View source for FreeCAD/C2/Modifications-and-Dimensioning/English

'''Title of script''': '''Modifications and Dimensioning'''

'''Author: ''' Rani Parvathy and N Saithya Narayanan

'''Keywords: '''Freecad, video tutorial, fillet, chamfer, Angular, leader line, split line, continue line, intersection, snap tools.


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| | '''Visual Cue'''
|| '''Narration'''
|-
|| '''Slide Number 1'''

'''Title Slide '''
|| Welcome to the tutorial on '''Modifications and Dimensioning'''.
|-
|| '''Slide Number 2'''

'''Learning Objectives'''


|| In this tutorial, we will learn to,


* Create multiple lines 
* Split a line
* Use snap tools when adding intersections of lines
* Add fillet and add chamfer


|-
|| '''Slide Number 3'''

'''Learning Objectives'''
|| 
* Measure an angular dimension
* Add a leader line


|-
|| '''Slide Number 4'''

'''System and Software Requirement'''


|| To record this tutorial, I am using


* '''Windows 11 OS''' and 
* '''FreeCAD version 0.21.1'''

|-
|| '''Slide Number 5'''

'''Pre-requisites'''


'''https://www.spoken-tutorial.org'''



|| To follow this tutorial, 

* Learners must be familiar with the '''FreeCAD''' interface.
* For pre-requisite tutorials, please visit this site.


|-
|| Open '''FreeCAD'''. 

Go to '''Draft '''workbench,Top view and orthographic for setting.

Select Draw a '''Line '''tool.
|| Open '''FreeCAD.'''

Click on''' Create New '''to start a new file.

Go to '''Draft''' workbench. 

Make sure the '''orthographic''' and '''top view''' are selected.


Then select the '''line tool'''.
|-
|| Check the box for the '''continuous line''' option in '''combo view'''.
|| Notice the changes in the '''Combo view '''panel. 


Check the box for the '''continue '''option.
|-
|| Cursor on the '''continue''' option.
|| We can draw multiple discontinuous lines or continuous lines now.


We don’t have to select the line tool each time to draw a different line.

To demonstrate I will add a few lines.
|-
|| Press the '''escape key'''.
|| Several line objects are added on the combo view as we add more lines.


To exit this mode, press the '''escape key'''.
|-
|| Select one of the lines and select the '''split tool'''.
|| Next, select one of the lines and select the '''split tool'''.
|-
|| Place the cursor on the line and left click.


Cursor on the 2 split line objects in '''combo view'''.
|| Place the cursor on the line and left click to '''split''' the line at that point.


Notice the 2 line objects in the '''combo view''' panel.
|-
|| Cursor on '''snap tool''' icons.


Switch on 8 of the '''snap tools'''.
|| Next, let’s learn about snap tools in line drawings.


I will click on 8 of the '''snap tools''' as seen.


It is useful to keep them on as you progress in your drawing skills. 
|-
|| 
|| Next, let’s create a drawing to learn the options present in snap tools. 
|-
|| Choose the '''line tool''' and check the box for '''continue'''.
|| Choose the '''line tool''' and check the box for '''continue'''.
|-
|| Draw one horizontal line.


Check the '''snap end point tool''' and draw a line above and below it.
|| Let’s draw one horizontal line.


Check the '''snap end point tool''' and draw two lines.
|-
|| Cursor on '''snap ortho tool'''.


Move the cursor to draw a line.
|| For this feature to be visible, the '''snap ortho tool''' is in the '''on''' mode.


Then we know that the line is horizontal.


Move the cursor to draw a line.
|-
|| Video editing, highlight blue + symbol
|| Notice the blue color + symbol, with the + symbol of the cursor. 


The blue + symbol appears only when the line is horizontal or vertical.
|-
|| Move the cursor close to the end of the line.


Highlight arrow 
|| Move the cursor close to the end of the line.


Notice a White dot on the line and a blue guide.
|-
|| Cursor on '''Continue''' in '''combo view'''.
|| Since the '''Continue''' option is on, we can continue to draw line.


Let’s add labels on the line.


Notice the '''snap end-point''' is on in the '''snap tools'''.
|-
|| Click on the '''text tool'''.


Move the cursor near the point to where the annotation is desired.
|| Click on the '''text tool'''.


