find an angle from given height and length

[maroto77]

Hello,
(disclaimer I'm not a math person), but

I'm working in some parametric design in the sheet metal environment.

my problem: I need to calculate the angle "ang1, ang2" so that i can create a flanges that matches the angle of existing "walls".

I know that we need the inverse of tan -1()

play with this but not there!

ang1 = tan((d-c)/b)

any help would be welcome. Thanks in advance.

[MRWakefield]

I think you intended to attach an image but it's not there. Can you try again? Just use the "Insert Photos" button.

EDIT: Ignore that, It's there now.

[MRWakefield · Accepted solution]

Try this:

ang1=180-atan(b/(d-c))
ang2=atan((a-b)/d)+(180-ang1)

If this answers your question please mark the thread as solved as it can help others find solutions in the future.

[maroto77]

Hello MRWakefield,
Thanks for the Math Magic (help).

It works. It works.....

[MRWakefield · Accepted solution]

It works for me so maybe there's a bracket or something in the wrong place. If you can upload your f3d file I'll take a look. I've attached an Excel spreadsheet if it helps.

[maroto77]

your formulas where Perfect.
I was doing it wrong. (figure out the problem and solved it)

thanks again for the help

[g-andresen]

Hi,

have a look

günther

[laughingcreek]

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@maroto77 wrote:

Hello,
..I'm working in some parametric design in the sheet metal environment.

my problem: I need to calculate the angle "ang1, ang2" so that i can create a flanges that matches the angle of existing "walls"...

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There is a good chance you can skip the math and let fusion figure this for you. Can you attach your model, or a simplified model with a mock up of the problem?