Work was busy for past week, so not much work done on Erie caboose. I finished most of the major components on the under frame and began installing the roofs.
The frames are all self aligning, so construction is fairly easy. The beam flanges are cut from 0.020 styrene - one installed first with holes for tabbing, and then the second over the acrylic beams. I inserted styrene blocks at the truck attachment holes to accept screws.
Testing coupler height. You can see the M2 nuts that are contained by the flange under the car, and grating/porch floor to be install on top.