I will try to scale the model as you suggest, to avoid the little artifacts.
I'm grateful to Cotty for his help, and I really appreciate it, but I tried working on the whole column because it gives me a Solid model. If I use the 1 sector method, I don't get a solid (tried with the .skp file Cotty uploaded). I need a solid because the model may be exported to Autocad file format.
Also, I was using Curviloft's create loft junctions following a path to create the column by joining the 2 circles along the middle line(top circle has a smaller radius than the bottom one), but I can achieve the result using Follow Me tool, also.
Since I don't know how to work with Autocad, nor do I have it, is it ok to export to it an object that is not a solid, object that might actually be created in stone or wood? It has to be in Autocad format since the manufacture team that is executing it doesn't work with Sketchup.

Thank you guys for your answers, I tried to reproduce the column using your method, but another problem arises: when I intersect and then delete the details, the geometry is getting screwed up. I attach a pic and the skp file.
Am I not doing something right from the beginning? The steps I followed are these:

1. create column using Curviloft plugin
2. create the 3d cilinder detail using Follow Me tool
3. Rotate-Copy the cilinder onto the column
4. intersect
   And when I try to delete the exterior cilinder parts from the column, the geometry problem occurs

clmn2.skp

May I ask you how did you managed to push the detail in that component? What tools did you used?

Hi,
I'm having a bad time trying to create some details on a column. It's a curved surface. I used Joint Push/Pull by fredo6 but it doesn't help me. I'm trying to push the red marked details inside the column a little. Here's a picture and the .skp file.

Is there any way I could do it?

clmn.skp

Thank you both!

@dave r said:

Edit: I just zipped this out in SketchUp but if I were doing it for a job, I would do the dimensioning in LayOut.

Hi,
I have a quick question for you guys: I'm using BZ_Toolbar->Classic Bezier Curve extension to draw curves representing alleys, for example. How can I dimension the relative location of the curve (points?), so the execution team knows exactly how to do it? Basically, let's take an example I found:

I want my bezier curve to be represented in the detailed plan just like the purple one in the above image. How can that be done in Sketchup?
Also, is there a way to automatically add a scale like the one in the pictures (up-right scale: 1,2,3,4,5,10,15m)? Perhaps a plugin or something?

Pilou, thank you for the help you provided, but unfortunately I don't speak french and wasn't able to understand a lot from Didier's guide, or from the french subforum.
Are you kind enough to make a video out of Didier's guide, if I don't ask too much? Or maybe using the Boolean method which I didn't quite understood what you mean by that.
Also I would like to know how can you intersect 2 roads that have different width, and they intersect up on a hill, for example. Your help is much appreciated, thanks again.

I've followed some interesting tutorials using the SandBox tool and I come across a paid plugin (I'm using a free version of it which has limitations), a paid plugin that does some very cool stuff with just a few mouse clicks. I'm talking about Instant Road plugin from Vali Architect. What I'm asking is how the heck is that plugin doing its job? for about 3 days I'm playing with the SandBox tools and can't get the same result as when I'm using the plugin.
Here's a pic of what I'm trying to accomplish

Basically: how can I create that type of road without using that plugin? The plugin's subscription fee is expensive for me, so I have to find a way to work without it.
Or maybe you have knowledge of other plugin that does the same thing?

Thank you.