how to cut a surface?

[alex369]

Hello everyone,
I have a problem with the "tasca" feature. in the following part, the big cylinder was created by solid modeling, then applying a pocket it is "cut". On the contrary, those "prisms" (unfortunately not planar) were created by surfaces and therefore are not cut from the pocket (I would have to extrude them but I can not because they are not on the floor).
Does anyone know how to solve the problem?

 

[gianni55]

Hi.

the surfaces are cut with other surfaces (or floors etc.) the pocket has no effect. . .
in this case you can also make a surface with which you will cut the solid first and after the surfaces

next time try to complete the solid (maybe using some integrated surface with the seam surface command) and then do the pockets.

Hi.

 

[alex369]

Hi.

the surfaces are cut with other surfaces (or floors etc.) the pocket has no effect. . .
in this case you can also make a surface with which you will cut the solid first and after the surfaces

next time try to complete the solid (maybe using some integrated surface with the seam surface command) and then do the pockets.

Hi.

the point is: after creating the sketch of the cutting surface, what feature should I use to remove the material?

 

[gianni55]

in the part design environment (solid) use the same surface and use the feature size
in the generating environment shape design (superfici) do the sketch and the cutting surface (by extrusion of the sketch curve) and with the feature size, cut the surfaces: attention that from the image, I see that you can only cut 2, for the others depends on how you have done them, you will be able to cut/hide/delete

 

[alex369]

in the part design environment (solid) use the same surface and use the feature size
in the generating environment shape design (superfici) do the sketch and the cutting surface (by extrusion of the sketch curve) and with the feature size, cut the surfaces: attention that from the image, I see that you can only cut 2, for the others depends on how you have done them, you will be able to cut/hide/delete

I unfortunately receive mistakes. I did the test on the following piece, making first a pocket (schizzo -> part design -> pocket) that cuts me the "solid part" (remain the fins, created through surfaces)when I try to go into the workbench "generative shape design", I create the sketch, extruded and try to apply the feature size, I receive the following error:

cutting or remittance operator: warning: the location of some cells is ambiguous. use the save/remove option or change the contact of the input body.

if instead I try to use insert -> volumes -> removes, I receive a different error:

an unprecise contact between the body produces an unconnected result. the highlighted faces are tangent but not united: the result is composed of several domains. reconsider the body design or use the feature remove pad to remove any.. .

I also put the image of the surface that I would use as a cutting element:is this always a problem due to the fact that he used a hybrid modeling?

 

[gianni55]

You have to see how it is done, send me the part and then I tell you how to do it.

Hi.

 

[alex369]

I sent the file in question, it is a case of an engine with internal palettes. when cutting to a quarter the part, the palettes (created by surfaces) are not removed.

Thank you in advance!

 

[gianni55]

It is not easy to explain in a few lines the problems, however I try:

1) when cutting a surface with a cutting surface, these if intersecting is all right, they do not give any problem, the cut happens regularly; but if the surface to be cut is actually formed by multiple uneven surfaces, the "forbici" of the command, will cut those that intersect, but the others do not, then leave them where they are...

So you should separate them and delete those that are not needed, but you no longer end...

I suggest you turn the fins into solids, in this way the feature pocket, acts as a "cold" of the material inside the area, eliminating everything that finds, even if they are so many wings apart from each other...


Another suggestion, try to do less operations, put all the wings together and then make a single circular matrix.

However, I refer the part to 3 different modes, the other details apply what you feel safer on.

Hi.

 

[alex369]

It is not easy to explain in a few lines the problems, however I try:

1) when cutting a surface with a cutting surface, these if intersecting is all right, they do not give any problem, the cut happens regularly; but if the surface to be cut is actually formed by multiple uneven surfaces, the "forbici" of the command, will cut those that intersect, but the others do not, then leave them where they are...

So you should separate them and delete those that are not needed, but you no longer end...

I suggest you turn the fins into solids, in this way the feature pocket, acts as a "cold" of the material inside the area, eliminating everything that finds, even if they are so many wings apart from each other...


Another suggestion, try to do less operations, put all the wings together and then make a single circular matrix.

However, I refer the part to 3 different modes, the other details apply what you feel safer on.

Hi.

Thank you very much!
by transformation of solid fins is the command of extrusion (the one in violet, to mean, surface with thickness) applied to the surface?

Besides: can you recommend me a good manual from which to study these things?

 

[gianni55]

please try not to use volumes commands (violet), solid fins you will see in the examples of your part you will receive modified 3 times

in houses 01:

I copied the base surfaces in a geometric group, then with filling I closed the sides, and with union I generated a closed fin, then inside a new body with close a surface I created the solid... doing this of all the basic fins, then only one circular matrix is enough to get what it takes.. .
the cut you have to do several times, but it remained parametric

in houses 02:

I copied and fired solids (with paste as result) and then assembled them so as to cut in one shot only

in houses 03:

I copied and glued solids with as result in a single solid so as to cut in one shot only

You still haven't told me what the cuts are for: is it just for the explosive presentation? If so, you can use different strategies to avoid remaking everything.

I didn't read manuals, so I can't answer you. from what I've seen you the cables benign, you just need some hint of setting.

 

[alex369]

please try not to use volumes commands (violet), solid fins you will see in the examples of your part you will receive modified 3 times

in houses 01:

I copied the base surfaces in a geometric group, then with filling I closed the sides, and with union I generated a closed fin, then inside a new body with close a surface I created the solid... doing this of all the basic fins, then only one circular matrix is enough to get what it takes.. .
the cut you have to do several times, but it remained parametric

in houses 02:

I copied and fired solids (with paste as result) and then assembled them so as to cut in one shot only

in houses 03:

I copied and glued solids with as result in a single solid so as to cut in one shot only

You still haven't told me what the cuts are for: is it just for the explosive presentation? If so, you can use different strategies to avoid remaking everything.

Yes, the cuts serve for a view of the dissected product, like this:I have to make a pocket everywhere. I also tried to take advantage of "assembla" for more body (as in the modified part I received the first time) but on some body it gives me error.

 

[gianni55]

so that Boolean operations such as the assembly work well, it is necessary that the body be built in a linear way, otherwise if we ask him illogical things, the system refuses. .

Now if you have to provide a 1/4 section isometric view, or you're careful about drawing and do very quickly (as for example), or you're forced to make a pocket in every part and transform what you've done in volumes/surfaces into solids...

otherwise if a planar section is acceptable (like the other examples attached), you do fast and you do not have to resume everything.

The fact that when you make the rendering comes out of the section, I think it depends on the settings, they get all right.

Let me know.

 

[alex369]

exactly, I'm interested in a silky rendering, so I let the drawing stay. I have carried out my pockets everywhere, the only one that gives problems is that of casing, which now I try to "set up" using the suggestions written before.

 

[gianni55]

I sent it to you yesterday.

Hi.