complex iges objects

[tomasimattia]

Hello, everyone, I'm writing to you because I have a problem with rhino. I've been through 3d made with solid edge, importing surfaces without problems with iges. the object, however, is very complex and hard to rotate etc.. etc. considering that I have an fx 1800 painting with a hp z400 workstation with xeon 2,6 ghz at 8 core and 4 gb of ram, I wonder if I can simplify the superifices.. the same object in solidworks 2010 not from problems but I did not want to allocate a corporate budjet of 6000 euros for solidworks when the design of solids have already made it to me.

 

[Ezio Olivato]

Yes, but what's your problem? Can't rotate? and if the problem was the know! registry keys, for example, or what else? !
You have a directive that obliges you to use rhino if you want to do what?

 

[mariuss.r]

Hello, everyone, I'm writing to you because I have a problem with rhino. I've been through 3d made with solid edge, importing surfaces without problems with iges. the object, however, is very complex and hard to rotate etc.. etc. considering that I have an fx 1800 painting with a hp z400 workstation with xeon 2,6 ghz at 8 core and 4 gb of ram, I wonder if I can simplify the superifices.. the same object in solidworks 2010 not from problems but I did not want to allocate a corporate budjet of 6000 euros for solidworks when the design of solids have already made it to me.

iges format doesn't handle solids, so when you import from a file what you get is a set of untied surfaces between them.
If the object is very complex, because it consists of thousands of surfaces, it is heavy to handle it in rotation, shift etc.

the thing to do is to give the _join command that combines the surfaces that have common edges in polysuperfici, this will make rhino faster in the above mentioned commands.

I with a less performing machine of yours, I have no problems with files from 90-120 mb

 

[tomasimattia]

I answer to both of you: I'm not obliged to use rhino, but what can I use? to me give the 3d of the molds from which I have to assemble them to make mounting cards and render with photoinserimenti. . instead mariuss the command you tell me gives me problems for the cut surfaces of iges and does not join me!

 

[mariuss.r]

I answer to both of you: I'm not obliged to use rhino, but what can I use? to me give the 3d of the molds from which I have to assemble them to make mounting cards and render with photoinserimenti. . instead mariuss the command you tell me gives me problems for the cut surfaces of iges and does not join me!

1) so that the adjoining edges of two surfaces can be welded together it is necessary that the distance between them is lower or equal to the general tolerance you set in rhino preferences.
verify tolerances.

2) If there are trim issues, I recommend using the _rebuildedges command
that reconstructs the trimming edges of surfing. you can use it by selecting all surfaces . then use the _join command

the best format to import solids in rhino is step. I regularly use rhino hanto with pro/engineer, the objects on which I work are quite complex and I have no problems transferring between one program and another.

How many surfaces are we talking about?

ps: As an alternative to the above, you can rasp all surfaces with the _group command (which should give almost the same benefits as _join)

 

[Ezio Olivato]

other solution could be export 3d files in .3ds format and reimport it from rhino as 3ds file. in this way you get two results: firstly lighten the file, from solid converts into polysurfaces; for second it joins all faces in a single stroke by returning the file as polysurfaces. Try it and tell us how it ends.
hi and good work

 

[tomasimattia]

Ezio, 3ds is not possible! I pass the files from solid edge............

 

[Ezio Olivato]

Can't you ask them to send them to .3ds? seems to me that solid edge has export option, or not?
in the worst of the hypotheses, attach the file to dwg, stop that some pious soul converts it and sends it back to you.

 

[tomasimattia]

the problem is that I have something like 800 components it takes a saint! I wonder if it's a rhino limit and so I need an advanced 3d program.

 

[mariuss.r]

the problem is that I have something like 800 components it takes a saint! I wonder if it's a rhino limit and so I need an advanced 3d program.

No... It takes the step format, the only one that maintains the singularity of solids. Don't tell me if you don't export to stp, because I don't believe it:

can't just post one component to understand what kind of problem you have? (maybe the least significant)

 

[Onda]

as rightly says mariuss the step is the best format.
of the two formats (ap203 and ap214) it seems to me that the second allows each body to maintain colors and that end on a different layer. This way it is easier to choose and display components.
Then, to speed up the screen rotations, I suggest you uncheck the display of the isocurves of the surfaces.
finally verify the setting of the opengl settings of rhino.
to evaluate if the setting is correct you have to have a certain amount of screen objects and use the command
_testmaxspeed. this rotates the objects to the screen and returns the time necessary to the rotation, your better setting will be the one with the minimum time.

wave

 

[tomasimattia]

sure that it exports, in fact they tried to give me the file in step, in iges and parasolid.
This is one of the normal cases, where solidworks does not plant, rhino yes! the object can not zoom in or move, impossible to work!

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[tomasimattia]

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[Ezio Olivato]

I see it's a repeated series. Why don't you isolate an element and work on that?

 

[tomasimattia]

you well consider that it is as a unit measuring 10 modules, I can get up to 64 modules then 640 on two extruded bifacial profiles.... total 640x4 = 2560 modules. solidworks doesn't bother me, snaps a bit but keeps banging, considering that it also has all the other components

 

[Ezio Olivato]

develop the single item as you need, then create a group and multiply it as much as you need. so it should be more manageable: Try!

 

[tomasimattia]

now I try these optimizations! thanks to all for the collbortion

 

[enri]

But forget about the 3ds format, it makes you become the mesh object, with triangulates mileage I imagine, worse. if needed you can work with shaded display, or rendered, is much faster.

 

[marcof]

solidworks doesn't bother me, snaps a bit but keeps banging, considering that it also has all the other components

you have to make mounting patterns and renderings from that very high (so I imagine explosions, partial views etc.).
banal question: don't you have the solidworks rendering module? You'd avoid all that banging with rhino, which obviously assimilates of that size can't handle them.

 

[enri]

It is not a matter of axiemi, rhino does not even know that they are, as has been said, are the numerous separate surfaces that create heaviness in the viewport, often happens with iges, even with maya so much to make an example. if you avoid displaying all lines, with shaded view the problem is very limited. if you ever make sure you only have selected elements in shaded, and others in wireframe. better join the surfaces if you can.