Hi Guilherme, there is a command under Construct > Curve > Isect that will generate curves or points where 2 objects intersect each other, it could work for that.

Select your 2 objects, run Construct > Curve > Isect and then see if there was anything output or not, if it did generate stuff it will be selected and you should see something like "3 curves" or whatever in the properties panel in the upper right area of the main window.

There are a few kinds of things that won't detect, like it won't detect if 2 solids touch each other only at one single point like 2 boxes touching only at their corners and no other overlap. But other kinds of overlap it should generate curves surrounding the overlap and it also will detect single point touching when intersecting curves.


Otherwise if you have 2 individual surfaces alongside one another you can also see if they are touching by using Edit > Join and see if they join together or not - things must be with a pretty close tolerance of touching in order for join to glue them together.

- Michael