Tangent constraint puts parts in inverse alignment

[Vagulus]

I have a cam plate with two tracks on it

At the end of a cross-shaft a bearing (red arrow) is to ride between the faces of the cam track walls (green arrows)

That's the theory, anyway .  Using a Tangent Constraint I constrain the outer face of the bearing

to one cam track wall

and the bearing immediately jumps to the wrong side of the cam face wall.  FTR: the bearing follows the track perfectly except that it is outside the track instead of inside it .

How do I get the follower bearing to stay in the right place (between the cam track walls)?

[Vagulus]

Relax, folks.  I got it.  The buttons for internal or external tangent are the wrong way round.  I did it all again clicking the wrong button and it worked perfectly.  Has Microsoft bought Autodesk?

[SBix26]

Can you post your parts?  It sounds as if you have backward surface normals or something.  The buttons are not the wrong way around in my experience.

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Sam B
Inventor Pro 2019.1.1 | Windows 7 SP1
LinkedIn

[Vagulus]

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@SBix26 wrote:

Can you post your parts?

Herewith

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[martin.jacko]

Hi,

I took a look at your problem.

It seems there is something wrong with derived component.

Do you remember how do you create derived component?

In inventor 2019 I tried to create another one from AE-001-0003.ipt, but tangent constraint works fine.

Thanks,

Martin

[Vagulus]

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@martin.jacko wrote:

Do you remember how do you create derived component?

New --> Std. (mm) ipt --> Create -->  Manage --> Derive --> select part to derive from --> OK

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[Vagulus]

Here's something else which is the wrong way round.

Here I have a vertical line, but the icon shows that it is constrained horizontal.

Now, I know that Australia is 'Down Under' but I didn't know that that means the software has to work back to front. 

[martin.jacko]

It looks like problem of inventor 2018 derived component.

Could you please try to derive and use tangent constraint on inventor 2019 (trial)?

Martin

[Vagulus]

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Hi Martin

Thanks for your interest.

@Anonymous wrote:

It looks like problem of inventor 2018 derived component.

I had the same issued with 2010 and 2015.

@Anonymous wrote:

Could you please try to derive and use tangent constraint on inventor 2019 (trial)?

I have 2018 working okay and I can live with the issues now I have identified them.  Changing versions of AI sounds like an invitation to heartache getting it up and running.  I will let sleeping dogs lie.

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