The interiors are just simple boxes that slide in from the rear, then the rear wall is secured with screws. I have some better photos of the interiors that I did for the stone bank building, starting here:
I'm finally making progress on this again, after taking a short break.
About a year ago I found a sheet of 13mm Sintra in the cutoff bin at a local plastics dealer, and I've been holding onto it ever since. I decided to use this to make the arched walls of the passenger waiting area. I don't know if it's because this stuff was old, or what, but it was quite a bit harder than the 6mm stuff I've been using, and was kind of a pain to work with. I had to use a jigsaw to cut it. I also found it more difficult to scribe. It might have been easier if I'd just laminated two sheets of 6mm Sintra together, to get the required thickness. Anyway...
After cutting it out, I taped the plugs from the arches in place temporarily, to hold a pushpin marking the center of the arch. Then I scribed the stones around the arch, using a small metal ruler as a guide:
When I'd finished scribing the stones on the face of the wall, I used a special tool to continue the mortar lines around the corners onto the edges of the arches. This was just an X-Acto knife, with the edge of the blade ground flat:
Here is the exterior side of the wall. It is complete except for some details that will be added after assembly. As you can see, I have changed the shape of the wall's top edge from the original design:
Here's the interior side of the same wall. When I shot this photo, I still had to scribe a few more lines near the top. On the left end, there was no need to include all the scribing since that is where the adjoining wall will be glued to this one:
That's all for now. I still have two more walls to do for this part of the depot.