Difference between revisions of "Osdag/C3/Handling-3D-models-and-CAD-in-Osdag/English"

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'''Author''': Zahran Sajid (script), Anandajith TS (recording)
 
'''Author''': Zahran Sajid (script), Anandajith TS (recording)
  
−
'''Keywords: Osdag, member design, connection design, steel design optimisation, tension member, IS 800, CAD Model, FreeCAD, IGS, STEP, STL, BREP, video tutorial'''
+
'''Keywords''': Osdag, member design, connection design, steel design optimisation, tension member, IS 800, CAD Model, FreeCAD, IGS, STEP, STL, BREP, video tutorial.
−
 
+
−
 
+
−
 
+
−
 
+
  
  
Line 17: Line 13:
 
|| '''Narration'''
 
|| '''Narration'''
 
|-
 
|-
−
|| '''Slide: Title Slide'''
+
|| '''Slide''':  
−
|| Welcome to the spoken tutorial on ‘'''Handling 3D models and CAD in Osdag’'''
+
 
 +
'''Title Slide'''
 +
|| Welcome to the spoken tutorial on ‘'''Handling 3D models and CAD in Osdag’'''.
 
|-
 
|-
−
|| '''Slide: Learning Objectives'''
+
|| '''Slide''':  
 +
 
 +
'''Learning Objectives'''
 
|| In this tutorial, we will learn to,
 
|| In this tutorial, we will learn to,
−
* Handle '''3D''' '''CAD model''' in '''Osdag'''
+
 
−
* '''Export '''a '''CAD model''' from '''Osdag '''in standard file formats
+
* Handle '''3D CAD model''' in '''Osdag'''
−
* '''Import '''and view the '''CAD model''' in '''FreeCAD'''
+
* Export a '''CAD model''' from '''Osdag ''' in standard file formats
 +
* Import and view the '''CAD model''' in '''FreeCAD'''
  
  
 
|-
 
|-
−
|| '''Slide: System Requirement'''
+
|| '''Slide''':  
 +
 
 +
'''System Requirement'''
 
|| To record this tutorial, I am using
 
|| To record this tutorial, I am using
−
* '''Windows 11'''
+
* '''Windows 11''' operating system
−
* '''Osdag '''version '''v2021.02.a.a12f''', and
+
* '''Osdag ''' version '''v2021.02.a.a12f''', and
−
* '''FreeCAD '''version '''0.20'''
+
* '''FreeCAD ''' version 0.20
  
  
Line 40: Line 43:
  
 
[https://osdag.fossee.in/ https://spoken-tutorial.org]
 
[https://osdag.fossee.in/ https://spoken-tutorial.org]
−
|| To follow this tutorial you should have
+
|| To follow this tutorial you should have,
 
* '''Osdag''' installed on your system
 
* '''Osdag''' installed on your system
 
* Basic knowledge of '''structural steel design'''
 
* Basic knowledge of '''structural steel design'''
−
* Basic knowledge of any '''CAD '''manipulation software
+
* Basic knowledge of any '''CAD ''' manipulation software
  
  
 +
The prerequisite tutorials are available on this website.
 +
|-
 +
|| '''Slide''':
  
−
 
+
'''Code Files'''
−
 
+
−
The prerequisite''' '''tutorials are available on this website
+
−
|-
+
−
|| '''Slide: Code Files'''
+
 
||
 
||
 
* The files used in this tutorial are available in the '''Code Files''' link
 
* The files used in this tutorial are available in the '''Code Files''' link
Line 59: Line 61:
  
 
|-
 
|-
−
|| Point to the '''home page''' of the '''Tension Member Design >>''' Select '''Bolted to End Gusset module.'''
+
|| Point to the '''home page''' of the '''Tension Member Design >>
−
|| Let us switch to the '''home page''' of the '''Tension Member Design.'''
+
  
−
Select '''Bolted to End Gusset module.'''
+
''' Select '''Bolted to End Gusset module.'''
 +
|| Let us switch to the '''home page''' of the '''Tension Member Design'''.
  
