winding on ball

[MARCOC]

Hello everyone
I put a file where I shaped a sphere.. to which I wrapped a rectangle starting from the center of the sphere
the result however is strange, in how much the winding turns out slightly tilted as if it were a mini helix
Does anyone know how to give me any explanation? ? ?

 

[LaboratorioDieci]

increases the precision parameter

 

[MARCOC]

hi shirocco.. where does he move? ? ?

 

[teseo]

There he is.

 

[MARCOC]

I tried, but it still remains approximate, so I must deduce that solidworks cannot optimally manage the winding on a spherical surface.

can you make the two sides comfy, using the sketch I made?? ?

 

[teseo]

I tried, but it still remains approximate, so I must deduce that solidworks cannot optimally manage the winding on a spherical surface.

can you make the two sides comfy, using the sketch I made?? ?

Sorry, what sides? you can post an image, to me seemed correct the result. . .
Hi.

 

[MARCOC]

look at the shizzo that I have billed on the central floor of the sphere

 

[teseo]

I took your file and I increased the accuracy to the maximum the result is what you see (hope) in the photo all matches......
Hi.

 

[MARCOC]

to me even if I increase to the maximum points I can not join them with a line that is horizontal
remains slightly inclined

 

[teseo]

maybe it is a limit of 2017...boh; I didn't find anything wrong,
a tip restarts the machine and remakes the file from scratch....

 

[MARCOC]

Try to put the horizontal or vertical bond according to how you shaped it... and see immediately if it's perfectly linear. ..because if you connect the points and tilt very little and you do not agree visually

 

[MARCOC]

see that the horizontal bond does not accept it. ..visually you do not notice, but remains cmq inclined of a very small quantity

 

[LaboratorioDieci]

wrapping on a double curvature surface, like its flattening, is always an interpretation of the system, as there is no mathematical solution to the problem. what you have is a limit case, as we can imagine the solution as composed of regular geometries. probably solidworks has an algorithm that treats this exception as all other cases, in which we will generally have organic forms that we would not have a way of measuring. perhaps in this case the wrap is not the best solution.

 

[LaboratorioDieci]

So much to say...

 

[MassiVonWeizen]

I opened the file and wonder if it makes sense to use the winding function to try to get a semi ring that, as Shirokko shows, is obtainable with a simple revolution.
Moreover it is not even a solid, but a supoerficie without the inner face.

 

[MassiVonWeizen]

also in 2019 increasing accuracy the problem is resolved; converting the upper edge and drawing a horizontal line the resulting quota is linear and not to the angle.
it can be assumed that the wind/wrap function has been improved over the years, on the other hand in 2017 was a new option

 

[MassiVonWeizen]

@marcoc Of course, you'd also like a match in your discussion.
Why do you always have to pray to have, I do not say a thank you for your efforts, but at least a signal of confrontation?

 

[MARCOC]

on this mass...I don't have a match..in the sense that it has me wrong the allocation with 2017, just I can place what I would have wanted to get, or better what I would need to use that command..che not and to make a trapeze in revolution
to the most taken place the file

 

[MARCOC]

I put what I would like to get and that with the winding does not work, I better not get the projection that I would expect

 

[LaboratorioDieci]

try to take as reference the center of the sketch. if you restrict the construction line to the middle point on the origin then it becomes more manageable