tips on the most effective method to manage solids on a curved surface

[Silvia_8.9]

Good evening, everyone.
if you had such a situation to deal with on autocad (see attachment), what tools would you use?
In particular, I would like you to tell me which, according to you, is the most effective method of handling solids on a curved surface.

thanks to anyone who wants to participate in this discussion.

 

[rpor66]

According to me it solves using subtracts on a series of solids, the form to obtain a simple properly rotated box, the solids to subtract 2 cylinders, one for the inside of the pot, the other for the outside, nothing complicated. If you want, I'll put a video on how to proceed.

 

[Tristus]

If I have well understood, solids will have to follow the curvature of the cylinder, which complicates things a bit. are not vertical, and some are almost horizontal.
I would first build a horizontal band in which to draw in 2d the pattern formed by that structure that envelops the cylinder.
then I would wind that surface to form itself a hollow cylinder, with inside the cylindrical solid. then I would project all the polylines on the real solid (with command projecting surface). I would finally do the offset of the faces resulting from the offsets and merge the remaining surfaces.

But I'm not sure if autocad would allow a similar procedure, i.e. wrapping on itself a surface. with 3dsmax I wouldn't have any trouble, with autocad I see it more complicated

big way the work is to project the lines of the drawings on the solid and then extrude (or offset) the faces resulting from the projection to create therefore that cylindrical reticle.

if you are not obliged to follow by force a design of the predetermined lattice, the operation is simple. If you have to follow a drawing, then it's a little more complicated and at that point it would serve a function that would allow the winding I've talked about.

 

[gil]

the suggestion of rpor66 seems right to me.
However if you have to manage such a form with changes and adjustments, autocad, it is a bad tool. You should use something different.

 

[rpor66]

il video with the logic of realization

 

[Silvia_8.9]

il video with the logic of realization

Good morning. first of all thanks to all for the answers.
the video of rpor66 is clear and useful, thank you.
However the situation that arises to me is exactly the one described by tristus, a reticular band (opportunely studied) that should envelop a cylinder.

 

[LaboratorioDieci]

However the situation that arises to me is exactly the one described by tristus, a reticular band (opportunely studied) that should envelop a cylinder.

What if it's an angle pattern? from the image it seems to me a reason that is repeated 4 times.

 

[Silvia_8.9]

What if it's an angle pattern? from the image it seems to me a reason that is repeated 4 times.

the problem would always remain that of “winding it” on the cylinder

 

[LaboratorioDieci]

the problem would always remain that of “winding it” on the cylinder

even no. you can use the method @rpor66 with solids that partially intersect the cylinder to create a clove. then make three copies at 90° around the cylinder axis.

 

[Silvia_8.9]

even no. you can use the method @rpor66 with solids that partially intersect the cylinder to create a clove. then make three copies at 90° around the cylinder axis.

and if I had a flat surface to carry on the cylinder?

 

[Tristus]

autocad is always a wonder.
I didn't know there was a function that could wrap a pattern consisting of lines on a surface or on a curved solid. but there is.

the command should be uvvectormap (or is an external utility, I don't know)
Since I found it on the knowledge of autocad, I imagine it is present at least in the latest versions of autocad.
I can't experiment right now because I'm reinstalling all the software, crashing the hard drive, but I'm sending you back to the link in which this command is described.they have created a pipe to whose outer surface they have applied a pattern extracted from a horizontal and smoothed retinature. I didn't know that this command existed.

here is the link to which I add another video always taken from the web. with this command things are greatly simplified. Simply draw the desired pattern (in 2d) to the surface of the cylinder. then with the offsets of the faces is a game to build that reticle in 3d.
In practice you should first draw in 2d, wrap it to the cylinder and then extrude (or better perform the offsets of the faces that make up the drawing). It goes from itself that at this point it is advisable to build the cylinder by simply extruding a circle, so as to have only one cylindrical surface on which to apply with that command the design,

https://knowledge.autodesk.com/supp...ils/a3afe1be-968d-421c-81f6-167c375abfca.html

 

[Silvia_8.9]

autocad is always a wonder.
I didn't know there was a function that could wrap a pattern consisting of lines on a surface or on a curved solid. but there is.

the command should be uvvectormap (or is an external utility, I don't know)
Since I found it on the knowledge of autocad, I imagine it is present at least in the latest versions of autocad.
I can't experiment right now because I'm reinstalling all the software, crashing the hard drive, but I'm sending you back to the link in which this command is described.they have created a pipe to whose outer surface they have applied a pattern extracted from a horizontal and smoothed retinature. I didn't know that this command existed.

here is the link to which I add another video always taken from the web. with this command things are greatly simplified. Simply draw the desired pattern (in 2d) to the surface of the cylinder. then with the offsets of the faces is a game to build that reticle in 3d.
In practice you should first draw in 2d, wrap it to the cylinder and then extrude (or better perform the offsets of the faces that make up the drawing). It goes from itself that at this point it is advisable to build the cylinder by simply extruding a circle, so as to have only one cylindrical surface on which to apply with that command the design,

https://knowledge.autodesk.com/supp...ils/a3afe1be-968d-421c-81f6-167c375abfca.html

Wow. would be the ideal tool? later I try to see what I can do and I will let you know.
Thank you very much to all.

