NX7.5 - Calculating face radius value 3

[CAD2015]

Hi,
I need to calculate the radius of the yellow faces from the attached bracket.
I have different options but it gave me different values.
Which method is the most accurate one?
What value have you got measuring these faces?

Thanks


MZ7DYJ

 

[lbd7700]

Hi, good news and bad news. The large face radius is 28mm, i used the standard radius modeling dimension, face information and the resize face command. all of them with the same radius, no decmials.

the smaller face i couldnt get any radius from the previous commands.

hope this helps. good luck

lbd

 

[cowski]

The large face is cylindrical with a radius of 28 mm (as already reported), I found this by using Info -> object. The 'blend' face is a B-surface which can (and does) change curvature over the face. It ranges from about 29 mm radius (near the cylindrical bottom face) to almost flat (very large radius of curvature) near the planar face.

Probably the 2 best tools to measure it are:
Analysis -> shape -> radius
or
Analysis -> Geometric properties (using a dynamic analysis you can drag your cursor over the face to see how the values change).

www.nxjournaling.com

 

[CAD2015]

Thanks Cowski!

MZ7DYJ

 

[SvenBom]

First, I have done the simple test with synctech command, Delete Face.
[ul]
[li]First, I have measured all for corners of the original face with Local Radius (Analysis menu).[/li]
[li]Then, I have removed this face with Delete Face command.[/li]
[li]Now, I have created new Edge Blend with Radius=3,5mm[/li]
[li]And that was almost the exact same surface/blend, as the original one. The difference of the radius for all four corners was approx. 0,005mm. I belive, that this is close enough.[/li]
[/ul]
And here are my results from other tests:
[ul]
[li]large face, as it was already posted, has radius 28mm. It can be calculated with Analysis->Measure Distance->Change filter to Dsitance[/li]
[li]Smaller face: I just drawn an insert/curve/arc over all four edges on both sides. When selecting start/end point, I just moved the mid-point over the edge and see, what the Radius is. If you set the view to isometric, here are the results:
left side radius varies from 3,53mm on the bottom to 3,84mm on the top. The biggest radii is at the top.
right side radius varies from 3,51mm on the bottom to 3,69mm on the top. The biggest radii is at the top.
lower edge radius varies from 29,47mm on the left side to 29,45mm on the right side. The biggest radii was around 29,49.
upper edge radius varies from 32,96mm on the left side to 32,95mm on the right side. The biggest radii was around 32,96.[/li]
[/ul]
Now, here are some other measurements:
Analysis->Minimum Radius...3,499mm
Analysis->Local Radius...click on the surface or points or edges and you will get the radii values
Analysis->Shape->Radius...you will get a color-scale for the whole surface