Cone Angle

[[Ca...]]

I'm having trouble with a cone angle, and it's making me feel like an idiot. My part is a dinner plate with a OD groove. The tops and bottoms of the groove have a 0-5 degree callout. I'm sure I'm completely missing something, but I can only display the cone as 175 degree, or half that. How can I display the complementary angle of the cone?

See my 10 second picture for a visual.

Capture.JPG

[[Me...]]

I may be mistaken but you may have to use this formula for the cone angle...

0.5 * ( pi - getActual("Cone ID").apexAngle )

[[De...]]

I usually create a masked characteristic which has the cone angle or half cone angle.

Then I create a result element for this which uses either 360 or 180 minus the result of the characteristic as the answer depending on the answer i'm going for.

Curious to see what others use to do this.

[[Me...]]

I do the same thing as Derek. Also interested to know if anyone else does it differently.

[[Ca...]]

I started down the Result Element path, but got pulled off to something else. I don't use result elements much, they seem a lot like algebraic equations. Is it that simple?

[[De...]]

For a result element it usually is pretty much that simple.

One thing to watch out for is some things seem to get converted between imperial and metric automatically and some things do not.

Also most angles are dealt with using radians so there may or may not be a need to convert to or from radians in some cases.

But in general, you create a formula, and Calypso solves the formula at run time.

[[Me...]]

Once I found out that I didn't actually have to type out "getActual"Characteristic.x", and I could just click the drop down menus to get what I wanted, it becomes very easy. I now sometimes go out of my way to use it, because it makes me feel smart 👩‍🏫

[[Ca...]]

Here's what I ended up with:
(90/57.29578)- (getActual("My Feature").actual/57.29578)*57.29578

It seems to work, but feel free to tell me if I'm an idiot, or if I've done it "the hard way".

[[To...]]

(90-getActual(blah, blah blah))*pi/180

or

rad(90-getActual(blah, blah blah))

[[Ja...]]

It seems when you first open your result element you can change it from length to angle before going into the formula and then it will give you degrees instead of radians.

[[Ca...]]

Tom, both of those suggestions yield a "message not understood" pop up.

Jason, I'd seen that, and I'm working in Angle.

[[Ri...]]

Result Element and Formula are probably your best and easiest approach here.

[[Da...]]

Can i please for explanation how this calculation should be done to work ?
i tried many times to measure angle between plane and surface of cone, so i need to:
180 - cone angle + half cone angle, or something like that ... but i do not understand when i have to divide or multiply by pi or something
its in decimal degrees, with high tolerance
and i always fail and do the line 🙂

[[Gr...]]

To get the cone angle in degrees, I use the formula:

(0.5*(pi- getActual("CONE NAME").apexAngle))

To get the angle relative to the surface, you'll probable need to toss that formula inside a "90-(ABOVE_FORMULA)", assuming it's perpendicular. If it's not (or you want to get more accurate), add a characteristic measuring the cone to plane angle, then replace the 90 deg with that result.

[[To...]]

90-deg(getActual("CONE NAME").apexAngleHalf)

[[Da...]]

thank you

90-deg(getActual("Conename").apexAngleHalf) on cone with angle 9.5642 is giving me results -> 4882,6263 and i do not know what it means, meybe its older Calypso ? (2017)

but think i understand now a little at least 🙂 version with pi
i can make:
pi-(getActual("Conename).apexAngle) and in this case if my cone has 10 degrees result of calculation will be 170
so the pi is not 3,14... but we can treat pi = 180 (degrees) at least it works like its 180
i can also do (getActual("conename").apexAngle)/4 (for example) and it works and its good

[[To...]]

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Hi Damien, it depends which "Dimension" setting you're using in the Result Element window. If you select Length as the Dimension type, then the formula works. If you selected Angle, then the following will work.
rad(90-getActual("ConeName").apexAngleHalf)

[[Er...]]

I use a theoretical feature copied from the original.
I put this in the theoretical "cone angle"

rad(90) - getActual("ConeName").apexAngleHalf

I do the feature calculation because engineers ask silly questions about result elements.