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Smooth radius corner

T_F
Moonstone
Moonstone

Smooth radius corner

I need to draw a surface like this:

 

T_F_0-1578563568144.png

And i can't find a proper way of how to do it. Any help?

 

Meanwhile, I did post a Idea.

 

https://community.ptc.com/t5/Creo-Parametric-Ideas/Surface-desing-smooth-radius-corner/idc-p/643498#...

12 REPLIES 12

Re: Smooth radius corner

There is a way in the round command to do "transitions" (see the button I picked with the blue "patch"), where you can simply "intersect" the converging radii or do a spherical corner blend with 4 different dimensions to tweak the resultant "patch" surface.  You might not get exactly what you want, but you should be able to get close.

CORNER_SPHERE.jpg

Re: Smooth radius corner

With that simple geometrie it works, But with all of the surfaces that I have, the result is really awfull...

Re: Smooth radius corner

Bummer.  That's about it unless you want to hand-create a patch, and then create another patch offset on the other side of the thickness of the sheet metal.

Re: Smooth radius corner

Can you give an example of your idea?

In other softwares there is an option inside radius that creates a setback. That's very similar to the surfaces that I present. But the option available in CREO, it creates a sphere in the intersection of the corner, and then a transition, it's not equal . But in these particular condition, it doesn't work.

Re: Smooth radius corner

Not offhand, but you could try making an N-sided surface (search the forum for it, there's a couple threads).  There's config.pro settings you need to make, and the interface is Olde School and kinda difficult, but it can do amazing things.

Re: Smooth radius corner

Why ptc couldn't make the things easier. All of other CAD package, can generate this very easily.

Re: Smooth radius corner

I'm not sure they can, I haven't seen it so I can;t compare.

Re: Smooth radius corner

Annotation 2020-01-13 104752.png

Is this similar to what you want to achieve? I did this with a 45-degree extrude prior to rounding. I'm sure you could get a smoother result by using a revolve or something else to cut the geometry, or even to delete the surfaces and patch it using the n-sided patch (I can never get that one to work, though) or boundary blend or something else.

Re: Smooth radius corner

Not fantastic, the final result is not the same! But anyway, it's a workaround, that takes user a lot of time, other softwares, is only a option in round command. PTC should take a look at this!

Re: Smooth radius corner

Yes, it's probably easier in other software packages. That's often the case. If you want to speed it up a bit in Creo, if this is a thing you do a lot, you could design a Punch tool or make a UDF, with some variable dimensions, to make it easier for your users.

Re: Smooth radius corner

Like i said, not fantastic, and the result not the same.

Re: Smooth radius corner

I agree, if the geometry HAS to be specific, do it with surfaces once on a tool, and it's done forever.

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