[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt 1 Bruce Mayer, PE Engineering 22 – Engineering Design Graphics Bruce Mayer, PE Licensed Electrical & Mechanical Engineer [email protected] Engineering 22 Dimensionin Dimensionin g g Part-2 Part-2
Feb 25, 2016
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt1
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Bruce Mayer, PELicensed Electrical & Mechanical Engineer
Engineering 22
DimensionDimensioninging
Part-2Part-2
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt2
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Chp.8 Learning GoalsChp.8 Learning Goals Apply Proper/Conventional
Dimensioning Standards to Adequately Describe a Physical Object (e.g., a Machined Part) Such that It may be Properly Fabricated
Use AutoCAD to Dimension to Standards Orthographic Projections Views in Both Dimension-Line and BaseLine Forms
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt3
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
AutoCAD DimensioningAutoCAD Dimensioning AutoCAD does SEMI-AUTOMATIC
dimensioning• You select the features which should be
dimensioned and the location for each dimension
AutoCAD measures the distance in question and applies the appropriate dimension• Complete with arrowheads, extension
lines, and dimension lines
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt4
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Invoke ACAD DimensioningInvoke ACAD Dimensioning Turn on the Dimensioning ToolBar
Use the PullDown Menu
Type in Using Command Line dimlinear dimdiameter dimradius
dimbaseline dimcontinue dimordinate
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt5
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Live Dimension DemoLive Dimension Demo Let’s Dimension some simple parts
DimLine Example BaseLine (Ordinate)Example
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt6
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles - 1 Dimension Styles - 1 Lets copy from the
DimLine example the Part-Drawing, but NOT The Dims Using• Dim Layer-Off• Select-All &
CopyClip• Paste
Open New file using Acad.dwt
Then apply DimLines using DimLin to yield
The Dims are OUT of PROPORTION Relative to Object
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt7
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 2 Dimension Styles – 2 Fix this Lack of
ProPortion Using a Dimension Style• Estimate that Arrows
& Text are about 4X too Large
Adjust overall Proportions by
New Layer at ¼-Scale & 3-Decimals
Activates the DimStyle Dialog Box
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt8
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 2 Dimension Styles – 2 After Clicking New...
Name the New “Style” “_25X-3Plcs”
New Layer at ¼-Scale & 3-Decimals
Clicking Continue→ Automatically Directed to “Fit” Tab
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt9
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 3 Dimension Styles – 3 Next Select “Primary
Units” Tab Set “Unit Dimensions”
Precision → 0.000
Let’s Also Change the “Angle Dimensions” Precision → 0.0 (in degrees)
Click OK to accept Changes
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt10
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 4 Dimension Styles – 4 Taken Back to Dim
Style Mgr Select Style: “_25-
3Plcs” For this style “Set
Current” Click Close to Activate
the _25-3Plcs Style Now Use “Match
Properties” to Fix Dims
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt11
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 5 Dimension Styles – 5 Use DimLin to ADD
a part-width Dimension
Next, Pick the New-Dim, then Hit the MatchProp Tool
Note the New Dim 0.844
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt12
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 6 Dimension Styles – 6 Click the OverSize
Dims one-at-a-time with the MatchProp Paint Brush
Click All Dims to Yield
Still Some Style Probs
Too Far
Not Between Ext Lines
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt13
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 7 Dimension Styles – 7 Additional Style Fix
• Put Dim Between arrows When Possible
Again Active Dim Style Mgr• This Time Pick
Modify
Then Pick the Fit Tab
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt14
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 8Dimension Styles – 8 Under “Fit Options”
Pick “Arrows” Click OK to Return to
Dim Style Mgr Click Close to Activate
the Modifications to Style: “_25-3Plcs”
Find that The 0.219 Dim Fixed Automatically
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt15
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 9 Dimension Styles – 9 The Modified Result The OverSize Spacing
on the BaseLined Width Dims is a LEFTOVER from the “Standard” Dim Style
Erase the Width Distances and Re-Dim with the Modified Style: “_25-3Plcs”
Fixed Automatically
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt16
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Dimension Styles – 10Dimension Styles – 10 The Final Result of the Dim Style
Management
Looks Much Better
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt17
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Explore Dimension Styles Explore Dimension Styles I Suggest that you
spend some Time Exploring the Result of Dim Style Changes; e.g.
