Erwin wrote:
Sorry to say: it is not a bug. Best thing to do is to get used to modelling precise and neat.
@ Dontknow Exactly as Erwin said. ARCHICAD did exactly what it is supposed to do. The walls did not align, and so the surfaces would not merge. The bug is on the human side.
Besides being sure that you accurately model by using shift constraints, snap lines, trace reference*, etc ... you can often model intersections more accurately by using commands if you're not sure of a snap point (bold vs light check mark).
In your example, select the two lower level walls and issue the Intersect command. Typically in the standard toolbar, I personally use it so often that I assign the shortcut "I" to it. Forces a clean "L" intersection. For "T" intersections, use the 'adjust' command (cmd-minus / ctrl-minus) to adjust a selected wall (or many walls) to the reference line of another.
Karl
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*Trace Reference footnote: if what you are tracing is not modeled correctly, then your new elements will be off as well. The wall surfaces in this case would merge, making you think all is OK - but in fact, the walls will not be at a 90 degree angle to one another. So of course, only use Trace Reference if you are modeling accurately.
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