Using the tolerance advisor tool

00:09

In this exercise, we will be using the Tolerance Advisor Tool with Inventor Professional.

00:17

So once you create your first Tolerance feature with Inventor,

00:20

you'll notice the Tolerance Advisor is automatically going to show up in this tab here.

00:25

So underneath your part name in the browser, you'll see a list of warnings and error messages.

00:32

So general warnings will show up here.

00:34

And then if it's calling out a specific dimension that has a problem, it'll show up with a drop down folder like this.

00:43

So let's take a look at this "Diameter Dimension" here. "Diameter Dimension 1."

00:47

It says "Zero-value (or inconsistent) tolerance not allowed." If I'm not sure what that means,

00:53

I can get more information by right-clicking on the issue and going to "More information."

00:59

This will automatically open up that specific page in the Help manual and provide a resolution.

01:07

So it says, "To resolve this error, apply a tolerance to the sketch or feature dimension."

01:12

So the dimension does not have a tolerance applied to it. So it's not valid for GD&T.

01:19

So in order to fix that, I just need to go back to Inventor and apply a Tolerance to that 1.75 inch feature.

01:26

So I can click on that dimension. It highlights it in the graphics window.

01:30

I can double-click on it to open it up and then I'll double-click on the 1.750 value here.

01:37

And I'm going to change it from "Default" to "Limits-Stacked."

01:43

And I'm going to go ahead and make the upper limit a little larger. I'll go ahead and just make it 1.76.

01:51

So now there's a tolerance associated or there's a range for that diameter that it can fall within.

01:57

I can then hit the "Check Mark," it updates that value.

02:02

And now you'll notice in the Tolerance Advisor, that warning message has gone away.

02:09

Now you'll see there are two error messages remaining. The first one says "Model contains external annotation elements."

02:15

This error message shows up any time you have dimensions or notes that have been added on to the 3D model,

02:23

that are not analyzed by the Tolerance Advisor.

02:26

So these dimensions here are not controlled by the advisor.

02:31

And so you want to make sure that if you add additional dimensions, that they are basic,

02:36

or you have a note like I do that says, "Unless otherwise specified, all dimensions basic."

02:41

So I've covered my bases there. I can ignore that message.

02:45

Now, the second message I get is one or more surfaces are unconstrained.

02:50

If I'm not sure what surfaces still need to be managed with a Tolerance,

02:56

I can use the Face Status Coloring tool which is at the bottom of the Tolerance Advisor browser.

03:02

So if I click on this to turn it on, you'll see anything that's fully constrained will show up green,

03:07

anything that's partially constrained will be yellow, unconstrained will just be gray,

03:12

and then constrained by a surface profile will be light blue.

03:17

So as you add additional tolerances, these surfaces should change color.

03:23

So if I add a profile tolerance to this internal surface here,

03:28

it should turn green. So if I go to Tolerance Feature,

03:31

and I go ahead and I select all these internal faces, so I'm going to hold "Shift" while I do this,

03:38

so that I can click those four faces.

03:42

I'll then hit the "Check Mark,"

03:44

and it adds a profile tolerance to those relative to A, C and B.

03:53

Now, if I click the "Check Mark,"

03:57

notice now with face status coloring on, it's turned those surfaces green.

04:02

So they are fully constrained because I've related it to A, C and B.

04:08

Now, they'll turn light blue if you've added a general profile note.

04:12

So a specific profile note like this turns them green.

04:16

If I add a general profile note, so I'll click on "General Profile Note," I'll click in the top left corner.

04:26

If I apply something like that and I go ahead and I right-click on the profile and I edit,

04:32

I'm going to change the DRF to ACB, Click "OK."

04:37

And then click "OK" again,

04:39

you'll notice that every other surface now is light blue because it's been picked up by a general profile tolerance,

04:44

whereas the specific profile tolerance will activate a green coloring.

04:50

And now all surfaces have some type of tolerance on them.

04:53

So that error message in the Tolerance Advisor has now gone away.

04:58

And this drawing is mostly complete.

05:02

I can then go fine tune it with additional notes and call outs.

05:05

But for now, I'm happy with the results.

Video transcript

00:09

In this exercise, we will be using the Tolerance Advisor Tool with Inventor Professional.

00:17

So once you create your first Tolerance feature with Inventor,

00:20

you'll notice the Tolerance Advisor is automatically going to show up in this tab here.

00:25

So underneath your part name in the browser, you'll see a list of warnings and error messages.

00:32

So general warnings will show up here.

00:34

And then if it's calling out a specific dimension that has a problem, it'll show up with a drop down folder like this.

00:43

So let's take a look at this "Diameter Dimension" here. "Diameter Dimension 1."

00:47

It says "Zero-value (or inconsistent) tolerance not allowed." If I'm not sure what that means,

00:53

I can get more information by right-clicking on the issue and going to "More information."

