Ribbing on vase

I would love to get help to do this on Grasshopper. I tried on Rhino 8 but to no avail.

Try more :slight_smile:

Reference Rive Roshan

Sometimes printed in Sand by SandHelden

Look a bit also to Gareth Neal

Also printed by SandHelden

Hi Laurent

I am just trying to improve myself on Grasshopper, I see that this design would only be able to be done on a parametric program like Grasshopper. I tried on Rhino with Circular Array , I can’t get the reversal of direction midway of the height , I was hoping to get some clues! not ā€œtry moreā€

Thank you anyway.

Marcel,
on this question you bring just a picture without reference, without the problem you want to solve, no greeting, no beginning of a work. So from where I seat it seems a ā€œdo-my-work-for-meā€

This link has some better picture (importance of the references)

I’ll do something like that
Make a shape (tube like)
Make a curve that cut the shape in 2
Apply the ā€œfinā€ tool on both shape with some attraction on the naked edges,
Don’t forget to inverse the fin inclination on both shape in order to have this kind of interlocking aspect.
Make a STL and send the design to Sandhelden, you’ll have an instant quote (I made 3 thinks with them). It was half the price from classic 3d printing company (sculpteo, shapeways …)

What did you try?

3. Attach minimal versions of all the relevant files

Thank you Rosanna, I am not actually trying to get this Sand printed but your information is very helpful anyway. I am an 80year old guy who is obsessed with Rhino which I love playing with as an amateur. it makes my brain work and thus delays demention. Is the fin tool in Grasshopper? I haven’t seen it on Rhino?

Hi Joseph

Thank you for your answer. I am not a professionnal, I am an 80 year old amateur who loves to play with Rhino as a ā€œpasse timeā€. I tried to do this vase on rhino by making a cylinder with a curve line in an angle against to cylinder and used Circular Array (80). The problem I hvae is the reversal at mid height. Then I tried to extrude each blade. I deleted the file ( I was frustrated) but I will redo it again and send it to the forum . May be someone can point out what I am doing wrong or guide me in Grasshopper? all the best .

This should give you a few things to think about:

Wavy.gh (19.5 KB)

It will indeed, thank you so much , that will getting me started.

Cheers

Marcel

HI Birk

I had a look at the .gh file you kindly sent. I’m going to have to study it , and teach me a lot about grasshopper. (Wonderful program by the way) but one must practice a lot to be good at it, You’re obviously are. Thanks

I’m happy to help you get started Marcel - I remember when I was in your situation. The GH file I posted is a bit more complex than it probably should be for someone just starting, but it was the best example I found that had geometry similar to what you wanted.

What helped me get going was to decide what geometry would give me the result I was trying to design, and then use whatever GH components were needed to make that geometry. The only thing I use Rhino for is to output files I’ve Baked from GH. That does limit my abilities compared to most people here, but it works fine for me.

And it is much appreciated. I have started to play around but God! it’s difficult. Can you tell me looking at the attached, which component do I use to array the vertical line around the 2 circles and the array of the vertical line to go from point to point the circles?

Cheers

Marcel

Trying array point to point.gh (7.6 KB)

You have a top circle.

You have a bottom circle.

Divide top curve (you’ll get points)

Divide bottom curve (you’ll get points)

Connect the points with a line / curve.

Hi @marcel1,

I’ve found it helpful to search YouTube or the web for similar projects to see how other people solve the problem. When I started in 2010, I watched everything on YouTube(it was not that much:)), just doing it step by step until I was able to do my first steps. The forum is also great, of course.
You could also check out general sources such as
grasshopper-primer/_downloads/GrasshopperPrimer_V3-3_EN.pdf at master Ā· modelab/grasshopper-primer Ā· GitHub
and Rhino - Learn to use Rhino
to understand the basic principles.

And don’t get discouraged, it’s a bit tough at first, but it gets more fun the longer you stick with it :slight_smile:

Also, please see attached to get an idea:
Wavy_RE.gh (11.3 KB)

You missed flipping the points/ data structure :slight_smile:

There’s no data in their file. Looked like just a straight connection between two points without any offset. Shouldn’t need any data tree flipping or anything.

ups. My bad. was not looking in that file. Now I see.

You need to internalize your data - else you’re just sharing empty files. Right-lick on your curve container > Internalize Data. Do that for all of them or whenever you’ve got reference geometry.

Both inputs to Seam should be lists of the same length. ā€˜C’ has 35, ā€˜t’ has 36.

The Range ā€˜N’ input needs an ā€œx-1ā€ expression.

You are right!