import designs from autocad lt to catia v5

[7sc6tu]

Good evening, everyone.

I recently started using catia v5 r19, after working for years with autocad lt.
I immediately began to have a small problem with previous saved designs with autocad in dwg and dxf.
I explain better: how much these cat drawings opening a new body and a new sketch, but after doing this, I have to give all the constraints to the figure because otherwise the solid does not create and tells me that there are many points/elements open.
the operation of "rivincolare" and repassing the whole figure takes me away a lot of time and if it is possible I ask you some advice to avoid this laborious operation.

Thank you all.
steak

 

[tvi71it]

Bye.
So... it happened to me that I had to do something similar with files that came from autocad.
Usually how much amount a dwg or dxf being a 2d, you are created a catdrawing that contains the imported design.
After that in the catpart, if I want to create the 3d using as a base the design 2d I cop-neck the entities I need in the sketch from which I will create the partbody. if I want to do a job well done and then take advantage of the parameterization later to make changes, usually "recess" or remake the figure with all the necessary constraints and quotas; to make it quickly instead "to hit only the holes" to make sure that the sketch is closed and not bound anything or select everything and fix it there to avoid that then for some reason you move something.
catia is a very precise system, and unfortunately it often happens that importing entities from other systems there are holes and drains between the various entities.
for the union of surfaces, for example, larger joint tolerances can be specified in the union command, in order to overcome the problem of drainage. In the options, as it was for catia v4, I imagine there is a possibility to change the accuracy, but I always preferred not to change it ever and I do not think it is a good practice.

greetings
tvi71

 

[marcofa]

another problem are the double lines that often in autocad there are.
the problems to import are two.
discontinuities (open profiles)
overlaps or double lines

after importing the dxf and copied into a partbody, you get a sketch.
there will be a profile in view 3d. in this profile there will be black dots indicating overlaps and openings. return to autocad, correct and save in dxf then import back to catia after canceling the previous import.
It's a dog job.

Happy birthday
Mar

 

[fenice consulenze]

after importing the dxf and copied into a partbody, you get a sketch.
there will be a profile in view 3d. in this profile there will be black dots indicating overlaps and openings. return to autocad, correct and save in dxf then import back to catia after canceling the previous import.
It's a dog job.

Happy birthday
Mar

more simply use the command "close geometry" and physically eliminates all unnecessary geometries.

 

[falonef]

Good advice.
for constraints you can also use the practical function creation constraints automatically.
the quality of the result depends on the complexity of the geometry to be bound

 

[marcofa]

where is the command?
there is only close circle and complement
Mar

 

[ferrezio]

where is the command?
there is only close circle and complement
Mar

you have to use the command stumenti\an analysis of the sketch.

Hi.