−
Click on '''Start.'''
+
Select '''Bolted to End Gusset module'''.
 +
 
 +
Click on '''Start'''.
 
|-  
 
|-  
−
|| Click on '''File '''-> '''Load Input''' and select '''3Dmodel-sample-design.OSI'''
+
|| Click on '''File ''' >>
 +
 
 +
'''Load Input''' and select '''3Dmodel-sample-design.OSI'''
  
 
Click on the '''Design '''button
 
Click on the '''Design '''button
Line 72: Line 78:
 
Click on the disable '''Input Dock''' and '''Output Dock''' buttons
 
Click on the disable '''Input Dock''' and '''Output Dock''' buttons
  
−
 
+
|| Click on '''File ''' >> '''Load Input'''
−
 
+
−
|| Click on '''File '''-> '''Load Input'''
+
  
 
Select '''3Dmodel-sample-design.OSI'''
 
Select '''3Dmodel-sample-design.OSI'''
  
  
−
Click on the '''Design '''button..
+
Click on the '''Design ''' button.
  
  
−
Also, I have disabled '''Input '''and the '''Output Docks '''for a better view of the CAD''' window.'''
+
Also, I have disabled '''Input ''' and the '''Output Docks ''' for a better view of the ''' CAD window'''.
 
|-  
 
|-  
 
|| '''Osdag:'''
 
|| '''Osdag:'''
  
−
Point towards the '''CAD window '''and the '''Log messages window'''
+
Point towards the '''CAD window '''  
−
|| We see the '''CAD model''' and '''log messages '''as the design is successful'''.'''
+
 
 +
Point to '''Log messages window'''
 +
|| We see the '''CAD model''' and '''log messages ''' as the design is successful.
 
|-  
 
|-  
 
|| '''Osdag:'''
 
|| '''Osdag:'''
  
 
Point towards the '''3D CAD model'''
 
Point towards the '''3D CAD model'''
−
|| '''Osdag '''provides a '''3D CAD model''' for a better visualisation of the designed component.
+
|| '''Osdag ''' provides a '''3D CAD model''' for a better visualisation of the designed component.
 
|-  
 
|-  
 
|| '''CAD window:'''
 
|| '''CAD window:'''
  
−
Press the left '''mouse button '''and move the '''mouse '''sideways
+
Press the left '''mouse button ''', move the '''mouse ''' sideways
 
|| Rotate the '''CAD model''' by pressing the left '''mouse button''' moving it sideways.
 
|| Rotate the '''CAD model''' by pressing the left '''mouse button''' moving it sideways.
 
|-  
 
|-  
−
|| Only narration
+
|| Point to the model.
−
|| This allows us to view the '''model '''from any side in detail.
+
|| This allows us to view the model from any side in detail.
 
|-  
 
|-  
 
|| '''CAD window:'''
 
|| '''CAD window:'''
  
 
Scroll the '''mouse''' wheel up two times
 
Scroll the '''mouse''' wheel up two times
−
|| '''Zoom in '''the '''CAD model''' by scrolling up the '''mouse '''wheel.
+
|| '''Zoom in '''the '''CAD model''' by scrolling up the '''mouse ''' wheel.
 
|-  
 
|-  
 
|| '''CAD window:'''
 
|| '''CAD window:'''
  
−
Press the mouse wheel to see a 4 sided- arrow.
+
Press the mouse wheel to see a 4 sided-arrow.
  
−
Press and hold the mouse wheel and Drag the mouse to the right or left.
+
Press and hold the mouse wheel,
−
|| '''Pan '''the '''CAD model''' by pressing the wheel on the '''mouse '''and moving it sideways.
+
 
 +
Drag the mouse to the right or left.
 +
|| '''Pan '''the '''CAD model''' by pressing the wheel on the '''mouse ''' and moving it sideways.
 
|-  
 
|-  
−
|| Only narration
+
|| Point to the model.
−
|| This allows us to view each component of the '''model '''in detail.
+
|| This allows us to view each component of the model in detail.
 
|-  
 
|-  
 
|| '''CAD window:'''
 
|| '''CAD window:'''
Line 122: Line 130:
  
 
Press and hold the mouse wheel and Drag the mouse to the right or left.
 
Press and hold the mouse wheel and Drag the mouse to the right or left.
−
 
−
 
  
 
|| Again, press the wheel on the '''mouse '''and move it sideways to get back to the previous view.
 
|| Again, press the wheel on the '''mouse '''and move it sideways to get back to the previous view.
Line 130: Line 136:
  
 
Scroll the '''mouse '''wheel down two times
 
Scroll the '''mouse '''wheel down two times
−
|| Similarly, '''zoom out '''the '''CAD model''' by scrolling down the '''mouse '''wheel.
+
|| Similarly, '''zoom out ''' the '''CAD model''' by scrolling down the '''mouse ''' wheel.
 
|-  
 
|-  
 
|| '''CAD window:'''
 
|| '''CAD window:'''
  
 
Point toward the '''global axis '''
 
