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


'''Modifications-and-Dimensioning- English'''


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|| '''Time'''
|| '''Narration'''
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|| 0:00
|| Welcome to the tutorial on '''Modifications and Dimensioning'''. 
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|| 0:06
|| In this tutorial, we will learn to, 
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|| 0:09
|| Create multiple lines 
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|| 0:12
|| Split a line 
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|| 0:14
|| Use '''snap tools '''when adding intersections of lines 
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|| 0:19
|| Add '''fillet '''and add '''chamfer''' 
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|| 0:23
|| Measure an angular dimension 
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|| 0:27
|| Add a '''leader line '''
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|| 0:30
|| To record this tutorial, I am using '''Windows '''11''' OS''' and '''FreeCAD '''version 0.21.1.
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|| 0:42
|| To follow this tutorial, 
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|| 0:43
|| Learners must be familiar with the '''FreeCAD''' interface. 
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|| 0:48
|| For pre-requisite tutorials, please visit this site. 
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|| 0:53
|| Open '''FreeCAD.'''
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|| 0:56
|| Click on '''Create New '''to start a new file. 
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|| 01:00
|| Go to '''Draft''' workbench. 
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|| 01:03
|| Make sure the '''orthographic''' and '''top view''' are selected. 
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|| 01:08
|| Then select the '''line tool'''. 
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|| 01:11
|| Notice the changes in the '''Combo view '''panel. 
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|| 01:15
|| Check the box for the '''Continue '''option. 
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|| 01:19
|| We can draw multiple discontinuous lines or continuous lines now. 
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|| 01:26
|| We don’t have to select the line tool each time to draw a different line. 
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|| 01:32
|| To demonstrate I will add a few lines.
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|| 01:36
|| Several line objects are added on the '''combo view''' as we add more lines. 
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|| 01:45
|| To exit this mode, press the '''escape key'''. 
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|| 01:49
|| Next, select one of the lines and select the '''split tool'''. 
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|| 01:56
|| Place the cursor on the line and left click to '''split''' the line at that point. 
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|| 02:03
|| Notice the 2 line objects in the '''combo view''' panel. 
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|| 02:09
|| Next, let’s learn about snap tools in line drawings. 
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|| 02:15
|| I will click on 8 of the '''snap tools''' as seen. 
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|| 02:19
|| It is useful to keep them on as you progress in your drawing skills. 
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|| 02:25
|| Next, let’s create a drawing to learn the options present in snap tools. 
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|| 02:32
|| Choose the '''line tool''' and check the box for '''continue'''. 
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|| 02:36
|| Let’s draw one horizontal line. 
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|| 02:41
|| Check the '''snap end point tool''' and draw two lines. 
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|| 02:46
|| For this feature to be visible, the '''snap ortho tool''' is in the '''on''' mode. 
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|| 02:54
|| Then we know that the line is horizontal. 
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|| 02:59
|| Move the cursor to draw a line. 
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|| 03:03
|| Notice the blue color + symbol, with the + symbol of the cursor. 
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|| 03:10
|| The blue + symbol appears only when the line is horizontal or vertical. 
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|| 03:17
|| Move the cursor close to the end of the line. 
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|| 03:21
|| Notice a White dot on the line and a blue guide. 
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|| 03:26
|| Since the '''Continue''' option is on, we can continue to draw line. 
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|| 03:31
|| Let’s add labels on the line. 
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|| 03:35
|| Notice the '''snap end-point''' is on in the '''snap tools'''. 
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|| 03:41
|| Click on the '''text tool'''. 
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|| 03:44
|| Move the cursor near the point to where the annotation is desired. 
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|| 03:50
|| Notice the White dot and left click. 
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|| 03:54
|| A dialog box to type custom text appears on the left. 
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|| 04:00
|| I will type '''A '''in this. 
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|| 04:04
|| If you don’t see the label sign, go to the '''data''' tab and increase the font size. 
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|| 04:13
|| Now pause the video. 
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|| 04:15
|| Repeat this procedure to label the other end of the line with '''C'''. 
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|| 04:22
|| Notice that the '''snap mid-point '''is '''on'''. 
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|| 04:27
|| We can also label the mid-point of the line in the same way. 
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|| 04:33
|| Pause video and label the mid-point as '''B'''. 
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|| 04:39
|| Click on the '''line tool''' again and make sure the '''snap perpendicular''' is on. 
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|| 04:46
|| Place the cursor on the canvas and move it towards the line. 
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|| 04:52
|| When we see the blue ‘+’ sign, we know that the new line will be perpendicular. 
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|| 04:59
|| Pause the video, and create a label called '''D''', at this new line intersection. 
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|| 05:08
|| Next let’s learn about '''snap intersection'''. 
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|| 05:13
|| For this, we first have to turn off all other snap tools. 
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|| 05:19
|| Move the cursor to near the intersection of the two lines. 
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|| 05:25
|| The blue cross shows the intersection between the two lines. 
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|| 05:30
|| Let’s create another line from the intersection point. 
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|| 05:36
|| Left click and move the cursor. 
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|| 05:39
|| Notice that line properties change in the left panel. 
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|| 05:45
|| Type the angle to be 45 degrees and press the '''Enter''' key. 
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|| 05:51
|| Notice the intersecting line at 45 degrees. 
