Wednesday, October 27, 2010

Mid-week Report - October 27, 2010

I get to work from home usually once a week at my current job and this allows me to do some things layout  related during normal times of commuting or lunch finding. Sometimes that's cutting wood, defining the layout plan, or just measuring and visualizing what will go where and how things may flow. The one thing I've been struggling with a little was how I designed the benchwork for the peninsulas, and more specifically, what would hold them up. I had studied the free standing supports on layouts like the CSX Dixie Line and CSX Shenandoah Division. I had looked at other double deck layouts and saw table like structures with essentially stud walls down the middle and large L-girders taking up space under the second deck. I decided I would go somewhere in between. The first thing I needed to do was come up with a scheme for the legs and connecting wood. I decided I would use L-girders on the outside of the legs, with the flanges layout on top of the legs. Instead of using a traditional brace at the top of a pair of legs, I'm also using and L-girder to give more rigidity to the legs and provide a stronger base for the supports for the 2nd level and valence. I did a prototype of the legs to be created on my lunch hour today. Here's how it turned out:
First Leg Assembly
Even though the L-girder at the top is pretty rigid, the leg assembly itself was pretty unstable. Adding one cross brace took care of this problem, but I also figured if one was good, two would be better. Overall I'm pleased with the way it turned out, much more than the brackets I built. It took me about a half-hour to assemble and with 12 more to build, I think I could do it in an hour or so, now that I've built one. The other good thing is that I had previously made 3 L-girder assemblies and can now use them for the tops of the legs without need to build any more. I'm also hoping to pick up some pretty cheap cabinet grade plywood in the next day or two and if I can get them, progress is really going to be made on the benchwork!

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Welcome to the my Conrail Model Railroad site. I will document the research, design, construction and operations of my N-scale model railroad based on Conrail's Ft. Wayne Line in Ohio.

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