Point toward the '''global axis '''
−
|| The orientation of the '''CAD model '''in the '''global axis''' can be noted from the reference '''axis '''below.
+
|| The orientation of the '''CAD model ''' in the '''global axis''' can be noted from the reference '''axis ''' below.
 
|-  
 
|-  
 
|| '''CAD window:'''
 
|| '''CAD window:'''
Line 143: Line 149:
 
|-  
 
|-  
 
|| Point toward the '''Front View''', '''Side View''' and the '''Top View''' shortcut buttons
 
|| Point toward the '''Front View''', '''Side View''' and the '''Top View''' shortcut buttons
−
|| The '''2D''' '''view shortcut buttons''' are present''' '''above the '''CAD window'''.
+
|| The '''2D view shortcut buttons''' are present above the '''CAD window'''.
  
  
−
We can see the '''2D '''view of the '''CAD model''' by using the '''2D''' '''view shortcut buttons.'''
+
We can see the '''2D ''' view of the '''CAD model''' by using the '''2D view shortcut buttons'''.
 
|-  
 
|-  
 
|| Click on the '''Front View''' button
 
|| Click on the '''Front View''' button
−
|| To see the front view, click on the '''Front View''' '''shortcut button'''.
+
|| To see the front view, click on the '''Front View shortcut button'''.
 
|-  
 
|-  
 
|| Point to the view using the cursor.
 
|| Point to the view using the cursor.
Line 155: Line 161:
 
|-  
 
|-  
 
|| Click on the '''Side View''' button
 
|| Click on the '''Side View''' button
−
|| Now, to see the side view, click on the '''Side View''' '''shortcut button'''.
+
|| Now, to see the side view, click on the '''Side View shortcut button'''.
 
|-  
 
|-  
 
||Point to the view using the cursor.
 
||Point to the view using the cursor.
Line 166: Line 172:
 
|| We see the top view and it is oriented along the XY direction of the '''global axis'''.
 
|| We see the top view and it is oriented along the XY direction of the '''global axis'''.
 
|-  
 
|-  
−
|| Point toward the '''Member''', '''Plate '''and '''Endplate buttons'''
+
|| Point toward the '''Member''', '''Plate ''' and '''Endplate buttons'''.
−
|| We can isolate and view the individual components of the '''3D CAD model.'''
+
|| We can isolate and view the individual components of the '''3D CAD model'''.
  
  
−
This can be done by using the components '''button checkbox''' above the '''CAD window'''.
+
This can be done by using the components '''button''' above the '''CAD window'''.
 
|-  
 
|-  
 
|| Click on the '''Member button.'''
 
|| Click on the '''Member button.'''
Line 186: Line 192:
  
 
Point toward the '''CAD model'''
 
Point toward the '''CAD model'''
−
|| We see an isolated '''CAD model''' of the gusset and '''intermittent connection''' plates with bolts.
+
|| We see an isolated '''CAD model''' of the '''gusset''' and '''intermittent connection''' plates with bolts.
 
|-  
 
|-  
 
|| Click on the '''Endplate button'''
 
|| Click on the '''Endplate button'''
Line 194: Line 200:
  
 
Point toward the '''CAD model'''
 
Point toward the '''CAD model'''
−
|| We see an isolated '''CAD model''' of the gusset plate with bolts.
+
|| We see an isolated '''CAD model''' of the '''gusset plate''' with bolts.
 
|-  
 
|-  
 
|| '''Rotate''', '''Pan '''and '''Zoom '''the component
 
|| '''Rotate''', '''Pan '''and '''Zoom '''the component
−
|| We can '''Rotate''', '''Pan '''or '''Zoom '''the individual components as well.
+
|| We can Rotate , '''Pan''' or '''Zoom ''' the individual components as well.
 
|-  
 
|-  
 
|| Click on the '''Model button'''
 
|| Click on the '''Model button'''
−
|| I will click on the '''Model button '''to return to the default view of the model.
+
|| I will click on the '''Model button ''' to return to the default view of the model.
 
|-  
 
|-  
 
|| Click on the '''Graphics '''menu
 
|| Click on the '''Graphics '''menu
−
|| Alternately, we can perform all of the above actions using the '''Graphics '''menu
+
|| Alternately, we can perform all of the above actions using the '''Graphics ''' menu.
 
|-  
 
|-  
 
|| Only Narration
 
|| Only Narration
−
|| However, it is recommended to use the mouse and checkboxes
+
|| However, it is recommended to use the mouse and check boxes.
 
