Hi Sebastian,

> that's a useful Info – Is there a way to recreate Solid
> from Surfaces for STL creation?

Yes - the Edit > Join command will do this.

If you have individual surfaces that are touching each other along common edges, you can use the Join command to glue them together. And if you have all edges in your model joined to another edge, that makes it into a solid.

In order to be joined surfaces have to have edges that are close to one another though - within 0.005 units apart. So you need to do things like construct surfaces from some common curve structure, if you just kind of eyeball things and draw 2 different curves to use as guides for creating the surfaces they may not be close enough to each other.


If you are working on individual surfaces, you'll probably want to try to join things up more on the earlier side as you work on it and not do something like only create a bunch of surfaces and only join them together at the end, it's kind of too easy to miss a piece that way.

But if possible more of workflow where you work with a solid and then carve off pieces off it keeping it more a solid the whole time tends to be better. You can still work with surfaces in this kind of workflow as well, just use Edit > Separate to break off surfaces for some temporary work, and then use Edit > Join to glue them back into a solid again before going to a different step.

- Michael