 

[Silvia_8.9]

autocad is always a wonder.
I didn't know there was a function that could wrap a pattern consisting of lines on a surface or on a curved solid. but there is.

the command should be uvvectormap (or is an external utility, I don't know)
Since I found it on the knowledge of autocad, I imagine it is present at least in the latest versions of autocad.
I can't experiment right now because I'm reinstalling all the software, crashing the hard drive, but I'm sending you back to the link in which this command is described.they have created a pipe to whose outer surface they have applied a pattern extracted from a horizontal and smoothed retinature. I didn't know that this command existed.

here is the link to which I add another video always taken from the web. with this command things are greatly simplified. Simply draw the desired pattern (in 2d) to the surface of the cylinder. then with the offsets of the faces is a game to build that reticle in 3d.
In practice you should first draw in 2d, wrap it to the cylinder and then extrude (or better perform the offsets of the faces that make up the drawing). It goes from itself that at this point it is advisable to build the cylinder by simply extruding a circle, so as to have only one cylindrical surface on which to apply with that command the design,

https://knowledge.autodesk.com/supp...ils/a3afe1be-968d-421c-81f6-167c375abfca.html

In fact, too nice to be true? I spulved on the internet, it seems to be a plugin but it is no longer available, apparently.

 

[Tristan]

download the rhino test, run the operation of aroll and flow, extrude the curves and then export to sat. You should thus get an acis file to be able to import in autocad with the desired geometry

 

[Silvia_8.9]

download the rhino test, run the operation of aroll and flow, extrude the curves and then export to sat. You should thus get an acis file to be able to import in autocad with the desired geometry

Thank you. @tristan. have we understood that autocad is limited?
Thank you very much.

 

[Tristan]

we have therefore understood that autocad is limited

there will be a reason if, for modeling 3d, autocad use it in 4 cats...or not?
for all the rest there is fusion360

 

[Silvia_8.9]

there will be a reason if, for modeling 3d, autocad use it in 4 cats...or not?
for all the rest there is fusion360

Is it a shame that I can't use it?

 

[Tristus]

You don't understand why they took away this utility. really incomprehensible.
And yet it is the usefulness that would happen.
I found another video.
very simply, you select the cylinder, the program immediately creates a rectangle that identifies the vertical surface of the cylinder itself, lying on a horizontal plane. After that you work inside the rectangle with the desired design (in the case of the video create writings) and then, with a lot of ease, wraps the cylindrical solid with the design. you can then extrude the faces.
It seems impossible to me that there is no equivalent utility

https://screencast.autodesk.com/embed/timeline/dedada19-281b-4a78-b672-b8c76f249ca7

(the video is at the bottom of the page)

https://forums.autodesk.com/t5/auto...curved-surface-in-autocad/m-p/7153334#m884315

 

[Silvia_8.9]

You don't understand why they took away this utility. really incomprehensible.
And yet it is the usefulness that would happen.
I found another video.
very simply, you select the cylinder, the program immediately creates a rectangle that identifies the vertical surface of the cylinder itself, lying on a horizontal plane. After that you work inside the rectangle with the desired design (in the case of the video create writings) and then, with a lot of ease, wraps the cylindrical solid with the design. you can then extrude the faces.
It seems impossible to me that there is no equivalent utility

https://screencast.autodesk.com/embed/timeline/dedada19-281b-4a78-b672-b8c76f249ca7

(the video is at the bottom of the page)

https://forums.autodesk.com/t5/auto...curved-surface-in-autocad/m-p/7153334#m884315

I don't even understand this choice.
Why would he really simplify the life of a designer?

 

[Tristus]

download the rhino test, run the operation of aroll and flow, extrude the curves and then export to sat. You should thus get an acis file to be able to import in autocad with the desired geometry

in the end this is the best solution. in rhino that utility is there... and it is free. Unlike autocad, which was paid instead. and they mysteriously removed her.
rhino in some ways, has a philosophy of operation similar to autocad (large way) so moving from autocad to rhino is less traumatic than going from autocad to fusion3d or 3ds max