|-  
 
|-  
 
|| Only Narration
 
|| Only Narration
Line 212: Line 218:
  
  
−
Users can import the '''CAD '''files in any standard '''CAD '''manipulation software.
+
Users can import the '''CAD ''' files in any standard '''CAD ''' manipulation software.
 
|-  
 
|-  
 
|| Only Narration
 
|| Only Narration
Line 222: Line 228:
 
|| '''Bolted to End Gusset GUI:'''
 
|| '''Bolted to End Gusset GUI:'''
  
−
Click on '''File>>''' '''Save 3D model'''
+
Click on '''File''' >> '''Save 3D model'''
 
|| To save the generated '''CAD model''', click on the '''File menu''' present at the top left corner.  
 
|| To save the generated '''CAD model''', click on the '''File menu''' present at the top left corner.  
−
And, click on the '''Save 3D model '''from the list'''.'''
+
 
 +
And, click on the '''Save 3D model ''' from the list.  
 
|-  
 
|-  
 
|| '''Export Window:'''
 
|| '''Export Window:'''
Line 233: Line 240:
 
|| '''Export Window:'''
 
|| '''Export Window:'''
  
−
Point toward the '''Save as type dropdown'''
+
Point toward the '''Save as type drop-down'''
−
|| We see the '''Save as type dropdown '''below.
+
|| We see the '''Save as type drop-down '''below.
  
  
Line 241: Line 248:
 
|| '''Export Window:'''
 
|| '''Export Window:'''
  
−
Click on '''Save as type dropdown list'''
+
Click on '''Save as type drop-down list'''
−
|| Click on the '''Save as type dropdown list '''to '''expand''' it.
+
|| Click on the '''Save as type drop-down list ''' to expand it.
 
|-  
 
|-  
−
|| '''Save as type dropdown list:'''
+
|| '''Save as type drop-down list:'''
  
 
Point toward the list
 
Point toward the list
Line 255: Line 262:
  
 
|-  
 
|-  
−
|| Only narration
+
|| Point to '''IGS '''file format.
 
|| Let us try to save the model in the '''IGS '''file format.
 
|| Let us try to save the model in the '''IGS '''file format.
 
|-  
 
|-  
−
|| '''Save as type dropdown list:'''
+
|| '''Save as type drop-down list:'''
  
 
Click on the '''IGS '''option
 
Click on the '''IGS '''option
Line 267: Line 274:
 
|-  
 
|-  
 
|| Point toward the '''File name textbox'''
 
|| Point toward the '''File name textbox'''
−
|| This can be done by typing the file name in the '''File name textbox.'''
+
|| This can be done by typing the file name in the '''File name textbox'''.
 
|-  
 
|-  
 
|| '''File name textbox:'''
 
|| '''File name textbox:'''
  
 
Type '''Tension-member-bolted'''
 
Type '''Tension-member-bolted'''
−
|| I will name the file as '''Tension-member-bolted.'''
+
|| I will name the file as '''Tension-member-bolted'''.
  
  
−
You may choose a convenient '''file name '''of your choice.
+
You may choose a convenient '''file name ''' of your choice.
 
|-  
 
|-  
 
|| Only narration
 
|| Only narration
Line 283: Line 290:
  
 
Choose '''Osdag-workspace directory'''
 
Choose '''Osdag-workspace directory'''
−
|| I will choose the '''Osdag hyphen workspace directory '''to save the model.
+
|| I will choose the '''Osdag hyphen workspace directory ''' to save the model.
  
  
Line 291: Line 298:
  
 
Click on '''Save'''
 
Click on '''Save'''
−
|| Click on the '''Save button '''to save the model.
+
|| Click on the '''Save button ''' to save the model.
 
|-  
 
|-  
 
|| '''Information pop-up:'''
 
|| '''Information pop-up:'''
Line 301: Line 308:
  
 
Click on '''Ok'''
 
Click on '''Ok'''
−
|| Click on '''Ok '''to acknowledge.
+
|| Click on '''Ok ''' to acknowledge.
 
|-  
 
|-  
 
|| Only narration
 
|| Only narration
−
|| Let us now '''import '''the '''CAD model''' and do some post-processing.
+
|| Let us now '''import ''' the '''CAD model''' and do some post-processing.
 
|-  
 
|-  
 
|| Only narration
 
|| Only narration
Line 310: Line 317:
  
  
−
Users can use '''AutoCAD '''or any other software of their choice.
+
Users can use '''AutoCAD ''' or any other software of their choice.
 
|-  
 
|-  
 
|| '''FreeCAD GUI:'''
 
|| '''FreeCAD GUI:'''
Line 317: Line 324:
 
|| '''FreeCAD GUI:'''
 
|| '''FreeCAD GUI:'''
  
−
Click on '''File>>''' '''New'''
+
Click on '''File''' >> '''New'''
−
|| Go to the '''File menu''' present at the top left corner, and select '''New.'''
+
|| Go to the '''File menu''' present at the top left corner, and select '''New'''.
 
|-  
 
|-  
 
|| Only Narration
 
|| Only Narration
−
|| A new '''FreeCAD application window '''will open.
+
|| A new '''FreeCAD application window ''' will open.
  
