Shell feature

[shankar_me]

Hi,

Do anybody know the effect of the size of the model on the shell thickness?
I observed the following.
When I try to create a shell with 0.5mm thickness on a box of say 400mmX400mmX600mm, I have no issues.
But if I try to shell a box with 800mmX800mmX1900mm, to get the same thickness I should have to increase the accuracy of the model.
Do anybody know how the min shell thickness varies with body dimension?

Thanks,
Shankar

 

[rmatija]

I have no problem

Try open this

best regards

<a target="_blank" href="uploads/rmatija/2012-06-20_013157_shell.zip" target="_blank">2012-06-
20_013157_shell.zip</a>

 

[tobbo]

I think i have answered this question tons of times here on mcad before, so this time i just "copy/paste" from pro/E help:

Model Accuracy

In Creo Elements/Pro, model accuracy depends on the granularity, or precision, with which the software creates the geometry. For example, model accuracy determines such characteristics as how finely the software tessellates the model's curves. A finely tessellated curve is a smoother curve, whereas a coarsely tessellated curve would give the appearance of a series of straight lines that approximate the shape of the curve. Model accuracy in assemblies can determine whether geometry is treated as merged or separate as well as how successfully you can mesh two components.
The two types of model accuracy are:

 

[tobbo]

I have no problem

Try open this

best regards

<A href="uploads/rmatija/2012-06-20_013157_shell.zip" target="_blank">2012-06-
20_013157_shell.zip</A>

That.s because you have set the accuracy to be "absolute" (and to a value of 0.01) and dont use the default "Relative" with the value 0.0012


//Tobias
Edited by: tobbo