Vase with pattern that scales with diameter

[jharding86]

I have been designing vases for a little over a month now using Fusion 360. I have had a great time, and I love using Fusion 360. This particular design has stumped me for a while now. The pink/red vase in the picture below. It has a pattern on it and the pattern scales/shrinks/grows with the diameter of the vase.

I have been using the sculpt mode quite a bit, and thought that if I could manage to get a cylindrical vase converted into a tspline that was compatible with sculpt mode, then I could shrink the middle of the vase. I haven't had much luck converting a model into a usable form for sculpt mode. I can't seem to make the pattern in sculpt mode either, so I am stuck designing in the model work space which doesn't seem to have the ability to "shrink" and "grow" sections of a model like sculpt mode can.

Any ideas on how best to recreate the pink/red vase below?
https://www.thingiverse.com/thing:2638924 by Ferjerez 

[davebYYPCU]

One Revolve for the horizontal rings, 

one Loft for a vertical rib, 

circular pattern the Loft.

Or are you wanting this to be changeable with parameter changes?  

[TrippyLighting]

@davebYYPCU how does the process you describe create that diamond pattern that scales as the vase thins toward the middle ?

[davebYYPCU]

The horizontal rings are equidistant so the revolved profile is a series of straight lines to a set depth, the lines are all the same angle.

the lofted profile is a triangle, with variable leg angles when the each rail is vertical, but pulling in to the depth of the rings.  Best I can put it in words, still on IPad till Monday my time.

[jharding86]

@davebYYPCU It would be cool to have parameters, but lets just start by making the vase in the simplest form. I don't entirely follow your instructions. Come Monday, will you be able to make a screen cast or something? I would be very appreciative if that's the case.

[davebYYPCU]

Ok, happy to see if what I think we can do can be done, 

I also think Trippy is onto some thing about the scaling, but I don’t see any scaling for the horizontal rings, not getting closer together, like the verticals do, so the waisted area will be a rectangular dimple, not a square dimple.

Do you have a size in mind, say - ??? Tall.

[jharding86]

It appears as though you are correct, the dimples stay the same height, its their width that change, to accommodate a smaller diameter section of the vase.

Lets call it 200mm tall, top and bottom diameters of ~80mm, and the skinniest section of the middle reaching ~60mm.

[davebYYPCU · Accepted solution]

Here we go, file attached, few decisions on the fly, little bit of testing, and of course counts and angles to suit,

stepping up the timeline, 

Revolved profile, with lines perpendicular to each other, and also normal to the curve.

Spine count from photo appears to be 12.  Sketched the spine face lines on the base of the vase, 

Plane on angle, 15 degrees, and project the body into the new sketch, and create the internal gutter line, with tangent arcs, to connect the curve to the profile.

Patch > Revolve the gutter line, 30 degrees.  (building the spine faces (rear))

Sweep > Path with Guide rail, the left face of the spine, with the curves in sketch 1 (path) and 3 (guide).

Patch > Modify > Trim the face to the rear revolve.

Mirror the left face for the right face.

Create an offset plane on the top face of the vase.

Boundary fill the three patch bodies with the top offset plane and the origin plane.

Circular pattern the 12 spines.

Combine Join the spines to the Vase.

Might help....

[jharding86]

@davebYYPCU Mind blown! You looked at that vase in a totally different light than I did. Thank you for sharing how you did this. In 13 steps! Honestly I need more practice. Well done sir! I wish I could capture your thought process on this, next best thing is Fusion 360 and its timeline.

Ok, so I have another picture, of another vase. This one seems more complex to me, does it seem more complex to you? Or could you do this in the same number (or close to it) of steps?

[jharding86]

@davebYYPCU I have already taken some of your methodologies and applied them to try and create some unique patterns that scale with the diameter of the vase...

Still working on trying to make that white vase I posted. Your demonstration opened my mind. I'm looking at objects much differently and trying to break them down into simplier shapes that I know how to create.

[davebYYPCU]

Yep, you are on the right track, photo as a guide, but you need specific detail on height and diameters for it to work, most likely a formula, to the math's gurus would do it.

There are likely better programs to do this as a texture, but this in not really my line of work....

@jeff_strater I was fiddling with the white vase and found the sweep command in patch, has stopped working here, see PM.

[jeff_strater]

yes, @davebYYPCU, there seems to be a bug in surface sweep if the path and profile are in the same sketch, it fails, but if they are in different sketches (on different planes) it works OK.  Very strange

[TrippyLighting]

@davebYYPCU very nice solution!

@jharding86 please mark one of Dave's posts as the solution.

[guillaume.dedreuxbreze]

Hello,

Do you have the file so that we can look or the explanations please?

Thank you in advance

Guillaume

[davebYYPCU]

Link in message no 8 above - not working?

[joeyzzzz]

I like the twist you put into #10.  Can you share how you did it?

Thanks,

Joe