  
Line 328: Line 335:
 
|| '''FreeCAD GUI:'''
 
|| '''FreeCAD GUI:'''
  
−
Click on '''File>>''' '''Import'''
+
Click on '''File''' >> '''Import'''.
−
|| Go to the '''File menu''' present at the top left corner, and select '''Import.'''
+
|| Go to the '''File menu''' present at the top left corner, and select '''Import'''.
 
|-  
 
|-  
 
|| '''Import File Window:'''
 
|| '''Import File Window:'''
Line 344: Line 351:
  
 
Click on '''Open'''
 
Click on '''Open'''
−
|| And, click on the '''Open button '''below'''.'''
+
|| And, click on the '''Open button '''below'''.
 
|-  
 
|-  
 
|| Only narration
 
|| Only narration
Line 354: Line 361:
  
 
Click on '''Front Button'''
 
Click on '''Front Button'''
−
|| Click on the '''Front View Button '''present in the toolbar on top of the 3D view window.  
+
|| Click on the '''Front View Button ''' present in the toolbar on top of the 3D view window.  
 
|-  
 
|-  
−
|| Only narration
+
|| Point to the model.
 
|| We see the front view of the model.
 
|| We see the front view of the model.
 
|-  
 
|-  
Line 362: Line 369:
  
 
Click on '''Top Button'''
 
Click on '''Top Button'''
−
|| Similarly, click on the '''Top View Button '''present next to the '''Front View Button.'''
+
|| Similarly, click on the '''Top View Button '''present next to the '''Front View Button'''.
 
|-  
 
|-  
−
|| Only narration
+
|| Point to the model.
 
|| We see the top view of the model.
 
|| We see the top view of the model.
 
|-  
 
|-  
Line 370: Line 377:
  
 
Click on '''Right Button'''
 
Click on '''Right Button'''
−
|| Next, click on the '''Right View Button '''present next to the '''Front View Button.'''
+
|| Next, click on the '''Right View Button '''present next to the '''Front View Button'''.
 
|-  
 
|-  
−
|| Only narration
+
|| Point to the model.
 
|| We see the right side view of the model.
 
|| We see the right side view of the model.
 
|-  
 
|-  
−
|| Only narration
+
|| Point to the tool.
−
|| Let us measure the dimension of the section using the '''Measure distance tool.'''
+
|| Let us measure the dimension of the section using the '''Measure distance tool'''.
 
|-  
 
|-  
 
|| '''FreeCAD GUI:'''
 
|| '''FreeCAD GUI:'''
  
−
Scroll up using the scroll wheel
+
Scroll up using the scroll wheel.
 
|| Zoom in on the section by scrolling up on the mouse wheel.
 
|| Zoom in on the section by scrolling up on the mouse wheel.
 
|-  
 
|-  
Line 391: Line 398:
  
 
Click on '''Measure distance tool'''
 
Click on '''Measure distance tool'''
−
|| Select the '''measure distance tool '''from the toolbar above the 3D view of the model.
+
|| Select the '''measure distance tool ''' from the toolbar above the 3D view of the model.
 
|-  
 
|-  
 
|| '''FreeCAD GUI:'''
 
|| '''FreeCAD GUI:'''
  
 
Click on top and bottom outer edges of the section on the right
 
Click on top and bottom outer edges of the section on the right
−
|| While having the '''measure distance tool '''active click on the outer edges of the section on the right.
+
|| While having the '''measure distance tool''' active click on the outer edges of the section on the right.
 
|-  
 
|-  
 
|| '''FreeCAD GUI:'''
 
|| '''FreeCAD GUI:'''
Line 412: Line 419:
 
Let us summarise.
 
