No wrong...they are a feature called a datum plane that simply do not exist in your version of FreeCAD.alex::freecad wrote:as had been said above:
external seems to work on surfaces of SOLIDS.
this leads me to the conlusion that the planes in the bearing holder tutorial must be solids -> not planes but thin cubes with nonzero thickness - right?
Look honestly I would have worked this out in the first post if you had
1)posted your Help about FreeCAD in the first post
2)posted a link to which tutorials you were talking about.
Those tutorials WILL NOT WORK for you in your version of FreeCAD. You need the code in the Assembly branch which is in far to much of an experimental state to use at this time.
Just do a different tutorial.
You are referring to this one and its Part 2, in the FreeCAD wiki, I assume?
http://freecadweb.org/wiki/index.php?ti ... Tutorial_I
The tutorial was originally written to show how to use Datum planes, a new feature, that will one day end up in FreeCAD. At the time it was written a lot of us thought that the Assembly branch code would be merged a lot sooner. But it has been delayed for good reasons unfortunately.
Jim