please give me setting of curviloft in this case: method? geometry?.... or a screenshot of your vedeo
thank you from italy

thank you guys,

I'm proud that help arrived from Italy to Italy!

Now let's try to shake it tilting the shapes or modify the basis figure in 3d shape

thank you for your helps

all the best to you

Thank you Pilou,
As Jeff suggested I'd need to set up in size and position my basis horizontal and connect them two each time with curviloft, but it is too long for my design as in samples I posted where I solved simply with repeated pull/push+scale.... I search something to short this process

here is a .skp file and jpg files showing as follow-me doesn't work but push/pull+scale work but working in a very slow way

Base and profile.skp

if we have a push-pull and scale following a path of a 3d basis rail ( I mean a plan figure in 3d like a chipster) we can do it!

I don't want to leave sketch-up for Rhino; I designed these shape with sketchup with much effort using only starting from rail profile basis push-pull + scale sveral times to follow the path preferred and editing free hands the model. When a friend of mine sowed me Rhino does it in one shot command I got crazy.. It is a challenge to do it in sketchup.
Is there a good guy able to set up a plug in similar to "push-pull and scale following a path" (and an axis)?

this solid in picture is made by a real lathe with axis of rotation out of center and inclined, the spindle move along a rail profile.
in Rhino after designing the basis "rail" profile (2d or 3d), designing the axis rotation in one shot make this with "rail revolve" in one shot.

please tell me all the steps to follow in sketchup with a geometrical control of basis figures (1-rail profile, 2-section path, 3-rotation axis), without slicing in many parts

I want to this in one shot or easier way is possible.

In Rhino I can do this and more:
I can put the axis of rotation out of the center of the basis shape
I can have the axis of rotation not perperdicular to the basis shape
I can have the basis shape not on one plan but a 3d profile

thank you in advance for your solution

Thank you,

I need to turn followingan irregular shape, not a circle; and the second issue is to incline the axis of rotation in a non perpendicular direction - please see a tutorial image or video "Rail revolve" of rhino

I don't believe it works with tool you suggested...

I'm not able to find a way to have a command like 'revolve on 1 rail' like in Rhino, where you can do it (see tutorial on youtube...).
Extrude tools don't give the same results.
I thank anyone who is able to solve this...

Non trovo in Sketchup la possibilità di realizzare una figura descritta su wikipedia come

Rivoluzione su binario - è un sistema ibrido tra una rivoluzione e una sweep, si parte sempre da un profilo e da un asse di rivoluzione, ma vi si aggiunge anche un percorso di base (chiamato anche binario[13]), che il profilo dovrà seguire durante la rivoluzione

Oppure lo stesso è ottenibile daun solido estruso da una figura di base irregolare, lungo un asse rettilineo, che si scala durante la sua estrusione seguendo un profilo di sezione

Il tutto è fattibile si rhino con il comando "rail revolve" "rivoluzione su binario" di Rhino (vedi immagini e tutorial sul web).
con I vari plugin di sketchup di estrusione non ci sono riuscito.

grazie a chi sa aiutarmi
Andrea