Let us summarise.
 
|-  
 
|-  
−
|| '''Slide: Summary'''
+
|| '''Slide''':
−
 
+
  
 +
'''Summary'''
  
 
|| In this tutorial, we have
 
|| In this tutorial, we have
−
* Handled the '''3D''' '''CAD model''' in '''Osdag'''
+
* Handled the '''3D CAD model''' in '''Osdag'''
 
* Exported a '''CAD model''' from '''Osdag '''in a standard file format
 
* Exported a '''CAD model''' from '''Osdag '''in a standard file format
 
* Imported and viewed the '''CAD model''' in '''FreeCAD'''
 
* Imported and viewed the '''CAD model''' in '''FreeCAD'''
Line 423: Line 430:
  
 
|-
 
|-
−
|| '''Slide: Assignment'''
+
|| '''Slide''':  
 +
 
 +
'''Assignment'''
 
|| As an '''assignment''', do the following
 
|| As an '''assignment''', do the following
 
* Explore the Change background option in the Graphics menu
 
* Explore the Change background option in the Graphics menu
Line 432: Line 441:
  
 
|-
 
|-
−
|| '''Slide: About Spoken Tutorial Project'''
+
|| '''Slide''':  
 +
 
 +
'''About Spoken Tutorial Project'''
 
|| The video at the following link summarises the Spoken Tutorial Project.
 
|| The video at the following link summarises the Spoken Tutorial Project.
  
Line 438: Line 449:
 
Please download and watch it.
 
Please download and watch it.
 
|-
 
|-
−
|| '''Slide:Spoken Tutorial Workshops'''
+
|| '''Slide:
 +
 
 +
'''Spoken Tutorial Workshops'''
 
|| The Spoken Tutorial Project team conducts workshops and gives certificates.
 
|| The Spoken Tutorial Project team conducts workshops and gives certificates.
  
Line 444: Line 457:
 
For more details, please write to us.
 
For more details, please write to us.
 
|-
 
|-
−
|| '''Slide:Answers for THIS Spoken Tutorial'''
+
|| '''Slide''':
 +
 
 +
'''Answers for THIS Spoken Tutorial'''
 
|| Please post your timed queries in this forum.
 
|| Please post your timed queries in this forum.
 
|-
 
|-
−
|| '''Slide: FOSSEE Forum'''
+
|| '''Slide''':  
 +
 
 +
'''FOSSEE Forum'''
 
|| For any general or technical questions on '''Osdag''', visit the '''FOSSEE forum''' and post your question.
 
|| For any general or technical questions on '''Osdag''', visit the '''FOSSEE forum''' and post your question.
 
|-
 
|-
−
|| '''Slide: Sample Design Examples'''
+
|| '''Slide''':
−
 
+
  
 +
'''Sample Design Examples'''
  
  
Line 464: Line 481:
  
 
|-
 
|-
−
|| '''Slide: Acknowledgements'''
+
|| '''Slide''':  
 +
 
 +
'''Acknowledgements'''
 
|| The '''Spoken Tutorial''' project is funded by the '''Ministry of Education''', Government of India.
 
|| The '''Spoken Tutorial''' project is funded by the '''Ministry of Education''', Government of India.
 
|-
 
|-
−
|| '''Slide: Thank you'''
+
|| '''Slide''':  
 +
 
 +
'''Thank you'''
 
|| This is Anandajith TS,FOSSEE, IIT Bombay signing off.
 
|| This is Anandajith TS,FOSSEE, IIT Bombay signing off.
  

Latest revision as of 15:38, 1 November 2023

Title of the script: Handling 3D models and CAD in Osdag

Author: Zahran Sajid (script), Anandajith TS (recording)

Keywords: Osdag, member design, connection design, steel design optimisation, tension member, IS 800, CAD Model, FreeCAD, IGS, STEP, STL, BREP, video tutorial.



Visual Cue Narration
Slide:

Title Slide

Welcome to the spoken tutorial on ‘Handling 3D models and CAD in Osdag’.
Slide:

Learning Objectives

In this tutorial, we will learn to,
  • Handle 3D CAD model in Osdag
  • Export a CAD model from Osdag in standard file formats
  • Import and view the CAD model in FreeCAD


Slide:

System Requirement

To record this tutorial, I am using
  • Windows 11 operating system
  • Osdag version v2021.02.a.a12f, and
  • FreeCAD version 0.20


Slide: Pre-requisites


https://spoken-tutorial.org

To follow this tutorial you should have,
  • Osdag installed on your system
  • Basic knowledge of structural steel design
  • Basic knowledge of any CAD manipulation software


The prerequisite tutorials are available on this website.

