Thanks all! Larry, you always say the nicest things. Mark always does too and Ken and so on.
My curb cut 3D print failed miserably. I just went down to check it (it finished last night) and all that's there is a forrest of supports with no parts attached. I'll have to trouble shoot what happened. Haven't had too many failures like this. For the supports to form so completely the parts must have detached late in the print. Won't know until I empty the vat.
I did a quick job when downstairs. I sawed off the Idaho Base supports that were extending past the perimeter and tried the whole deal in position. Fits pretty good.
I'll be trimming some of the haphazard plaster at the site perimeter. That STM was just slathered there years ago when I first build the city base. It will be much more refined now that I have a real base there.
This base will be adhered to the foam. I won't fasten down the hotel, but the base needs gluing since it's not sitting flush. The sidewalk's vertical alignment is good especially when I pressed down on the base. The curb end will be filled, sanded, engraved and painted.
If I want a curb cut on that inside curve, I probably will have to simply sand it into the Masonite, since I'm not so sure about drawing a curved curb cut on SketchUp.