spiral-like object

Support Modeling
1

Hello there,
I’m having problems of modelling a spiral-like thing.
It is part of the previous thread on 3D calligraphy.
http://www.blenderartists.org/forum/showthread.php?290826-3D-calligraphy-dificulties

Had to move on with it, so now I’m modelling that “°” mark, to be somekind of a belvedere.
This is how it looks at this point.
http://www.pasteall.org/blend/21402

Here is the problematic part, namely the ceiling of the staircase:
http://www.pasteall.org/blend/21401

The problem is, that there is a line displayed in wireframe when in object mode.
Tried many things to get rid of that, but nothing seemed to work.
It is coloured to better find that part.

Any ideas?

2

you can upload poc of less then 1 MB
would be much faster to help you here !

don’t see the problem your talking ?
show a pic of it here

happy cycles

3

Thank’s for the quick reply!
Sorry I wasn’t checking the file size.
If the previous link didn’t work, here are two new added.

Here is an image of the part:

prob1.PNG1001×849 36.2 KB

https://dl.dropbox.com/s/klbunkqj8r1hkms/sss.blend
https://dl.dropbox.com/s/k27cvkskhvkokmh/ds2.blend

Also the construction of the top part of that ceiling is a bit beyond me at the moment.

4

that another object you have there inside the wall

if you don’t need it then just delete it !

salut

5

Here is the problematic part alone:

prob1II.PNG644×710 3.42 KB

6

i see go to the object panel and set show all edges!

salut

7

I can’t find such in the object menu.
Also, the problem is that it is showing as it had an an exact edge, not as a smooth surface.

8

That edge is drawing in object mode because it has moved a little bit up in Z direction . go to N panel end enable show face normals ,increase the length of the normals and you will see the problem , move the edge down and it won’t show anymore in object mode…

9

for smooth you could set smooth in tool panel on left
or if not enough add a subsurf modifier level 1 or 2

zz7.JPG402×513 37.1 KB

salut

10

Thank’s!
Now I can set all edges to be displayed.
The problem is, when that box is unticked, that one edge in the middle is showing up.
I don’t want to change the geometry in any bit.
It is as smooth as it should be, just like every other lines.
Just displays this wrong, but can’t figure out how to correct that.
Tried several ways of getting rid of eachface and redrawing them, but it didn’t help.

11

[ATTACH=CONFIG]234335[/ATTACH]

Edge needs to move down just a hair.

12

Thank’s!
That answeres the problem.
Have no idea how it happened, this shape was tend to be made from horizontal edges.

13

that could be a problem if normals down like that
may you should have double layers and have all normals outward
or it will have problem rendering in cycles

happy cycles

14

I know i’m kinda late, still. File “sss.blend” - there are double vertices in it, nobody seems to mention that.

To resolve that visible edge/skewed normal problem and also deal with smoothing of the top dense mesh part - did you know you could hide faces/edges and select edge loop on sides in between hidden parts, then use LoopTools Relax? By “hide” i mean separate out mesh part you need to apply Relax,say marked edge across in image.

loop_smooth.png756×524 85.9 KB

15

Haven’t know about that, thank’s!

Reworked the whole thing from scratch.
I know the bottom part of that ceiling is not 100% correct geometrically,
but who could tell.
https://dl.dropbox.com/s/pad5yb0g9yo7yvq/s2.blend

16

there is a script to make spiral staircase if i remember well!
or i can give you a spiral to fit inside you tube like shape!

salutations

17

Thank’s!
I will work with the recent version, if came out pretty close to what I wanted to model.

A more problematic part is the entrance-hole.
It is something like connections of pipes, and the only method that I can work on it is
editing the result of some boolean-modifyers.
Doing this because I would like the faces to have the same normals as originally, so
I’m making faces with more vertices, not triangles.
That was the plan at least.
But with that, had to go with the mesh becoming open.

18

show some pics so we can see what you mean !

happy cycles

19

Take a look at Knife Project functionality, can be better than boolean cleaning.

20

One cylinder with a horizontal axis, two-three with a vertical,
and all “as solidified”, so that’s the boolean result of 6-8 cylinders.

lk2.PNG1012×673 24.4 KB