Slide:

Code Files

  • The files used in this tutorial are available in the Code Files link
  • Please download and extract them
  • Make a copy and then use them while practising


Point to the home page of the Tension Member Design >>

Select Bolted to End Gusset module.

Let us switch to the home page of the Tension Member Design.

Select Bolted to End Gusset module.

Click on Start.

Click on File >>

Load Input and select 3Dmodel-sample-design.OSI

Click on the Design button

Click on the disable Input Dock and Output Dock buttons

Click on File >> Load Input

Select 3Dmodel-sample-design.OSI


Click on the Design button.


Also, I have disabled Input and the Output Docks for a better view of the CAD window.

Osdag:

Point towards the CAD window

Point to Log messages window

We see the CAD model and log messages as the design is successful.
Osdag:

Point towards the 3D CAD model

Osdag provides a 3D CAD model for a better visualisation of the designed component.
CAD window:

Press the left mouse button , move the mouse sideways

Rotate the CAD model by pressing the left mouse button moving it sideways.
Point to the model. This allows us to view the model from any side in detail.
CAD window:

Scroll the mouse wheel up two times

Zoom in the CAD model by scrolling up the mouse wheel.
CAD window:

Press the mouse wheel to see a 4 sided-arrow.

Press and hold the mouse wheel,

Drag the mouse to the right or left.

Pan the CAD model by pressing the wheel on the mouse and moving it sideways.
Point to the model. This allows us to view each component of the model in detail.
CAD window:

Press the mouse wheel to see a 4 sided- arrow.

Press and hold the mouse wheel and Drag the mouse to the right or left.

Again, press the wheel on the mouse and move it sideways to get back to the previous view.
CAD window:

Scroll the mouse wheel down two times

Similarly, zoom out the CAD model by scrolling down the mouse wheel.
CAD window:

Point toward the global axis

The orientation of the CAD model in the global axis can be noted from the reference axis below.
CAD window:

Point toward the global axis at the bottom right corner.

The X, Y and Z axis are marked and colour coded for a quick reference.
Point toward the Front View, Side View and the Top View shortcut buttons The 2D view shortcut buttons are present above the CAD window.


We can see the 2D view of the CAD model by using the 2D view shortcut buttons.

Click on the Front View button To see the front view, click on the Front View shortcut button.
Point to the view using the cursor. We see the front view and it is oriented along the XZ direction of the global axis.
Click on the Side View button Now, to see the side view, click on the Side View shortcut button.
Point to the view using the cursor. We see the side view and it is oriented along the YZ direction of the global axis.
Click on the Top View button Similarly, to see the top view, click on the Top View shortcut button.
Point to the view using the cursor. We see the top view and it is oriented along the XY direction of the global axis.
Point toward the Member, Plate and Endplate buttons. We can isolate and view the individual components of the 3D CAD model.


This can be done by using the components button above the CAD window.

Click on the Member button. To isolate and view the member, click on the Member button.
CAD window:

Point toward the CAD model

We see an isolated CAD model of the member.
Click on the Plate button Now, to view the plate, click on the Plate button.
CAD window:

Point toward the CAD model

We see an isolated CAD model of the gusset and intermittent connection plates with bolts.
Click on the Endplate button Similarly, to view the end plate, click on the Endplate button.
CAD window:

Point toward the CAD model

We see an isolated CAD model of the gusset plate with bolts.
Rotate, Pan and Zoom the component We can Rotate , Pan or Zoom the individual components as well.
Click on the Model button I will click on the Model button to return to the default view of the model.
Click on the Graphics menu Alternately, we can perform all of the above actions using the Graphics menu.
Only Narration However, it is recommended to use the mouse and check boxes.
Only Narration Osdag allows to save the 3D CAD model in various standard CAD file formats.


Users can import the CAD files in any standard CAD manipulation software.

Only Narration Thus allowing us to perform various post-processing activities.
Only Narration Let us save the 3D CAD model for this module.
Bolted to End Gusset GUI:

Click on File >> Save 3D model

To save the generated CAD model, click on the File menu present at the top left corner.

And, click on the Save 3D model from the list.

Export Window:

Point toward the Export Window

The Export Window will open.
Export Window:

Point toward the Save as type drop-down

We see the Save as type drop-down below.


It allows us to choose the format in which we wish to save the CAD model.

Export Window:

Click on Save as type drop-down list

Click on the Save as type drop-down list to expand it.
Save as type drop-down list:

Point toward the list

We can see the available file formats, these are:
  • IGS
  • STEP
  • STL, and
  • BREP


Point to IGS file format. Let us try to save the model in the IGS file format.
Save as type drop-down list:

Click on the IGS option

Select and click on IGS to choose it.
Only narration Let us now specify a suitable file name.
Point toward the File name textbox This can be done by typing the file name in the File name textbox.
File name textbox:

Type Tension-member-bolted

I will name the file as Tension-member-bolted.


