Thanks for the fast answer Dr. Sassi,
I share this easy example. In this case you can see a null with the original files. At the right side, there is a null with the same lines connected+deleted and also optimized (I’ve increased the tolerance value but the result was the same). As you can see the lines are not connected.
There is another issue importing CAD, at least if you are working in milimiters scale. When you import the file the null where are the CAD lines, named as objects.dwg, is in 0.1 factor in XYZ. This matters when you put the lines into an Extrude object because you have to multiply the extrussion factor by 10.
I’ve been working with both issues for several years and I’m used to them and I have my own workflow. But could be nice to find another solution.
Regards.