Move the cursor near the point to where the annotation is desired.
|-
|| Highlight the white dot (arrow or box) while editing.


Cursor on the text dialog box.
|| Notice the White dot and left click. 


A dialog box to type custom text appears on the left.
|-
|| Cursor on the '''Data''' tab in the left panel.
|| I will type A in this.

If you don’t see the label sign, go to the '''data''' tab and increase the font size.
|-
|| Type A for text.


Cursor on the Other end of line, which is to be labeled as C.
||  Now pause the video.


Repeat this procedure to label the other end of the line with C.
|-
|| Cursor on '''snap mid-point'''.


Cursor on the mid point of the line.

|| Notice that the '''snap mid-point '''is '''on'''.


We can also label the mid-point of the line in the same way.


Pause video and label the mid-point as B.
|-
|| Click on the '''line tool'''.

Cursor on '''snap perpendicular'''. If it is not on, click on it.
|| Click on the '''line tool''' again and make sure the '''snap perpendicular''' is on.
|-
|| Place the cursor on the canvas.


Move the cursor towards the line to see blue + sign.



|| Place the cursor on the canvas and move it towards the line.


When we see the blue ‘+’ sign, we know that the new line will be perpendicular.
|-
|| Hover cursor near the possible intersection.
|| Pause the video, and create a label called D, at this new line intersection.
|-
|| Cursor on '''snap intersection''' tool.


Cursor on all other snap tools and turn them off.
|| Next let’s learn about '''snap intersection'''.


For this, we first have to turn off all other snap tools.
|-
|| Move the cursor to near the intersection of the two lines.
|| Move the cursor to near the intersection of the two lines.
|-
|| Highlight the blue color cross.


Arrow point to intersection while editing.
|| The blue cross shows the intersection between the two lines.

Let’s create another line from the intersection point.
|-
|| Left click and move the cursor.


HIghlight changes in the left panel in editing.
|| Left click and move the cursor.


Notice the line properties change in the left panel.
|-
|| Type 45 for '''angle''' in the left panel and press the '''Enter''' key.


Cursor at the line intersection.
|| Type the angle to be 45 degrees and press the Enter key.


Notice the intersecting line at 45 degrees.
|-
|| Move cursor to the end of both the lines and label E and F.


(This part will get shortened during video editing).
|| Pause the video and create two more labels of the remaining ends of the line.


I will label them E and F.
|-
|| Click on the '''square tool'''.

Then draw a rectangle in canvas.
|| Let’s draw a rectangle next.
|-
|| Cursor on the corner of the '''rectangle'''.


Cursor over '''fillet tool''' to show '''tooltip'''.



|| Edges and faces are often rounded off in '''engineering''' drawing.


This practice aid to reduce stress points and are called '''fillet''' or '''chamfer'''.
|-
|| Click on downgrade twice to give individual edges.


Highlight the object changing to edges.
|| Rectangle is a closed loop single entity.


Hence, first downgrade the object to individual lines before '''fillet''' is applied.
|-
|| Select two neighboring edges or lines.


Type 10 for '''fillet''' value and press the '''Enter key'''.
|| Next, select two neighboring edges or lines.

Click on '''fillet.'''

Change the '''fillet''' value to 10 mm and press the '''Enter key'''.
|-
|| Cursor over the '''fillet'''.
|| Notice the sharp edge is now smoothened over.


Notice that both the original object and the '''fillet''' are present now.
|-
|| Again, select two adjacent lines, and click on '''fillet'''.
|| Again, select two adjacent lines, and click on '''fillet'''.
|-
|| Check the box for '''delete the original object'''.
|| Next, check the box for '''delete the original object'''.
|-
|| Type 12 in '''fillet form''' and press the '''Enter''' key.
|| Enter 12 for '''fillet''' and notice that only filet remains.
|-
|| Cursor on the next corner of the rectangle.


Click on the '''fillet''' tool.
|| Next, pick another set of adjacent lines in the rectangle.


Then choose the '''fillet''' tool.
|-
|| Check the box for both '''chamfer''' and '''delete original object'''.
|| This time, check the box for both '''chamfer''' and '''delete original object'''.
|-
|| Cursor on '''fillet''' and '''chamfer'''.
|| Notice that '''Chamfer''' is more smooth and rounded around the corner than '''fillet'''.
|-
|| Select the lines of the fourth corner of the rectangle.
|| Often we have to make angular measurements in the drawing.
|-
|| Click on '''dimension'''.
|| Click on '''dimension'''.
|-
|| Press '''Shift+Alt'''
|| Hold down '''Shift''' and '''Alt''' keys.


