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In the challenge or the practice activity we agreed that we are going to create a complex shape like

2
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this and rotate rotated in a certain way.

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You know one is rotating the other direction one is rotating the opposite direction of the other fine.

4
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So how will we create that.

5
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Let's not just shootings.

6
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First of all we notice that we have the gears here or the protrusion we have 12 of them and at the start

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we have five corners on three or five spikes and we have a certain dimension he has certain thickness

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for the good fun that's all I can notice here.

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The most important for me is the 12 and how that cutoff.

10
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You notice how they are cut off pretty heavily here.

11
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Fine.

12
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So we have a new composition here which is completely empty.

13
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Let's start by adding For example our start to click anywhere or in the middle and open so I'm getting

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a very funny side.

15
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That's pretty good.

16
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That's not important.

17
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First of all what you want is to come over to the point and make them 12.

18
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That's one.

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Then I want the inner radius to be bigger than this.

20
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Fine so you know this now if I can over here what will happen.

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So you want to know exactly how much of the spikes you are making bigger then the outer radius.

22
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Let's make them a bit bigger.

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OK that will work.

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We don't mind if it comes out of the composition because we are going to trim it of course.

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So let's go to the transform here and put the position at 0 and another zero here.

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So it's quite in the middle.

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Fine.

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This is done.

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What do I have.

30
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I have a content inside it there is a polystyrene so I will come to the police side inside the police

31
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start here and I add in elipse that's it.

32
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So I have my lips here which I cannot see at all.

33
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So let's see if we move it make it bigger and bigger.

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Oh that's OK.

35
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It's fine.

36
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And we want to get it somewhere.

37
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But I can see how fine.

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So while I do I will select stroke and add a most part.

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So this most pass comes above the stroke.

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Now this while we want maybe to use substract is not working let's use intersect while intersect is

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working.

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You really want to try you really want to understand how these things are working.

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You don't have to have the solution.

44
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You want to understand how to do it now very fast.

45
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Now also I need to carry it over here.

46
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If you remember so it seems to me that the spikes are not very.

47
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They need to be bigger.

48
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So I will increase the outer radius is not working so I will increase the radius.

49
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Yes that is working fine.

50
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That's OK I think.

51
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OK.

52
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Now we had our star we have our most path and we want to add another piece.

53
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I will add another elipse that will be the trimming elipse now not is that it's game above the past.

54
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That's not good for me I'm going to put it under.

55
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I can see my lips and see it make it bigger.

56
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Let's stop it over here.

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OK that looks good.

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And then what I need is another most bath I will come to stroke to put the most part above the stroke

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just under the lips too.

60
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And here we are we add another path.

61
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It's not happening.

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Put it under.

63
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Could I guess this one will leave it to.

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Or we can use merge to make it one single one.

65
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I would leave it to.

66
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That will be OK.

67
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Then I need to add the other lips.

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Another eclipse here I will add another eclipse.

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I will take it under the most path that my lips has 100 by 100 make it bigger.

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So I want the borders.

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It will be over here.

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I will now in numerous path and that's going to be maybe a obstruct.

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We'll see how it's going to happen.

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We opened the third pass and we say subsect or here to.

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You know this will happened that the Mersch passed to here made them all one.

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Right.

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It became one element and the substracted is substracting least three from the Halmos path and now we

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have a small problem here.

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The lips is a bit small so we're going to make it or it's big.

80
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We are going to make it bigger so we don't see this Poynting outside.

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Good.

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So everything is fine now.

83
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Now what I want to create is the inner wheels or the police style that will be a star.

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OK.

85
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And it has only five sites.

86
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So I will create it within the same shape there.

87
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Of course.

88
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I'll click on the star come in the middle click hold shift and make it bigger OK it has five sides that's

89
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OK with me.

90
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Make it touch a bit.

91
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And now it's on top here.

92
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That's not good.

93
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We are going to put it under you.

94
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So now you have two major groups here.

95
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I will come to the Pollstar.

96
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I will open the police start here and make the register in a radius bigger.

97
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That's cool fine.

98
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And actually it's very good.

99
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Now also what I want to do is to add after the pollen inside the police here.

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I want to add an ellipse.

101
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I would click on ellipse.

102
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I make sure their lips is under police stuff too.

103
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And of course on to the Mersch path.

104
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And this time I'm very sure it's going to be subcircuit.

105
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Oh cool.

106
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It happened.

107
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Then I'll go to elipse wireline and make it bigger as much as I need.

108
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That's very nice.

109
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So it's working.

110
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It's perfect.

111
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So I can name this one group one for example or out of here and this one and group two that I can do

112
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that I could have also created these groups.

113
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I moved everything inside.

114
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So the feel here I will change the feel to read or actually is the outer one that is red.

115
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So Group Two is red.

116
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So I would come to the field and change it to read something like this cool.

117
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So I have it all working now I need to animate it which is pretty simple here.

118
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If you're not very well I work differently from the other one when you can download the file you will

119
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notice that I work quite differently but still I have some good results so I need to animate so outcome

120
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to group 1 and I have the transfer and only the stroke I'm going to deleted and transform here.

121
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I have rotation out keyframe the rotation go to three seconds that's good enough.

122
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I make it one.

123
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So now the outer one is rotating the inner one is not rotating yet I will come to group two of course

124
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I will do the stroke I like it here I will go to transform group 2 and keyframe it a three second and

125
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right minus one come back to the beginning and give it the zero area.

126
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Let's turn our animation and see what's happening.

127
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Cool.

128
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That is fantastic.

129
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It stops.

130
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So what you are going to do is to come to the player press you.

131
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We have all keyframes misplaced.

132
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I will take this one and put it here.

133
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Take the first keyframes.

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Select them and copy them using Control C and go to the and we press and to go to the end and we make

135
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control V.

136
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Let's see what's happening now we go back to the beginning and our rotation.

137
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I think it's working very fine.

138
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You'll notice how the copy happened.

139
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I just looked at the previous one and tried my best to make it as it is.

140
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Now the great experience that you have here when you will download the file is that the gear challenge

141
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the way I've done it here is different from the one I have done just now.

142
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You've not just now the feel are inside the groups and not outside the group.

143
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This is because firstly I created the police and outside the poly star I created the path.

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The other one and the path what I have done here is in the group 1 I created the Pollstar and inside

145
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the police started this was said if you remember I created the that path.

146
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So it's a bit different but yet I'm having the same result and I'm sure if you did that exist size you

147
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would also have the same results with different method.

148
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This is to show you that there are similar ways to do certain things at certain complex shapes and yet

149
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we get the same results.

150
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Thanks very much for listening.

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I will see you in the next lecture or in the next section.

