View source for FreeCAD/C2/Hatch-and-Array/English-timed

'''Hatch and Array-English'''

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|| '''Time'''
|| '''Narration'''
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|| 0:00
|| Welcome to the tutorial on '''Hatch and Array. '''
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|| 0:05
|| In this tutorial, we will learn to, 
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|| 0:07
|| '''Clone '''an object 
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|| 0:09
|| About '''Hatching '''
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|| 0:11
|| Download '''hatches''' from '''cadhatch.com'''
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|| 0:17
|| About '''hatch lines '''
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|| 0:19
|| About '''arrays''' and 
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|| 0:20
|| Add various types of '''arrays'''
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|| 0:24
|| To record this tutorial, I am using '''Windows 11 '''OS and '''FreeCAD''' 0.21.1 
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|| 0:35
|| To follow this tutorial, 
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|| 0:37
|| Learners must be familiar with the '''FreeCAD''' interface. 
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|| 0:42
|| For pre-requisite tutorials, please visit this site.
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|| 0:47
|| Open''' FreeCAD. '''
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|| 0:49
|| Click on '''Create''' '''new''' to start a new drawing. 
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|| 0:54
|| Go to '''Draft''' '''workbench'''. 
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|| 0:57
|| Make sure the '''orthographic''' and top view are selected. 
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|| 01:03
|| Select the R'''ectangle''' tool and draw a rectangle on the canvas.
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|| 01:10
|| Select the rectangle and click on the '''clone''' '''tool.''' 
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|| 01:15
|| A clone will get created which is not separately visible. 
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|| 01:20
|| However we can notice a new object on the object list. 
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|| 01:25
|| Select this new object and move it as desired. 
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|| 01:30
|| This is another way to copy and move an object.
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|| 01:35
|| Next, let’s add hatches on this rectangle. 
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|| 01:39
|| Cross sections of a drawing are filled with thin parallel equally spaced lines. 
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|| 01:46
|| Thus user can differentiate between various areas with ease in a drawing 
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|| 01:52
|| Open a web browser and go to '''cadhatch'''.'''com''' website.
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|| 01:59
|| Notice several patterns that we can download freely. 
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|| 02:05
|| Scroll down and notice the parallel hatch pattern. 
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|| 02:10
|| Click on it and a new page loads with several parallel styles. 
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|| 02:16
|| I will click on the very first one to download it.
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|| 02:20
|| For some of you the '''Download''' may start automatically. 
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|| 02:26
|| If a prompt appears, save the '''hatch''' '''zip''' '''file''' to your computer. 
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|| 02:32
|| Next we have to extract the files from the zip archive. 
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|| 02:38
|| Open the file manager and select the downloaded '''zip''' file. 
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|| 02:43
|| Right click to open the menu and select extract all.
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|| 02:47
|| Click on '''extract'''. 
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|| 02:50
|| Now open the '''extracted''' file folder.
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|| 02:54
|| Notice 2 files in it. 
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|| 02:56
|| One has a .'''pat''' extension and the other is a text file with details about the '''hatch'''. 
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|| 03:05
|| Let’s open the text file,
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|| 03:08
|| Notice a 45 degree angle. 
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|| 03:12
|| Let’s close the text file. 
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|| 03:14
|| Go back to '''Freecad'''. 
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|| 03:17
|| Select the rectangle. 
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|| 03:19
|| Click on '''downgrade''' once to convert to edges. 
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|| 03:25
|| Select all the edges.
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|| 03:27
|| Click on the '''upgrade''' tool to change to '''wireframe''' 
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|| 03:32
|| Click again on '''upgrade''' to change to '''face''' '''mode'''. 
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|| 03:36
|| Select the face and change the style to wireframe. 
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|| 03:42
|| Select the face and click on the '''hatch''' '''tool'''.
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|| 03:47
|| The left panel mode changes. 
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|| 03:51
|| In the hatch option, click on the '''ellipsis''' as seen.
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|| 03:56
|| Navigate through the dialog box and select the extracted .'''pat''' file as seen. 
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|| 04:03
|| We don’t notice many hatch lines in the rectangle now. 
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|| 04:09
|| For some of you the scale may be already at 1. 
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|| 04:13
|| We can change the scale and rotation angle of the hatch as desired. 
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|| 04:19
|| Notice that more hatch lines appear in the rectangle now. 
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|| 04:25
|| Pause the video and change the spacing, line style and angle. 
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|| 04:31
|| Practice to create various hatching styles. 
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|| 04:37
|| Next, let’s learn about arrays. 
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|| 04:39
|| '''Array''' is specified number copies of an object placed in a pre-defined order. 
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|| 04:48
|| They can be placed along a line, row-wise, column wise, circular and so on.
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|| 04:56
|| I have deleted all the objects on the canvas. 