You may choose a convenient file name of your choice.

Only narration Let us now choose a suitable directory to save the file.
Export Window:

Choose Osdag-workspace directory

I will choose the Osdag hyphen workspace directory to save the model.


You may choose a convenient location of your choice.

Export Window:

Click on Save

Click on the Save button to save the model.
Information pop-up:

Point toward Information pop-up

A confirmation message will be displayed once the model is successfully saved.
Information pop-up:

Click on Ok

Click on Ok to acknowledge.
Only narration Let us now import the CAD model and do some post-processing.
Only narration For this, I will use FreeCAD.


Users can use AutoCAD or any other software of their choice.

FreeCAD GUI: I have opened FreeCAD.
FreeCAD GUI:

Click on File >> New

Go to the File menu present at the top left corner, and select New.
Only Narration A new FreeCAD application window will open.


Let us now import the saved CAD model.

FreeCAD GUI:

Click on File >> Import.

Go to the File menu present at the top left corner, and select Import.
Import File Window:

Navigate to Osdag_workspace directory

Click once on the Osdag hyphen workspace directory where I have saved the model.
Import File Window:

Click on Tension_member_bolted.igs

Click once on the Tension hyphen member hyphen bolted dot igs file to select it.
Import File Window:

Click on Open

And, click on the Open button below.
Only narration

Point to the model.

We see the CAD model in FreeCAD.
FreeCAD GUI:

Click on Front Button

Click on the Front View Button present in the toolbar on top of the 3D view window.
Point to the model. We see the front view of the model.
FreeCAD GUI:

Click on Top Button

Similarly, click on the Top View Button present next to the Front View Button.
Point to the model. We see the top view of the model.
FreeCAD GUI:

Click on Right Button

Next, click on the Right View Button present next to the Front View Button.
Point to the model. We see the right side view of the model.
Point to the tool. Let us measure the dimension of the section using the Measure distance tool.
FreeCAD GUI:

Scroll up using the scroll wheel.

Zoom in on the section by scrolling up on the mouse wheel.
FreeCAD GUI:

Press the middle mouse button and move the mouse sideways

Pan the model mouse by pressing the middle mouse button and moving it.
FreeCAD GUI:

Click on Measure distance tool

Select the measure distance tool from the toolbar above the 3D view of the model.
FreeCAD GUI:

Click on top and bottom outer edges of the section on the right

While having the measure distance tool active click on the outer edges of the section on the right.
FreeCAD GUI:

Point to distance value next to section

We can see that the depth of the section is measured to be 125 millimetres for LC 125.
Only narration We have measured the depth of the section using FreeCAD’s measuring tool.
Only narration This brings us to the end of this tutorial.


Let us summarise.

Slide:

Summary

In this tutorial, we have
  • Handled the 3D CAD model in Osdag
  • Exported a CAD model from Osdag in a standard file format
  • Imported and viewed the CAD model in FreeCAD


Slide:

Assignment

As an assignment, do the following
  • Explore the Change background option in the Graphics menu
  • Save the 3D CAD models in STEP, STL and BREP file formats
  • Import the model in any CAD manipulation software
  • Perform some post-processing activity like measuring the size of the members, etc.


Slide:

About Spoken Tutorial Project

The video at the following link summarises the Spoken Tutorial Project.


Please download and watch it.

Slide:

Spoken Tutorial Workshops

The Spoken Tutorial Project team conducts workshops and gives certificates.


For more details, please write to us.

Slide:

Answers for THIS Spoken Tutorial

Please post your timed queries in this forum.
Slide:

FOSSEE Forum

For any general or technical questions on Osdag, visit the FOSSEE forum and post your question.
Slide:

Sample Design Examples


https://osdag.fossee.in/resources/sample-design

  • The Osdag team at FOSSEE creates sample design examples for self-learning
  • These examples can be practised using the Osdag software
  • For more details, please visit the link below

https://osdag.fossee.in/resources/sample-design


Slide:

Acknowledgements

The Spoken Tutorial project is funded by the Ministry of Education, Government of India.
Slide:

Thank you

This is Anandajith TS,FOSSEE, IIT Bombay signing off.


Thanks for joining.

Contributors and Content Editors

Anandajitht, Danish, Madhurig

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