Translations:Basic Attachment Tutorial/132/en

Sometimes it is difficult to work out how to align sketch or datum plane to generated face without actually attaching to it, which as noted above can be problematic. One solution is to attach to the generated geometry and then change the attachment to one of the coordinate planes. FreeCAD will retain the existing position and orientation intact but now reference it to stable planes, thus avoiding the topological renaming problems. However, the cost of doing this that the parametric linkage to the generated geometry is lost. If the underlying model is change, it will not all fall apart as often happens when attaching to generated geometry but attachment will not follow the changes and will need adjusting by repeating the temporary attachment trick.