Can Now “Slide” the Dim-No. Location Lt-Rt or Up-Dwn
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt18
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Place Text Manually ResultPlace Text Manually Result Dim No. Slid to the Right in this case
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt19
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Caveat - Dim StylesCaveat - Dim Styles Dim Styles Have Frustrated The
Instructor (me) for Years Even with Extensive Hacking, I still get
Unpleasantly Surprised by the Result From Dim Style Management
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt20
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
All Done for TodayAll Done for Today
Be SUREto Read theAPPENDIX
0.23
40.23
40.84
4
0.09
0
0.21
9
0.437
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt21
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Bruce Mayer, PELicensed Electrical & Mechanical Engineer
Engr/Math/Physics 25
AppendiAppendixx 6972 23 xxxxf
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt22
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
DimLine Demo - 1 DimLine Demo - 1 1. Open File
• DimLine_Dim_Example_016_Hinge_Spacer_0305_.DWG
2. Strip Out Existing TitleBlk & Dims• Turn off all Layers
but DIM
3. Set Snap to 0.1”
4. DimLinear• TopLeft-Corner to
circle-ctr-line
5. DimBaseline to complete width dims
6. On Left-Edge Dim Ht to Hole (0.219)
7. On Rt-Edge Dim Part Ht (0.437)
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt23
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
DimLine Demo - 1DimLine Demo - 18. Make xline from
0.234 arrow9. On Side-V dim
0.09 thickness using nea to place arrows on xline
10.Erase the xline11.From Rt-Circ make
xline using @10,<-60
12.Leader to Circle Boundary, nea to xline
13.Leader Text making Ø w/ %%c• %%C0.219, 2X
14.Use Mtext to make Note• Light Break, All
Sharp Edges
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt24
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
DimLine Demo – 3 (result) DimLine Demo – 3 (result)
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt25
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 1 OrdDim Demo - 1 1. Open File
• BaseLine_Dim_Example_009_Drv-Cage_Hinge-Retainer_0305_.DWG
2. Strip Out Existing TitleBlk & Dims• Turn off all Layers
but DIM to delete dims
3. Set Snap to 0.1”
4. Call Fabricator and ask where the preferered Origin• They Say UPPER-
LEFT
5. Make xLines that coincide with the TOP and Left Edges
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt26
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 2OrdDim Demo - 26. Move the User
Coord System Origin to the intersection of the two xLines with the UCS command• Use the NEW
option
7. Offset Left the vertical xLine by 1”• For Y-Dims
8. Invoke Ordinate Dimensioning with DimOrd
9. Pick the top-Lt Chamfer, and move to offset xline• Shows 0.000 as
Dim
10.Pick Lt end of Lt-C’Sink CtrLine
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt27
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 3 OrdDim Demo - 3 11.Move Left to the
offset xLine using the “per” option• Sets Y-Dim to
0.375
12.Pick the Bot-Lt Chamfer, and move to offset xline using “per” option• Sets Y-Dim to
0.750
13.Offset UpWard the Horiz. xLine by 1”
14.Pick the Lt-Top Chamfer, and move to offset xline• Shows 0.000 as
Dim
15.Pick Top end of Lt-C’Sink CtrLine
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt28
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 4 OrdDim Demo - 4 16.Move Up to the
offset xLine using the “per” option• Sets X-Dim to
0.55017.Repeat 15 & 16 for
C-Sinks and Rt Edge to Complete all the X-dims• 2.800, 5.800, 8.050• 8.600
Next Dim Side-V 18.Make xLine with Lt-
Vertical Edge19.Offset Lt xLine by
1.00”20.Use DimLin to
“Arrow Dim” at xline Locations• Height = 0.750• Thickness = 0.90
21.Next Add-Notes
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt29
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 5 OrdDim Demo - 5 22.Make xLine at Bot-
Edge23.Offset-Down xLine
by 1.5”24.Make xLine at Rt-
Bot Chamf using “mid” & @10<-45
25.Leader from Chamf. MidPoint to Xline @45°
• Leader Text = “CHAM 0.12 X 45°, 4X”– Use “Alt248” to make
degrees symbol (°)
26.Make xLine from ctr of Lt-C’Sink with @10<-60
27.Leader from xLine and C’Sink intersection
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt30
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 6 OrdDim Demo - 6 • 2-Lines of Leader