Notice the parameter changes in '''combo view'''.
|-
|| Holding the keys down, select the two lines.
|| Holding the keys down, select the two lines where the angle is to be measured. 
|-
|| Move the cursor between and outside the selected lines.


Show the arc flips - highlight in video.
|| We can measure the inside or outside dimension.


Move the cursor on the canvas between and outside the selected lines. 


Notice the arc denoting the measurement also flips.
|-
|| Left click once to measure the angle.


Release the '''SHIFT+ALT''' keys.
|| Left click once to measure the angle.


Only now, release the '''SHIFT '''and '''ALT''' keys.
|-
|| 
|| Next, let’s learn to create a '''leader line'''.


'''Leader line''' aid to move annotation to a more suitable position in the canvas.
|-
|| Click on the '''Label tool'''.


Choose a corner and left click.
|| Choose the '''Label tool'''.


Choose a corner on the '''rectangle''' and left click.


Notice the blue pointer when the cursor is close to the corner.
|-
|| Drag the line to a side. 


Click once and drag again to the side as seen.
|| Draw a line to a side.

Then drag the line to a side. 


Click once and drag again to the side as seen.
|-
|| Left click to accept the addition.
|| Left click to accept the '''leader''' '''line'''.
|-
|| Cursor next to '''label''' text.
|| Notice the label text showing in the canvas.


Sometimes the '''Label''' does not show on the canvas.
|-
|| First select the label line and click on the '''view''' tab.
|| If so, first select the label line and click on the '''view''' tab.


Let’s change the size of the text on the canvas.
|-
|| Scroll down in the '''View''' tab and to '''text properties'''.


Increase the text size.
|| Scroll down in the '''View''' tab and to '''text properties'''.


Increase the text size to a higher value, to show the label.
|-
|| 
|| This value may be different for each of you.
|-
|| In '''Combo view''', go to '''Data''' tab.
|| In '''Combo view''', go to the '''Data''' tab.
|-
|| Click on the '''Custom text''' form in the '''Label''' section.


Click on the '''Ellipsis symbol''' seen on the right side.
|| Cick on the '''Custom text''' form in the '''Label''' section.


Click on the '''Ellipsis '''seen on the right side.
|-
|| In the '''List''' box, type, will type “'''Radius 10'''”. 


Click on '''Ok'''.
|| A '''List''' dialog box opens.


I will type “'''R 10'''” and click on '''OK'''.


Some of you may not see the label update.
|-
|| Cursor on Label value, which is not updated.


Click on the custom text form and then on the canvas.
|| Though the form value is updated, symbol does not appear on the canvas.


First click on the custom text form and then on the canvas to see the update.

|-
|| 
|| As needed save your work and exit '''FreeCAD'''.
|-
|| '''Slide Number 9'''

'''Summary'''

|| Now let's summarize. 


In this tutorial, we learned about

* Continue option when drawing line 
* Split a line
* Use of snap tools when creating intersections in lines
* '''Fillet''' and''' Chamfer'''
* Measured '''angular''' dimension and
* Created leader line to add label


|-
|| '''Slide Number 11'''

'''Assignment'''

[[Image:image1.jpg.png|top]]
|| For assignment activity, please do the following.

Create a drawing as seen here.

|-

|| '''Slide Number 11'''

'''Spoken Tutorial Project'''



|| This video summarises the '''Spoken Tutorial''' Project .


Please download and watch it.
|-
|| '''Slide Number 12'''

'''Spoken Tutorial workshops'''



|| The '''Spoken Tutorial Project '''team,


<nowiki>* conducts workshops and</nowiki>* <div style="margin-left:0cm;margin-right:0cm;"><nowiki>* gives certificates.</nowiki>




Please write to us.
|-
|| '''Slide Number 13'''

'''Forum for specific questions:'''
|| Please post your timed queries in this forum.
|-
|| '''Slide Number 14'''

'''Acknowledgement'''
|| '''Spoken Tutorial''' Project was established by Ministry of Education''' Government of India'''.
|-
|| 
|| Thank you for joining.
|-
|}