The wheels on the Railroad go Up and Down

I'm 3/4 of the way through my project of building retractable casters for the two mobile sections of my four-section layout. They've been installed on one section; when the last set is finished, they'll be installed on the other section.

I'm really glad I went with this, too. On the section that now has retractable casters, I've reattached the leveling feet and adjusted them so the top is now truly level. The difference in the extensions of the individual feet is remarkable. Just shows how uneven my basement floor really is. If I had tried to just manage with fixed casters, it would have driven me nuts at how uneven the sections were when mating up with each other.