I am having trouble extruding a curve. The extrusion ends up appearing straight on the curve, but you can see that the program thinks the curve should be part of the solid.

Hi Charlie,

That's just a display artifact. The geometry itself is fine. If you change Options > View > Mesh Angle from 10 to something like 1 you'll see an instant improvement.

But leaving it at 1 might slow down navigation depending on your graphics card.

- Peer

Hi Charlie, also some more info here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=10580.2

- Michael

I was initially thinking it was a display issue, but guess I was being thrown off by the STL export also being incorrect.

Same problem, same answer...

Visualisation with 10 param gives you problem.
Export with angle at 12 gives problem.

You have to choose a smaller angle and/or divide faces to fix the problem.

With very small objects, I use angle at 3
Divide larger at 1 on all type of faces
and avoid smaller than 0.3

For your object, you can adapt those params with at least a small angle and a divide at 20 or 25

Have fun

F.R.

Hi Charlie, yes the STL export will have the same issue initially because it is also generating polygons, but you can solve it by adjusting some of the options.

The 2 main things to modify is drag the slider towards the "More polygons" side, and put in a distance value in the "Divide larger than" option which will divide any polygons larger than that.

For the "Divide larger than" start with value around 1/10 of the overall width of your object like in your case here try "Divide larger than" = 10.

That will make a result like this where there is enough refinement to get that slightly curved area to come through:



- Michael