3d spiral design

[CateMako92]

Hi, I'm supposed to draw a building up in height with rhino 6, how could I do that? could I cut the surface already made with a tilted plane? But I don't know how to create tilted planes.

 

[Tristus]

You could build a horizontal plane and rotate it in 3d on the z axis, but if you cut that figure with a tilted plane you wouldn't get the result of the image you posted with watsapp. You would have a result like that of image 3, which I don't think correct.
rhino will surely have the command "elica" (or spirale3d) (I use autocad, but surely rhino has a similar command)
It is better to build an helix (or spiral 3d) with a radius on the lower base and a radius on the upper base, as a number of coils about 1.5, and a height. then extrude down the newly formed spiral and cut it to the base. After that work on that figure to do everything else

something like that:

 

[CateMako92]

You could build a horizontal plane and rotate it in 3d on the z axis, but if you cut that figure with a tilted plane you wouldn't get the result of the image you posted with watsapp. You would have a result like that of image 3, which I don't think correct.
rhino will surely have the command "elica" (or spirale3d) (I use autocad, but surely rhino has a similar command)
It is better to build an helix (or spiral 3d) with a radius on the lower base and a radius on the upper base, as a number of coils about 1.5, and a height. then extrude down the newly formed spiral and cut it to the base. After that work on that figure to do everything else

something like that:

thank you, unfortunately I tried with propeller but I can not handle it and change it. then in reality the spiral is formed by 3 circles and I don't know how to intersect.

 

[Tristus]

the spiral of fibonacci?
then you should build 3 propellers. each you leave where the previous one ends, moving from time to time even at altitude. this after identifying the 3 centers and heights.
the spiral controls with the number of coils. For example, if the coils = 0.5 the spiral does not turn 360 degrees but 180 degrees. you will first have to study the height to give to each of the 3 spirals.

 

[Tristus]

I made this spiral with 3 centers and 4 propellers, taking random measures. every piece of propeller 3d part where the previous one ends, and creating it by moving me from time to time in the various centers. as number of coils for each propeller approximately 0.33. then I joined the 4 propellers to form a single spline to be able to extrude. it is necessary to take some practice with the propeller, the concept is not difficult.