file conversion in stl format from scan 3d

[bruno85]

Hello everyone,
are struggling with a file obtained from a 3d scan. the file obtained from scanning, the cloud of points, was transformed into mesh, cleaned, and converted into stl to be open in swx (I know that I could import even the cloud of points, but the mail-made software for postprocessing of cloud point is better). my question is: how can I create a solid from the virtual geometry of the stl?

thanks to all those who will dedicate some time to my question!

 

[peloritano]

I have your own problem.... it looks like the best solution is to use rhino

 

[maxopus]

You must give yourself to reverse , there is no direct and qualitative conversion acceptable from stl to solid.
stl or vrml or obj files are rows consisting of triangles and if you tend to export it to iges you get out of a myriad of unmanageable triangles.
I use pro/e and also rhino has the specific functions for this.
Obviously when the game gets tough (stl with millions of triangles) and the geometries are very heavy to manage ... only the best ones make it.

 

[SolidUser]

Hello everyone,
are struggling with a file obtained from a 3d scan. the file obtained from scanning, the cloud of points, was transformed into mesh, cleaned, and converted into stl to be open in swx (I know that I could import even the cloud of points, but the mail-made software for postprocessing of cloud point is better). my question is: how can I create a solid from the virtual geometry of the stl?

thanks to all those who will dedicate some time to my question!

here. c'è la soluzione.

 

[bruno85]

You must give yourself to reverse , there is no direct and qualitative conversion acceptable from stl to solid.
stl or vrml or obj files are rows consisting of triangles and if you tend to export it to iges you get out of a myriad of unmanageable triangles.
I use pro/e and also rhino has the specific functions for this.
Obviously when the game gets tough (stl with millions of triangles) and the geometries are very heavy to manage ... only the best ones make it.

ùeh I have to reconstruct a scannerization of a complete engine, which I can bring up to 500,000 triangles (less lost too much in quality). in sw is there not even the possibility of being able to exploit the mesh of the stl to draw a cad, or curves, or surfaces?

I would also be content with just a simplified cad with encumbrance, dwelling in particular in areas that interest me most, but I must be able to draw on the file imported from scanning!

 

[mariuss.r]

ùeh I have to reconstruct a scannerization of a complete engine, which I can bring up to 500,000 triangles (less lost too much in quality). in sw is there not even the possibility of being able to exploit the mesh of the stl to draw a cad, or curves, or surfaces?

I would also be content with just a simplified cad with encumbrance, dwelling in particular in areas that interest me most, but I must be able to draw on the file imported from scanning!

rhino3d...download the trial, allows up to 25 saves!

you can draw curves and splines directly on the triangles, for projection or using the snaps on the edges of the triangles themselves.

 

[maxopus]

here. c'è la soluzione.

I'm skeptical, I'd like to see the results...
if it were so easy there would be no need to reverse and all dedicated programs (geomagic, polyworks, rapidform, catia, pro/e, nx) could throw in the bin its reverse modules.

there are always problems of various kinds:

• in detecting mechanical parts, you will always find dimensional and shape errors;
• scanners do not properly detect live edges, it is the man who corrects them;
• scanners do not detect the optically hidden areas, it is the man who provides with his work to interpret the missing data.

concluding, according to my humble opinion, there is no reverse "automatic" ...

 

[bruno85]

there are always problems of various kinds:

• in detecting mechanical parts, you will always find dimensional and shape errors;
• scanners do not properly detect live edges, it is the man who corrects them;
• scanners do not detect the optically hidden areas, it is the man who provides with his work to interpret the missing data.

concluding, according to my humble opinion, there is no reverse "automatic" ...

I totally agree.
The only thing I'm looking for is a way to create a solid to work on.
with the slate in swx I can't do anything at all. I would rather be able to work by creating from the geometry of the slate, slowly, a solid.

 

[maxopus]

I totally agree.
The only thing I'm looking for is a way to create a solid to work on.
with the slate in swx I can't do anything at all. I would rather be able to work by creating from the geometry of the slate, slowly, a solid.

It's part of my job, building geometries based on scans.
to do this you must have a modeler with the specific functions of reverse.
there is rhino, which is a very cheap nurbs modeler but, does not have the classic functions of mechanical cad.
then there are reverse programs used for scans, such as geomagic, rapidform and polyworks. also these are nurbs modelers but, much more powerful than rhino for holding complex files.
Finally there are high-end cads, creo parametric (pro/e) , catia and nx with specific modules for reverse.

for the rest you could try with what suggested soliduser, maybe it works and solves the problem.

 

[bruno85]

It's part of my job, building geometries based on scans.
to do this you must have a modeler with the specific functions of reverse.
there is rhino, which is a very cheap nurbs modeler but, does not have the classic functions of mechanical cad.
then there are reverse programs used for scans, such as geomagic, rapidform and polyworks. also these are nurbs modelers but, much more powerful than rhino for holding complex files.
Finally there are high-end cads, creo parametric (pro/e) , catia and nx with specific modules for reverse.

for the rest you could try with what suggested soliduser, maybe it works and solves the problem.

I could actually use geomagic to try to create a solid. but then I would save it anyway in stl, so I would change the geometry, but cmq I could not get a modified solid with swx... or am I wrong?

 

[maxopus]

I could actually use geomagic to try to create a solid. but then I would save it anyway in stl, so I would change the geometry, but cmq I could not get a modified solid with swx... or am I wrong?

no, with geomagic studio you can get the surfaces (not with a simple export but, getting them with the specific functions) and export them to iges.

 

[SolidUser]

I'm skeptical, I'd like to see the results...
if it were so easy there would be no need to reverse and all dedicated programs (geomagic, polyworks, rapidform, catia, pro/e, nx) could throw in the bin its reverse modules.

there are always problems of various kinds:

• in detecting mechanical parts, you will always find dimensional and shape errors;
• scanners do not properly detect live edges, it is the man who corrects them;
• scanners do not detect the optically hidden areas, it is the man who provides with his work to interpret the missing data.

concluding, according to my humble opinion, there is no reverse "automatic" ...

matt lombard doesn't write much to write.
the article that reports is clear and descriptive of the commands to be implemented to obtain the results shown in the images.
It has not discussed more or less than it is evident from its words and that is how to transform a stl object into nurbs.
the level obtained is more than sufficient for the purpose of which it was sought to achieve.

 

[SolidUser]

I totally agree.
The only thing I'm looking for is a way to create a solid to work on.
with the slate in swx I can't do anything at all. I would rather be able to work by creating from the geometry of the slate, slowly, a solid.

You didn't read the article then.
I wake you up from your torpor and laziness.
1) scanto3d in solidworks additions
2) plug-in tselements for solidworks

 

[bruno85]

You didn't read the article then.
I wake you up from your torpor and laziness.
1) scanto3d in solidworks additions
2) plug-in tselements for solidworks

in the link did not talk about using tspline for rhino?
I tried to follow the link tips, but it blocks me at the first command because geometry is too complex... That's why I was trying to see another way to do what I need.

I tried to see tselements for sw, but I don't understand how to use it.