00:59

This will automatically open up that specific page in the Help manual and provide a resolution.

01:07

So it says, "To resolve this error, apply a tolerance to the sketch or feature dimension."

01:12

So the dimension does not have a tolerance applied to it. So it's not valid for GD&T.

01:19

So in order to fix that, I just need to go back to Inventor and apply a Tolerance to that 1.75 inch feature.

01:26

So I can click on that dimension. It highlights it in the graphics window.

01:30

I can double-click on it to open it up and then I'll double-click on the 1.750 value here.

01:37

And I'm going to change it from "Default" to "Limits-Stacked."

01:43

And I'm going to go ahead and make the upper limit a little larger. I'll go ahead and just make it 1.76.

01:51

So now there's a tolerance associated or there's a range for that diameter that it can fall within.

01:57

I can then hit the "Check Mark," it updates that value.

02:02

And now you'll notice in the Tolerance Advisor, that warning message has gone away.

02:09

Now you'll see there are two error messages remaining. The first one says "Model contains external annotation elements."

02:15

This error message shows up any time you have dimensions or notes that have been added on to the 3D model,

02:23

that are not analyzed by the Tolerance Advisor.

02:26

So these dimensions here are not controlled by the advisor.

02:31

And so you want to make sure that if you add additional dimensions, that they are basic,

02:36

or you have a note like I do that says, "Unless otherwise specified, all dimensions basic."

02:41

So I've covered my bases there. I can ignore that message.

02:45

Now, the second message I get is one or more surfaces are unconstrained.

02:50

If I'm not sure what surfaces still need to be managed with a Tolerance,

02:56

I can use the Face Status Coloring tool which is at the bottom of the Tolerance Advisor browser.

03:02

So if I click on this to turn it on, you'll see anything that's fully constrained will show up green,

03:07

anything that's partially constrained will be yellow, unconstrained will just be gray,

03:12

and then constrained by a surface profile will be light blue.

03:17

So as you add additional tolerances, these surfaces should change color.

03:23

So if I add a profile tolerance to this internal surface here,

03:28

it should turn green. So if I go to Tolerance Feature,

03:31

and I go ahead and I select all these internal faces, so I'm going to hold "Shift" while I do this,

03:38

so that I can click those four faces.

03:42

I'll then hit the "Check Mark,"

03:44

and it adds a profile tolerance to those relative to A, C and B.

03:53

Now, if I click the "Check Mark,"

03:57

notice now with face status coloring on, it's turned those surfaces green.

04:02

So they are fully constrained because I've related it to A, C and B.

04:08

Now, they'll turn light blue if you've added a general profile note.

04:12

So a specific profile note like this turns them green.

04:16

If I add a general profile note, so I'll click on "General Profile Note," I'll click in the top left corner.

04:26

If I apply something like that and I go ahead and I right-click on the profile and I edit,

04:32

I'm going to change the DRF to ACB, Click "OK."

04:37

And then click "OK" again,

04:39

you'll notice that every other surface now is light blue because it's been picked up by a general profile tolerance,

04:44

whereas the specific profile tolerance will activate a green coloring.

04:50

And now all surfaces have some type of tolerance on them.

04:53

So that error message in the Tolerance Advisor has now gone away.

04:58

And this drawing is mostly complete.

05:02

I can then go fine tune it with additional notes and call outs.

05:05

But for now, I'm happy with the results.

Using the tolerance advisor - Exercise

  1. Open the Gear-Housing-Tolerance-Advisor.ipt part file from your working folder. 
  2. Activate the Annotate tab from the Inventor ribbon. 
  3. Right-click on the error message: "Zero-value (or inconsistent) tolerance not allowed" and select More Information.

  4. Review the error details and recommended changes. 
  5. Return to the Inventor Professional window. 
  6. Double-click on the 1.75" hole Feature Control Frame to open it up for editing. 
  7. Using the drop-down menu that says "Default" – change the value to Limits – Stacked.

  8. Double-click the top value (1.750) and change the value to 1.760.

  9. Click the green checkmark to confirm that changes. 
  10. The error message should go away. 
  11. Activate Face Status Coloring using the button at the bottom of the Tolerance Advisor browser.

  12. From the Annotate tab>Geometric Annotations panel – select Tolerance Feature
  13. Select the four inside faces of the housing (as shown) and click the green checkmark. 
  14. Click again to place the Profile tolerance feature on a plane.

  15. Click the green checkmark to add the Profile tolerance. 
  16. From the Annotate tab>General Annotations panel – select General Profile Note
  17. Click in the upper left quadrant when the screen turns blue. 
  18. Right-click on the <<$GENERAL_PROFILE_TOL>> text and select Edit Profile Tolerance.

  19. Use the drop-down menu to change the DRF to ACB. 
  20. Click OK to confirm. 
  21. Click OK to add the profile note. 
  22. Save and Close the model.
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