Compound Angles

[brett.daughtrey]

Please help.  I am struggling to correctly make a part with compound angles.

In the attached drawing the dimensions are what I want but I have had to edit them to be correct.

I can make a plane for the first angle, but am then not able to rotate that plane (or revolve a sketch on that plane) around an axis that does not lie on that plane?

[JDMather · Accepted solution]

Check this one.

[brett.daughtrey]

Thankyou very much for this.

I've managed to reproduce it, allthough it will  take some time for me to digest your solution properly.

[JDMather]

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@brett.daughtrey wrote:

..... take some time for me to digest your solution properly.

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All I did was sketch the angles on the four faces of the part (since one face was inclined - I created sketch on opposite face and then used Split to project to the inclined plane).  Basic geometry.  Then knowing that any 3 points define a plane I created the planes.  I assume that there is a good chance that all 4 angles didn't need to be defined to create the planes - but this showed the results were same as original pic you provided.

Alternatively I could have used Lofts to cut rather than create the workplanes and Splits.

[JDMather]

Just went back and looked again and realized that the solution might look complicated on first look, but it is really very simple.

First I oriented the model according to the leftmost view in your post.
Created that sketch line at angle and then rotated to the next side and continued.
The only confusing part is that because one face on your part was inclined - I put both lines in one sketch on one side and then used Slice to project to inclined plane.

[brett.daughtrey]

I can see now that it is quite simple.

Basicaly drawing the angles on the faces & cutting away.

I am quite new to Inventor & have never used the split command before .

Thanks again for your speedy responce.  It may have been simple but I was still in a hole.