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|| 05:56
|| Pause the video and create two more labels of the remaining ends of the line. 
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|| 06:05
|| I will label them '''E''' and '''F.''' 
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|| 06:08
|| Let’s draw a rectangle next. 
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|| 06:12
|| Edges and faces are often rounded off in '''engineering''' drawing. 
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|| 06:18
|| This practice aid to reduce stress points and are called '''fillet''' or '''chamfer'''. 
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|| 06:26
|| Rectangle is a closed loop single entity. 
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|| 06:30
|| Hence, first downgrade the object to individual lines before '''fillet''' is applied. 
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|| 06:38
|| Next, select two neighboring edges or lines. 
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|| 06:43
|| Click on '''fillet.''' 
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|| 06:44
|| Change the '''fillet''' value to 10 mm and press the '''Enter key'''. 
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|| 06:50
|| Notice the sharp edge is now smoothened over. 
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|| 06:55
|| Notice that both the original object and the '''fillet''' are present now. 
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|| 07:01
|| Again, select two adjacent lines, and click on '''fillet'''. 
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|| 07:06
|| Next, check the box for '''delete the original object'''. 
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|| 07:12
|| Enter 12 for '''fillet''' and notice that only '''filet''' remains. 
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|| 07:19
|| Next, pick another set of adjacent lines in the rectangle. 
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|| 07:24
|| Then choose the '''fillet''' tool. 
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|| 07:28
|| This time, check the box for both '''chamfer''' and '''delete original object'''. 
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|| 07:34
|| Notice that '''Chamfer''' is more smooth and rounded around the corner than '''fillet'''. 
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|| 07:42
|| Often we have to make angular measurements in the drawing. 
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|| 07:47
|| Click on '''dimension'''. 
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|| 07:50
|| Hold down '''Shift''' and '''Alt''' keys. 
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|| 07:55
|| Notice the parameter changes in '''combo view'''. 
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|| 08:00
|| Holding the keys down, select the two lines where the angle is to be measured. 
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|| 08:07
|| We can measure the inside or outside dimension. 
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|| 08:13
|| Move the cursor on the canvas between and outside the selected lines. 
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|| 08:19
|| Notice the arc denoting the measurement also flips. 
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|| 08:25
|| Left click once to measure the angle. 
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|| 08:30
|| Only now, release the '''SHIFT '''and '''ALT''' keys. 
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|| 08:35
|| Next, let’s learn to create a '''leader line'''. 
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|| 08:39
|| '''Leader line''' aid to move annotation to a more suitable position in the canvas. 
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|| 08:47
|| Choose the '''Label tool'''. 
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|| 08:50
|| Choose a corner on the '''rectangle''' and left click. 
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|| 08:55
|| Notice the blue pointer when the cursor is close to the corner. 
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|| 09:01
|| Draw a line to a side. 
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|| 09:04
|| Then drag the line to a side. 
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|| 09:09
|| Click once and drag again to the side as seen. 
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|| 09:14
|| Left click to accept the '''leader''' '''line'''. 
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|| 09:18
|| Notice the label text showing in the canvas. 
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|| 09:22
|| Sometimes the '''Label''' does not show on the canvas. 
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|| 09:27
|| If so, first select the label line and click on the '''view''' tab. 
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|| 09:34
|| Let’s change the size of the text on the canvas. 
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|| 09:39
|| Scroll down in the '''View''' tab and to '''text properties'''. 
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|| 09:44
|| Increase the text size to a higher value, to show the label. 
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|| 09:51
|| This value may be different for each of you. 
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|| 09:56
|| In '''Combo view''', go to the '''Data''' tab. 
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|| 10:00
|| Click on the '''Custom text''' form in the '''Label''' section. 
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|| 10:05
|| Click on the '''Ellipsis '''seen on the right side. 
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|| 10:09
|| A '''List''' dialog box opens. 
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|| 10:13
|| I will type “'''R 10'''” and click on '''OK'''. 
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|| 10:16
|| Some of you may not see the label update. 
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|| 10:21
|| Though the form value is updated, symbol does not appear on the canvas. 
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|| 10:29
|| First click on the custom text form and then on the canvas to see the update. 
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|| 10:36
|| As needed save your work and exit '''FreeCAD'''. 
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|| 10:41
|| Now let's summarize. 
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|| 10:43
|| In this tutorial, we learned about 
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|| 10:46
|| Continue option when drawing line 
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|| 10:50
|| Split a line 
|-
|| 10:52
|| Use of snap tools when creating intersections in lines 
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|| 10:58
|| '''Fillet''' and '''Chamfer''' 
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|| 11:01
|| Measured '''angular''' dimension and 
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|| 11:05
|| Created leader line to add label 
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|| 11:09
|| For assignment activity, please do the following. 
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|| 11:13
|| Create a drawing as seen here. 
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|| 11:17
|| This video summarises the '''Spoken Tutorial''' Project . 
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|| 11:22
|| Please download and watch it. 
|-
|| 11:25
|| The '''Spoken Tutorial Project '''team, 
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|| 11:28
|| conducts workshops and
|-
|| 11:29
|| gives certificates. 
|-
|| 11:32
|| Please write to us. Please post your timed queries in this forum. 
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|| 11:38
|| '''Spoken Tutorial''' Project was established by Ministry of Education '''Government of India'''. 
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|| 11:46
|| Thank you for joining. 
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