Close the bottom of the shank

[Anonymous]

Hi Guys,

hope you've had a good Christmas.

First of all I don't know why I passed to rank of 8 to 1... 😑 but, go ahead.

You can find the images of a ring I've made. I suppose to have not followed correctly the right way to close the bottom of the shank to get the result of the final image.

I played with no ideas with projections, surfaces, booleans and so on but I've not achieved a clean result.

How would you do it?

Thanks a lot for any advise.

Regards

Marco

[gabrielcabellos.103]

He man! I'm fine and you? 

I think it would be best to work with surfaces. I would create a reference path using the surfaces and then use the Patch, Sweep, and Loft command to generate a matching surface.

These commands I've quoted can make smoother transitions from one region to another. When you use Extrude/Revolve, it creates interrupts in the model.

Try to create a reference surface based on the model. You will find that there are several tools that ease corners and make smoother transitions. If it works, try recreating these surfaces in a new file without needing this photo solid.

[laughingcreek]

attach your model to get some more specific help.

[Anonymous]

Thanks Gabriel, I've done so... but, you can see, I've for sure used the wrong workflow with the wrong commands...

If you think it's possilbe to avoud that solids, I'll try.

Thanks a lot

[Anonymous]

Good. I'm saving it in .f3z... but it's taking lot of time🤔

[Anonymous]

Can't attach the file!

This evening I'll provide a dropbox link!

Thanks

[Anonymous]

Here it is.

Please rename it in .f3z before open it.

Thanks a lot.

[laughingcreek]

it would be better to export as a .f3d file.  If you have linked components (guessing your stones are), then break those links first.  Then you can export as .f3d.  It's a pain and time  consuming to dealt with .f3z files on this end, and I generally don't.

[Anonymous]

Oh thanks... another thing I've just learnt 😉

For that reason I can't attach that kind of file. Just followed your advise. f3d attached.

Thanks a lot.

Regards

[Anonymous]

Hi guys,

any advise?

Thanks

Marco

[laughingcreek]

One of your issues is the pipe command will twist around it's path if the path isn't planer.  the pattern on path and the sweep command suffer from the same issue.  the sweep command however has additional setings to help with this problem. 

another issue your having is the way you drew the spline path doesn't create a circular shape for the ring.

you can create a cylinder that represents the surface you want the path to be on, and then do a "project to surface" set to "nearest point" to correct the path (a kludge but works).

then, instead of pipe, try placing a "plane a long path", then put a sketch of a square on the plane, and sweep the square, using the cylinder from before as a guide surface.

or you could try a completely different approach that works well for this type of object, which is making it flat and using the sheet metal tools to roll it into a ring shape.  there are several threads on using sheet metal to bend things.

[laughingcreek]

here's an example using the sheet metal approach

[laughingcreek]

here is an example projecting the path using closet point to a cylinder and then sweeping.

[Anonymous]

Hi laughingcreek,

those can be valid solutions when I've in mind the final shape, right?

But I've reached the final shape by editing spline and profiles to see the results while modifying the model.

Do you think it's possible to close correctly just the bottom of the shank avoiding editing on the other parts of the model?

I've an idea in mind, but now I'm not able to do it... let's do it this evening... I'll let yoy know!😅

Thanks for the idea of that new workflow...

Marco

[laughingcreek · Accepted solution]

I suppose you could do something like this. (I dumped your history and just worked with the resulting body)

[Anonymous]

Great job!!!!!!!!!!!!!!!!!!!!!!!!

Exactly what I've wanted to achieve...

I was able to do something similar, but not so clean!!! This is perfect!

I've to dig into it! Very appreciated!

Thanks a lot!

[Anonymous]

Any ideas on how to sculpt the entire ring in the sculpt environment?🤔

Regards

Marco

[laughingcreek]

this approach in the sculpt environment gets you to  a base shape that can be further modified.  be warned, the sculpt environment is trickier than it seems at first.  a skill set and mind set is needed than brep/nurbs modeling in the rest of fusion.

[Anonymous]

Hi laughingcreek,

first of all, thanks for you help.

I've had a look at your files... As you can see in the images attached, there are smallest gaps between the added part and the original ring... How to avoid that? The other cut (the upper one) is perfect. From what I can see, my mind has the focus on finding the solution and not "how to find a solution". Infact, there are more than one workflow and sometimes we have to destroy and then rebuild to achieve the result... more difficult than expected 🤔

InsideOutside

[Anonymous]

For the question about sculpting the ring, ok you use the sculpt environmet, but in a way that not allow to see a change after change.

So, you know exactly earlier where you want to go... I meant to start from a form and move, rotate, cut and so on, to reach the final result without knowing the goal before you start...

For this sculpted ring, you used a sort of celtic knot technique, am I right?

Thanks for your help.

Marco