ENGR-22_Lec-05_AdvanCmd-1.ppt 1 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Bruce Mayer, PE Licensed Electrical & Mechanical Engineer Engineering 22 AutoCAD© Advanced Cmds-1

ENGR-22_Lec-05_AdvanCmd-1.ppt 2 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Learning 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”

ENGR-22_Lec-05_AdvanCmd-1.ppt 3 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Object 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.

ENGR-22_Lec-05_AdvanCmd-1.ppt 4 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap Utility  Osnaps in AutoCAD are EXTREMELY useful in that they allow the Designer to QUICKLY construct Accurate Entities Osnap ToolBar Osnap Toggle

ENGR-22_Lec-05_AdvanCmd-1.ppt 5 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap Dialogs  Activate the Osnap menu by Ctrl+[right- click]  Osnap Settings Suggest No Change

ENGR-22_Lec-05_AdvanCmd-1.ppt 6 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 7 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 8 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 9 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 10 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 11 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 12 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 13 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 14 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 15 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Osnap → 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)

ENGR-22_Lec-05_AdvanCmd-1.ppt 16 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Grips  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

ENGR-22_Lec-05_AdvanCmd-1.ppt 17 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Grip → 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 18 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Grip → Stretch  Grips → Stretch Pick an EDGE Grip point Mouse-Drag to stretch

ENGR-22_Lec-05_AdvanCmd-1.ppt 19 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Grip → 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 20 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Grip → 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 21 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics AutoCAD 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 22 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Block 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:

ENGR-22_Lec-05_AdvanCmd-1.ppt 23 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Insert 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 24 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Insert Block cont  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

ENGR-22_Lec-05_AdvanCmd-1.ppt 25 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Block: Scale & Rotate

ENGR-22_Lec-05_AdvanCmd-1.ppt 26 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Explode 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 27 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics 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

ENGR-22_Lec-05_AdvanCmd-1.ppt 28 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics WBlock (“Write” Block) cont  Independent FileName  Return to Wblock Dialog Box, Click OK

ENGR-22_Lec-05_AdvanCmd-1.ppt 29 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics WBlock (“Write” Block) cont  Confirm the Write Select the Block, then hit Enter (  )  Insert the Wblock into another Dwg  Use INSERT to Activate Dialog Box

ENGR-22_Lec-05_AdvanCmd-1.ppt 30 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics WBlock (“Write” Block) cont  Find the Block FileName with the Std Windows box  Select the FileName then Click Open Note that ENTIRE DRAWINGS Can be Inserted with WBLOCK

ENGR-22_Lec-05_AdvanCmd-1.ppt 31 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics All Done for Today Some Blocks from my Practice-Days

ENGR-22_Lec-05_AdvanCmd-1.ppt 32 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Bruce Mayer, PE Licensed Electrical & Mechanical Engineer Engr/Math/Physics 25 Appendix 

ENGR-22_Lec-05_AdvanCmd-1.ppt 33 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Construct Cap Block  The LineWork Progression

ENGR-22_Lec-05_AdvanCmd-1.ppt 34 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Build Cap-Block  Pull-Downs, and Dialog-Boxes   