Create a quadra circle like a shell with visuells in VW

[LargoMargo]

is it possible to create a quadra circle like a shell in vector works? I need this kind of organic volumen for my concept, but i have no idea.. to make it with Vw. I have some expiernce with nurbs curve and circle volume, but its not possible to create my concept with this kind of tools. Please help me, if u know a way:)!

[Pat Stanford]

I don't have any idea of what a "Quadra circle like a shell" is.  Can you post an image of something similar to what you are trying to create?

 

[Elite Exhibits]

¿ Shell ?

 

Peter

Shell.pdf

[VIRTUALENVIRONS]

We covered this in the petal shapes last week.  I don't know how to bring that forward, but look for "shapes found in nature".

[VIRTUALENVIRONS]

Is this what you are interested in.

 

[jmcewen]

Or like this? Pic below and file attached to play with.

1. Draw your base polyline profile.
2. Extrude it a little, but not as tall as your intended shell.
3. Taper thje top face with the deform tool taper solid and symmetric mode so that the point ends up over or near the hinge side of the shell.
4. in side view, bend thte tapered shell in the bend solid  mode of the deform tool.  turn off the symmetric mode for this or you will get a mess, but turn on finite length.  First click the bottom of the hinge side of the shell, then the top of the hinge side of the shell.  drag the top around the hinge until you find something that looks good.  

shell sample.vwx

[bcd]

6 minutes ago, jmcewen said:

Or like this? Pic below and file attached to play with.

Cool, & then twist in plan please if you can

[jmcewen]

Twist the model or twist the view?  Not much luck using the deform tool for another wicked operation.  but if you just want to see a plan view here it is. 

i might have better luck if the flutes in the shell were not so extreme, but extreme was the fast way to draw this today. Here is a orthographic top view of a quick smooth shell that  I was able to bend in the other axis after the first aching bend, but it doesn't look too exciting.  just a proof of concept really.  it look s like the view is skewed, but it is straight down.  Initial polyline profile was a plain circle with a rectangle added to it.

 

Deform tool will get you out of a lot of jams, but usually also puts you squarely in a dead end.  Sometimes that dead end is good enough tot work with though.

[bcd]

14 minutes ago, jmcewen said:

Twist the model or twist the view?  Not much luck using the deform tool for another wicked operation.  but if you just want to see a plan view here it is. 

the model, but nice work ☑️

[VIRTUALENVIRONS]

1 hour ago, jmcewen said:

Or like this? Pic below and file attached to play with.

Really slick.  I never use these tools, good to see what can be done with them.

[jmcewen]

1 hour ago, bcd said:

the model, but nice work ☑️

 

4 minutes ago, VIRTUALENVIRONS said:

Really slick.  I never use these tools, good to see what can be done with them.

.Thanks guys, but only use it as a last resort.  I often get stuck in a process that fails 9 or 10 steps later if I rely on deform. Efficiency, simplicity, and patience are key to its use

[jmcewen]

Never underestimate the power of procrastination.  Problem solved by reordering the operations and removing the hinge form the base model.  it can be modeled separately and added later.

.

twisted shell sample.vwx

[bcd]

I can almost hear the ocean

[jmcewen]

1 hour ago, VIRTUALENVIRONS said:

Really slick.  I never use these tools, good to see what can be done with them.

Sound like me with NURBs.

 

But couldn't his same process be done with a bi-rail sweep.  it seems to be essentially the same operations using different tools to me, but my NURBs execution is clumsy.  if you start with a base profile and use 2 tapering/ twisting/curving rails, it seems that you should get similar results in my mind (if operating in NURBSs is a more comfortable environment.) My clicks just never seem to land where I want them to when I use NURBs.... 

[VIRTUALENVIRONS]

Sitting in the middle of a lake at the moment on our boat.  Refreshments are available.

Let’s talk NURBS tomorrow, great work.

[VIRTUALENVIRONS]

There are several ways you could go about this using the NURBS tool palette, but bi-rail sweep is a limited tool.   Loft Surface>No Rail is the key tool for most applications. 

 

I downloaded your file.  That last shape is really amazing.

 

BTW, I think we/you have hijacked this thread, but it is interesting.  I don't think the geometry we are discussing is what the client is looking for.  The Scallop shell is more of a extrusion than a sweep or bend as you have shown.

 

I recreated some shapes like yours using Loft Surface.  I twisted some curves, expanded another and morphed from a square into a scallop.  This is what NURBS brings to the table.  

 

 

[grant_PD]

Love all this stuff, then I try it and my brain just craps out.  How would I do something simple like taper these rectangles along this curve?  file attached.

 

 

taper.vwx

[VIRTUALENVIRONS]

Not sure exactly what you mean.  Can you elaborate?

 

Paul

[VIRTUALENVIRONS]

Is either one of these what you mean?

[grant_PD]

I have a path, on one end I have a rectangle at 1"x .25" high.  I want that rectangle to move along that path and end up 12" high at the end.  I've tried loft w/ 1 rail and it won't work.  

[grant_PD]

yes!  what steps am I missing?  why won't loft w one rail work?

 

[VIRTUALENVIRONS]

Don't use Loft   Use EAP with the exponential scale.  Also, something is wrong with your rail curve.  Use Rebuild NURBS in the 3D Power Pack.  Don't change any points, just select the curve, Rebuild and OK.

[grant_PD]

EAP w/ exponential seems so hit an miss tho.  I was able to do it by extruding and then taper face.  

[grant_PD]

[Jeff Prince]

15 minutes ago, grant_PD said:

EAP w/ exponential seems so hit an miss tho.  I was able to do it by extruding and then taper face.  

Assuming your curve is agreeable, the easy way to do this is draw the elevation, extrude it 1", then use the Bend tool.