Surface is not aligned to the curve

[Hrcko]

Hi!

 

I created the surface using the lines on the edges of the body. The surface is not completely attached to the lines. There is a gap between the line and the surface. What can be the reason for this?

 

 

[SEANT]

That may be a render mesh tessellation issue. What are your Viewres and Facetres settings?

[Hrcko]

Here is the DWG file of the part. Can it help you to find the problem?

 

Krmeno uzvojno koljeno.dwg

 

FACETRES = 0.5

VIEWRES = 1000

Edited August 23, 2014 by Hrcko

[JD Mather]

First thing I noticed is that facetres was set to 0.5 I always use 10 for 3D modeling.

Second thing I noticed is the generating geometry appeared to be of poor quality.

http://www.cadtutor.net/forum/showthread.php?88270-Smooth-3D-polylines&p=605544#post605544

 

 

For example, a line usually has a beginning and end point. That is it - nothing more.

[Hrcko]

JD Mather, thank you for your time.

 

I will make new geometry based on the existing one, with reduced number of control points. Than I will see what to do next.

[SEANT]

I examined the file and now think the issue is related to the problem discussed in this thread:

http://www.cadtutor.net/forum/showthread.php?69708-3D-Round-Objects-showing-multiple-flat-faces

 

 

The faceting/tessellation issue does not respond to Viewres/Facetres modifications. The geometry in the file has to be reset to more appropriate scale. See if the attached performs any better.

Krmeno uzvojno koljeno_scaled.dwg

[Hrcko]

Thank you Seant, now is much better. What I am drawing is ship model part in the scale 1 : 20. Really small part.

[Hrcko]

I have made new geometry but did not solve the problem. Isolines seems to be OK, but coloured surface is not on the right place.

 

 

Thank you for thr help.

Krmeno uzvojno koljeno.dwg

[eraserhead214]

When I scaled the entire model 100 times (Using SCALE command), the surface became smooth and aligned with the guidelines. I think it is an issue with the model being very small. Correct me if I am wrong.

[Hrcko]

Yes, the scale has influence on the picture quality. I scaled the model 20 times and got nice picture.

If I zoom marked area in sufficient extent I will see some irregularities in the picture.

After all, I am satisfied with the result and will use models in bigger scale.

 

I thank to all forum members who spent their time to help me. I appreciate your good will and generosity.