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# Revision history [back]

I would add some bisecting lines to the top and bottom surfaces (that are getting mangled) of the center corridor that you have there. So, redraw it, but before you intersect and match, draw additional bisections so that there are no "L" shaped surfaces. Do that for the top and bottom surfaces of the corridor. L shaped surfaces have caused problems in the past, i.e. non-convex.

I would add some bisecting lines to the top and bottom surfaces (that are getting mangled) of the center corridor that you have there. So, redraw it, but before you intersect and match, draw additional bisections so that there are no "L" shaped surfaces. surfaces remaining. Do that for the top and bottom surfaces of the corridor. L shaped surfaces have caused problems in the past, i.e. non-convex.

I would add some bisecting lines to the top and bottom surfaces (that are getting mangled) lost) of the center corridor that you have there. So, redraw it, but before you intersect and match, draw additional bisections so that there are no "L" shaped surfaces remaining. Do that for the top and bottom surfaces of the corridor. L shaped surfaces have caused problems in the past, i.e. non-convex.

I would add some bisecting lines to the top and bottom surfaces (that are getting lost) of the center corridor that you have there. So, redraw it, the corridor after deleting the first one, but before you intersect and match, draw additional bisections so that there are no "L" shaped surfaces remaining. Do Again, do that for the top and bottom surfaces of the corridor. L shaped surfaces have caused problems in the past, i.e. non-convex.

I would add some bisecting lines to the top and bottom surfaces (that are getting lost) of the center corridor that you have there. So, redraw the corridor after deleting the first one, but before you intersect and match, draw additional bisections so that there are no "L" shaped surfaces remaining. Again, do that for the top and bottom surfaces of the corridor. L shaped surfaces have caused problems in the past, past for me, i.e. non-convex.

I would add some bisecting lines to the top and bottom surfaces (that are getting lost) of the center corridor that you have there. So, redraw the corridor after deleting the first one, but before you intersect and match, activate the space by double-clicking on it, draw additional bisections on the top/bottom surfaces so that there are no "L" shaped surfaces remaining. Again, do that for the top and bottom surfaces of the corridor. L shaped surfaces have caused problems in the past for me, i.e. non-convex.

I would add some bisecting lines to the top and bottom surfaces (that are getting lost) of the center corridor that you have there. So, redraw the corridor after deleting the first one, but before you intersect and match, activate the space by double-clicking on it, it (note: this depends on if you used "New Space" button or "Create Spaces from Diagram" button; the former of which you don't need to activate the space because you are still "in" the space after you extrude the height), draw additional bisections on the top/bottom surfaces so that there are no "L" shaped surfaces remaining. L shaped surfaces have caused problems in the past for me, i.e. non-convex.