Manually Creating a Custom Stair

[FBernardo]

Hi all,

 

I'm creating a whole stair manually as the stair tool won't be able to do this kind of stair.

 

But i'm having some issues with the Handrail creation.

I've tried Sweep for the curved part so i can also add height and angle, but then i don't know how to join those 2 sweeps, thinking on using Extrude along the path but i'm having a hard time adjusting.

 

other idea was trying to create a whole 3D polyline and use the extrude along the path but at a certain point it seems it just twists the shape and doesn't look nice, but i will keep trying on this idea a bit further...

 

Any other suggestions ?

 

Some images

Blue arrow - Sweep curve

Pink arrow - extrude along the path but is giving a weird twist at the top.

 

 

 

[grant_PD]

I've done these before using lofts and/or extrude along path.  In your case the middle part where there is no curve could be built as 1 pc, then the top and bottom joined up to it.  Play with the options in the extrude along path dialog, those are helpful in keeping the profile oriented.  Another good trick is to build the extrude along path with the curve flat on the ground, and then after it's built you can manipulate the points of the path curve to get it to move upward whilst curving.  

[FBernardo]

3 hours ago, grant_PD said:

I've done these before using lofts and/or extrude along path.  In your case the middle part where there is no curve could be built as 1 pc, then the top and bottom joined up to it.  Play with the options in the extrude along path dialog, those are helpful in keeping the profile oriented.  Another good trick is to build the extrude along path with the curve flat on the ground, and then after it's built you can manipulate the points of the path curve to get it to move upward whilst curving.  

 

Hi Grant,

 

For some reason when i'm editing the points in the extrude along the path it turns the profile, even when i have the profile locked, which is annoying. Even when, i'm using a 3D poly it starts to rotate the profile for some reason even with the locked option on... 

[Tom W.]

You might need to divide your corners into two curves: one for the horizontal bend + another for the vertical.

 

This is a single EAP created with a single NURBS curve path

 

 

 

 

 

 

[FBernardo]

6 minutes ago, Tom W. said:

You might need to divide your corners into two curves: one for the horizontal bend + another for the vertical.

 

This is a single EAP created with a single NURBS curve path

 

 

 

 

 

 

 

 

Hi Tom,

 

how did you managed to make the profile not rotating? This is literally the problem that is going over my mind as it keeps rotating even with the lock profile in place when i'm doing the EAP command!

 

Would it be possible for you to share the file ?

[Tom W.]

Just try making the path like this, with each bend formed from two curves: one to turn the handrail on the horizontal plane + another to turn it on the vertical plane

 

 

I think this is how you'd make it in reality no?

 

e.g.

 

[FBernardo]

13 minutes ago, Tom W. said:

Just try making the path like this, with each bend formed from two curves: one to turn the handrail on the horizontal plane + another to turn it on the vertical plane

 

 

I think this is how you'd make it in reality no?

 

e.g.

 

 

 

I will give it a shot!