .dwg File• i.e., the Block is NOT
available to other Drawings
To make a Block “Globally” Available use the WBLOCK KeyBd Command
Wblock Dialog Box
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt28
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
WBlock (“Write” Block) WBlock (“Write” Block) contcont
Independent FileName
Return to Wblock Dialog Box, Click OK
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt29
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
WBlock (“Write” Block) WBlock (“Write” Block) contcont
Confirm the Write• Select the Block,
then hit Enter ()
Insert the Wblock into another Dwg Use INSERT to Activate Dialog Box
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt30
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
WBlock (“Write” Block) WBlock (“Write” Block) contcont
Find the Block FileName with the Std Windows box
Select the FileName then Click Open
• Note that ENTIRE DRAWINGS Can be Inserted withWBLOCK
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt31
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
All Done for TodayAll Done for Today
Some Blocksfrom my
Practice-Days
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt32
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Bruce Mayer, PELicensed Electrical & Mechanical Engineer
BMayer@ChabotCollege.edu
Engr/Math/Physics 25
AppendiAppendixx
6972 23 xxxxf
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt33
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Construct Cap BlockConstruct Cap Block
The LineWork Progression
BMayer@ChabotCollege.edu • ENGR-22_Lec-05_AdvanCmd-1.ppt34
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Build Cap-BlockBuild Cap-Block
Pull-Downs, and Dialog-Boxes
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