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|| 05:00
|| Let's draw a rectangle to demonstrate arrays. 
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|| 05:05
|| I will select the non-hatched rectangle. 
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|| 05:10
|| Then click on the array tool in the modification panel. 
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|| 05:15
|| Notice several types and I will choose the first option called '''array'''.
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|| 05:20
|| The left panel properties change and it is for a '''rectangular''' '''array'''. 
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|| 05:27
|| For the number of elements in x, y and z, I will enter 5 in each as seen. 
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|| 05:36
|| For the '''X''' '''interval''', I will type 10 and press the '''Enter''' key. 
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|| 05:42
|| Repeat this for y and z interval values as well.
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|| 05:48
|| Scroll to the top of the left panel and click on '''Ok''' to see the created '''array'''. 
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|| 05:55
|| Zoom out as needed to on the canvas. 
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|| 05:58
|| Learners can pause the video. 
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|| 06:02
|| Change the values in the number of elements and intervals. 
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|| 06:07
|| Familiarize with the various patterns that you can obtain through the arrays.
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|| 06:13
|| Next let’s learn about '''polar''' '''array'''. 
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|| 06:17
|| First create a circle on the canvas with 25 mm radius as seen. 
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|| 06:24
|| Then, draw a line to represent the radius. 
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|| 06:29
|| It is from the center to the circumference which is called endpoint.
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|| 06:35
|| Select this line and go to the array tool. 
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|| 06:39
|| This time choose the Polar array option. 
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|| 06:43
|| Again, the options in the left panel changes. 
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|| 06:47
|| Type 12 for '''Number''' '''of''' '''elements'''. 
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|| 06:50
|| Do not press the '''Enter''' key.
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|| 06:54
|| Move the cursor to the circumference of the circle to locate the center of the circle. 
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|| 07:02
|| We can see a white dot at the center as seen. 
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|| 07:07
|| Click on it and notice that the circle is equally divided into 12 sections. 
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|| 07:14
|| Next select the circle and the '''circular''' '''array''' on the canvas. 
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|| 07:20
|| Click on the '''array''' '''tool''' and select the '''circular''' '''array''' option. 
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|| 07:25
|| On the left panel several properties are seen for this array. 
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|| 07:32
|| Radial distance, tangential distance, Number of circular layers and symmetry can be changed. 
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|| 07:40
|| I will change it to 100, 50 and to 3 layers. 
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|| 07:45
|| I will keep symmetry to 1.
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|| 07:48
|| Click on '''OK'''. 
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|| 07:51
|| To notice the new pattern, you may need to zoom out on the screen, 
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|| 07:57
|| Learners can pause the video. 
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|| 08:00
|| Change these values and familiarize yourself with the various patterns you can create.
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|| 08:07
|| Next we will create a '''path''' '''array'''. 
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|| 08:10
|| I will select 2 objects from the canvas. 
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|| 08:15
|| Let's draw a rectangle. 
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|| 08:19
|| Hold down the '''control''' '''key''' when selecting more than one object. 
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|| 08:25
|| First I will select the circle and then the non-hatched rectangle.
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|| 08:31
|| Then, go to the '''array''' '''tool''' and choose the '''path''' '''array'''. 
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|| 08:36
|| I will leave the default options as is. 
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|| 08:41
|| Notice that the circle which was selected first moved towards the rectangle. 
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|| 08:47
|| Scroll down the '''property''' '''tab''' in the left panel to '''counts'''. 
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|| 08:54
|| Change '''counts''' to 10.
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|| 08:57
|| Notice the difference on the screen.
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|| 09:00
|| If desired save your work and exit '''FreeCAD'''. 
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|| 09:05
|| Now let's summarize. 
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|| 09:07
|| In this tutorial, we learnt about 
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|| 09:10
|| Cloning an object 
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|| 09:12
|| Hatching 
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|| 09:13
|| Downloaded hatches from '''cadhatch.com '''
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|| 09:18
|| About hatch lines 
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|| 09:21
|| About '''arrays '''
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|| 09:22
|| Added various types of '''arrays'''
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|| 09:27
|| For assignment activity, please do the following. 
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|| 09:29
|| Create hatches as seen here.
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|| 09:34
|| Create an array as seen here. 
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|| 09:37
|| This video summarizes the '''Spoken''' '''Tutorial''' Project . 
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|| 09:42
|| Please download and watch it.
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|| 09:45
|| The '''Spoken''' '''Tutorial''' '''Project''' team, 
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|| 09:48
|| conducts workshops 
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|| 09:49
|| And gives certificates. 
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|| 09:51
|| Please write to us.
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|| 09:53
|| Please post your timed queries in this forum. 
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|| 09:57
|| The '''Spoken''' '''Tutorial''' Project was established by the Ministry of Education Government of India. 
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|| 10:05
|| Thank you for joining. 
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