hidden surfaces appear in step/iges files

[LordKelvin]

Good morning.

I have a product made by various under product of only surfaces. I had to overlay 3 similar models to get what I wanted and then I hid the surfaces I didn't need. when however I saved in step (as in iges/igs) these surfaces appear despite in options I have settling not to save them in the file step... .

In fact other hidden surfaces (other than in the project) are not saved. .

Strange enough and I can't find a solution

thanks in advance for any advice/suggestions/ideas.. .

Mario

 

[Vittorio]

Good morning.

I have a product made by various under product of only surfaces. I had to overlay 3 similar models to get what I wanted and then I hid the surfaces I didn't need. when however I saved in step (as in iges/igs) these surfaces appear despite in options I have settling not to save them in the file step... .

In fact other hidden surfaces (other than in the project) are not saved. .

Strange enough and I can't find a solution

thanks in advance for any advice/suggestions/ideas.. .

Mario

Hi.
Are you using hybrid modeling?

 

[LordKelvin]

Hi.
Are you using hybrid modeling?

Usually when I start a new product let activated the option allow hybrid modeling.

In this case they passed me a step model of only surfaces that I had to modify in practice overlapping 3 to get my purpose and hiding the unnecessary surfaces. I could not change it directly because they were all geometrical sets (not editable)

 

[LordKelvin]

to be more detailed I have a mannequin to which I have to change orientation of arms and legs.

by not being able to modify/seprate directly on the main model I opted for a solution "casareccia" (the customer only needs a generic model not detailed) overlapping different mannequins and turning those I needed to get right orientation of arms/gambes... then I hid the surfaces that I didn't need (I created copies with names like mannequins1, mannequin2, etc) and then put them in a generic together

such surfaces reappeared in step/igs file

 

[Vittorio]

to be more detailed I have a mannequin to which I have to change orientation of arms and legs.

by not being able to modify/seprate directly on the main model I opted for a solution "casareccia" (the customer only needs a generic model not detailed) overlapping different mannequins and turning those I needed to get right orientation of arms/gambes... then I hid the surfaces that I didn't need (I created copies with names like mannequins1, mannequin2, etc) and then put them in a generic together

such surfaces reappeared in step/igs file

I would export to iges, the step makes sense if there are solid models. in your case it seems to me that they are only surfaces
before saving in iges make sure that in options it is set as the image I attach you.

p.s I advise you to use hybrid modeling

 

[LordKelvin]

p.s I advise you to use hybrid modeling

Thank you.

How come you tell me? so if I want to use surfaces and solids in the same part better have two distinct parts one for surfaces and one for solids? What would the hybrid model really serve? ? ?

Thank you.
- - - updated - - - -the sectage and already as in the figure you sent. in fact also igs saves with the same problem

 

[Vittorio]

Thank you.

How come you tell me? so if I want to use surfaces and solids in the same part better have two distinct parts one for surfaces and one for solids? What would the hybrid model really serve? ? ?

Thank you.
- - - updated - - - -the sectage and already as in the figure you sent. in fact also igs saves with the same problem

no, the catpart can contain both solid and surface. and if you have solids better save in step.
if you do not use hybrid modeling all surfaces ,line,points ,spline are placed in a geometric group. while using hybrid modeling is sequentially inserted in the tree. with non-hybrid modeling there are more possibilities to exploit geometries

if you can and does not violate the privacy of your client. . I'll see if I can help you

 

[LordKelvin]

no, the catpart can contain both solid and surface. and if you have solids better save in step.
if you do not use hybrid modeling all surfaces ,line,points ,spline are placed in a geometric group. while using hybrid modeling is sequentially inserted in the tree. with non-hybrid modeling there are more possibilities to exploit geometries

if you can and does not violate the privacy of your client. . I'll see if I can help you

Unfortunately, it violates privacy. follow your advice on hybrid modeling.. .

What do you mean more in detail for there are more opportunities to exploit geometries?

 

[Vittorio]

Unfortunately, it violates privacy. follow your advice on hybrid modeling.. .

What do you mean more in detail for there are more opportunities to exploit geometries?

Let's see if I can explain it to you. ...spero
in hybrid modeling lines, surfaces, points and more.. are inserted into the tree sequentially. This condition you because if you want to insert ,in a given point of the logical tree,a sketch with a subsequent extrusion or pocket using an existing plan on which to perform the sketch..you have to insert it after the previously created plan. this does not happen if you use non-hybrid modeling. with non-hybrid modeling all geometric references, lines, circles, planes, superfici. etc.ecc are automatically inserted into a geometric group and are released from sequential creation. then there are other advantages that I find complicated to explain to you with a boring text.
I hope I have sent you the concept

 

[Vittorio]

Grazie...

 

[LordKelvin]

Grazie...

Thank you so much, I didn't have time to read the forum well and your answer properly, back to work today.

I hope you didn't get it.