Transcript
00:09
In this exercise, we'll be using the inventor annotate tools to create tolerance features.
00:17
So we'll start this exercise using this gear housing part.
00:20
Once again, you'll notice a couple of dimensions and a note have already been added to this part file.
00:25
So we will be starting by going to the tolerance feature option in the top left corner of the annotate tab.
00:32
Once I select tolerance feature, it brings up this fly out menu,
00:36
and you have to select a surface before it can identify what type of feature you'd like to create.
00:42
So my first datum is going to be this flat face here.
00:46
This will be defined as datum A.
00:48
So I will select that face and then hit the check mark and now I can place my tolerance feature on a plane of my choice.
00:57
I'm gonna leave it here and go ahead and click to confirm,
01:01
and you'll notice it automatically created a flatness tolerance within 80 thousands.
01:09
And it defined that surface as Datum A, which is exactly what I'd like
01:14
if I'd like to make a change to the flatness tolerance.
01:17
For instance, I can double click and change that value or if I'm satisfied with 80 thousands,
01:23
which seems reasonable here, I will hit the check mark to confirm.
01:27
So now that datum has been added in along with the flatness tolerance.
01:31
And then the next feature I create will automatically be assumed to be datum B and then see and so on and so forth.
01:41
So to create my second datum, I can click on tolerance feature.
01:45
Once again, this time, I'm going to select this board hole right here.
01:51
I'll select that surface that cylindrical face and then hit the check mark.
01:55
And now notice it gives me the option to place another feature control frame here.
02:02
So I'll go ahead and click and then I can make changes to what this looks like.
02:06
So it gives me the diameter and it also assumes that this is going to be datum B,
02:12
and what's even better is that it even gives me a perpendicularity tolerance relative to datum A.
02:18
So it's establishing the feature control frame relating this feature back to datum A that first surface I created within 50,000.
02:28
Now, if I would like to make a change to any of this I can do so, all I need to do is double click right here and I can change that value.
02:41
So everything looks good. I'll go ahead and click the checkmark and lock in that second tolerance feature.
02:49
Okay. So now I have two DATs, I'm going to go ahead and add a third tolerance feature, which will be my datum C.
02:56
So I'll go ahead and click on tolerance feature.
02:59
Once again, I'm going to choose this lower hole segment here this through hole,
03:04
I'm gonna select that surface and hit the check mark and then left click to confirm placement on that plane.
03:12
It gives me the diameter with a tolerance.
03:14
It also gives me a positional tolerance of this hole within 80/1000 relative to A and B.
03:21
So it picks up those primary and secondary datums.
03:24
It establishes this as datum C my tertiary datum.
03:29
And now for this specific feature, I'm actually going to add in a couple of changes.
03:34
The first is for my positional tolerance.
03:41
but I do want to give bonus tolerance if the hole ends up being slightly oversized, the best way to do that is a max material condition.
03:51
So I will double click on my 80 thousands value here and I'm going to click the drop down menu here to turn on maximum material condition.
03:58
It adds the modifier to the positional tolerance block.
04:04
I'm then going to add a segment which will include perpendicularity of this whole relative to datum A and B.
04:14
So I can go ahead and click add segment.
04:19
It gives me perpendicularity to A.
04:20
I'm just gonna leave it at that perpendicularity with 50,000 to A,
04:26
so that it's very similar to datum B in the way that it's oriented to that flat surface.
04:32
So I'll go ahead and click the checkmark and now you'll notice I have the positional tolerance with the modifier,
04:38
a perpendicularity as well.
04:40
And then that is defined as Datum C.
04:42
So now I have three tolerance features to create my datum reference frame, which we can then reference with future features.
00:09
In this exercise, we'll be using the inventor annotate tools to create tolerance features.
00:17
So we'll start this exercise using this gear housing part.
00:20
Once again, you'll notice a couple of dimensions and a note have already been added to this part file.
00:25
So we will be starting by going to the tolerance feature option in the top left corner of the annotate tab.
00:32
Once I select tolerance feature, it brings up this fly out menu,
00:36
and you have to select a surface before it can identify what type of feature you'd like to create.
00:42
So my first datum is going to be this flat face here.
00:46
This will be defined as datum A.
00:48
So I will select that face and then hit the check mark and now I can place my tolerance feature on a plane of my choice.
00:57
I'm gonna leave it here and go ahead and click to confirm,
01:01
and you'll notice it automatically created a flatness tolerance within 80 thousands.
01:09
And it defined that surface as Datum A, which is exactly what I'd like
01:14
if I'd like to make a change to the flatness tolerance.
01:17
For instance, I can double click and change that value or if I'm satisfied with 80 thousands,
01:23
which seems reasonable here, I will hit the check mark to confirm.
01:27
So now that datum has been added in along with the flatness tolerance.
01:31
And then the next feature I create will automatically be assumed to be datum B and then see and so on and so forth.
01:41
So to create my second datum, I can click on tolerance feature.
01:45
Once again, this time, I'm going to select this board hole right here.
01:51
I'll select that surface that cylindrical face and then hit the check mark.
01:55
And now notice it gives me the option to place another feature control frame here.
02:02
So I'll go ahead and click and then I can make changes to what this looks like.
02:06
So it gives me the diameter and it also assumes that this is going to be datum B,
02:12
and what's even better is that it even gives me a perpendicularity tolerance relative to datum A.
02:18
So it's establishing the feature control frame relating this feature back to datum A that first surface I created within 50,000.
02:28
Now, if I would like to make a change to any of this I can do so, all I need to do is double click right here and I can change that value.
02:41
So everything looks good. I'll go ahead and click the checkmark and lock in that second tolerance feature.
02:49
Okay. So now I have two DATs, I'm going to go ahead and add a third tolerance feature, which will be my datum C.
02:56
So I'll go ahead and click on tolerance feature.
02:59
Once again, I'm going to choose this lower hole segment here this through hole,
03:04
I'm gonna select that surface and hit the check mark and then left click to confirm placement on that plane.
03:12
It gives me the diameter with a tolerance.
03:14
It also gives me a positional tolerance of this hole within 80/1000 relative to A and B.
03:21
So it picks up those primary and secondary datums.
03:24
It establishes this as datum C my tertiary datum.
03:29
And now for this specific feature, I'm actually going to add in a couple of changes.
03:34
The first is for my positional tolerance.
03:41
but I do want to give bonus tolerance if the hole ends up being slightly oversized, the best way to do that is a max material condition.
03:51
So I will double click on my 80 thousands value here and I'm going to click the drop down menu here to turn on maximum material condition.
03:58
It adds the modifier to the positional tolerance block.
04:04
I'm then going to add a segment which will include perpendicularity of this whole relative to datum A and B.
04:14
So I can go ahead and click add segment.
04:19
It gives me perpendicularity to A.
04:20
I'm just gonna leave it at that perpendicularity with 50,000 to A,
04:26
so that it's very similar to datum B in the way that it's oriented to that flat surface.
04:32
So I'll go ahead and click the checkmark and now you'll notice I have the positional tolerance with the modifier,
04:38
a perpendicularity as well.
04:40
And then that is defined as Datum C.
04:42
So now I have three tolerance features to create my datum reference frame, which we can then reference with future features.