Text as– %%C0.150 THRU,
CSK– %%C0.282 X 100°,
4X
28.Offset-up Top-Edge xLine by 2”
29.Use Leader to Label Part-No. Box with Reference to Note-2
See Next Slide for Result BEFORE Stripping Out the xLines
Note: When Possible Use ASME Y1.1 Abbreviations• See List in
Appendix
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt31
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 7OrdDim Demo - 7 Just Before Erasing Construction Lines
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt32
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
OrdDim Demo - 9OrdDim Demo - 9 Erasing Construction Lines using Erase
+ Crossing
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt33
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Insert Csink, Cbore, Depth SymsInsert Csink, Cbore, Depth Syms 2X click dim boxes to activate MText
dialog Box Got to Symbol tool
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt34
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Insert Csink, Cbore, Depth SymsInsert Csink, Cbore, Depth Syms GoTo OTHER on
PullDown Menu Activates the
Character Map with the current Font as default
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt35
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Insert Csink, Cbore, Depth SymsInsert Csink, Cbore, Depth Syms Pick AutoCAD’s
GDT Font Pick Select &
Copy Symbol
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt36
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Insert Csink, Cbore, Depth SymsInsert Csink, Cbore, Depth Syms Paste Symbol into MText box that
serves as text for the DimLeader
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt37
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt38
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Counter-Drilled HolesCounter-Drilled Holes
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt39
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Counter-Sunk HolesCounter-Sunk Holes
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt40
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Counter-Bored HolesCounter-Bored Holes
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Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Spot-Faced HolesSpot-Faced Holes
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt42
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
Threads & KnurlsThreads & Knurls
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt43
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
ChamfersChamfers
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt44
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
ASME Y1.1 Std AbbreviationsASME Y1.1 Std Abbreviations Alloy → ALY Aluminum → AL American Wire
Gage → AWG Assembly → ASSY Auxiliary → AUX Bevel → BEV Bill of Material →
B/M
Bolt Circle → BC Brass → BRS Broach → BRO Center Line → CL Chamfer → CHAM Circle → CIR Cold Drawn Steel →
CDS
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt45
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
ASME Y1.1 Std AbbreviationsASME Y1.1 Std Abbreviations Cold Rolled Steel →
CRS CounterBore →
CBORE CounterDrill →
CDRILL CounterPunch →
CPUNCH CounterSink → CSK
Degree → ° or DEG Design → DSGN Diameter → DIA Elevation → EL Engineer → ENGR Existing → EXIST. Flat Head → FH Gage or Gauge →
GA
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt46
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
ASME Y1.1 Std AbbreviationsASME Y1.1 Std Abbreviations Hardware → HDW Hot Rolled Steel →
HRS Inch → “ or IN Inside Diameter →
ID Keyway → KWY Laminate → LAM Material → MATL
Maximum → MAX Millimeter → MM Minimum → MIN Mounting → MTG National → NATL North → N Number → NO. Obsolete → OBS
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt47
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
ASME Y1.1 Std AbbreviationsASME Y1.1 Std Abbreviations Outside Diameter →
OD OverAll → OA Point → PT Polish → POL Pound → LB Pounds per Sq-Inch
→ PSI Push Button → PB
Radius → R Required → REQD Room Mean Square
→ RMS Round → RD Screw → SCR Sheet → SH Spot Face → SF Steel → STL
[email protected] • ENGR-22_Lec-17_Dimensioning-2.ppt48
Bruce Mayer, PE Engineering 22 – Engineering Design Graphics
ASME Y1.1 Std AbbreviationsASME Y1.1 Std Abbreviations Structural → STR Taper → TPR Thick → THK Thread → THD Through → THRU Tolerance → TOL Typical → TYP Versus → VS Volume → VOL
Washer → WASH. Week → WK Wrought → WRT Yard → YD
Feet → ‘ or FT Mile → MI