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Archie, Yes, the quarter point is a simplistic analysis of a uniform load, but is close enough to distributing the bending moments and works quite well with a ladder frame with cross members at a

I would dispute the use of quarter points. Theoretically this gives no moment mid span which increases the moments over the supports relative to shorter overhangs. It also increases the risk of

PS: Locating the legs ? of the module length in from each end results in the best distribution of bending forces on the module, as those structural engineers following this group will attest to.

Ed, Our modular group has been using “Ultra-light” modules for the past fifteen years. (See “ <http://trc.trains.com/Train%20Magazine%20Index.aspx?articleId=61785&view=ViewIssue&issueId=5187>

Absolutely brilliant change! Thank you! Christopher

While we explore this subject I'd like to point out that "small" is as seen by the beholder.? If I can take a layout on a bus in the city or check it as luggage on an airplane flight I might call it

Oops, I spoke too soon - trying to do too many things. Modules brought to a location to be assembled into a larger railroad have their own legs and standard size. N-Trak was first, and then came the

On October 3, 2018 at 12:12 PM dcw_rr <dcw_rr@... mailto:dcw_rr@... > wrote: Having dome a lot of work with Ntrak modules, I would say 30" by 60" or 3' x 4' are reasonable to carry

Art, Interestingly (at least to me) is that when Jim Fitzgerald and Ben Davis were first forming NTRAK in the early 1970's, their criteria for sizing the typical module was a requirement it had to fit

Having dome a lot of work with Ntrak modules, I would say 30" by 60" or 3' x 4' are reasonable to carry and will fit in almost any hatchback/minivan/SUV/crossover. This size reange gives plenty of

At this time most of the SLD related groups have been successfully transfered over to groups.io.? I am still waiting to get SLDFiles moved and some files from the original small layout design group

Not necessarily just large layouts. I built a 4x6 HO layout with a rather short yard ending under a plate girder highway bridge with a 4x6 inch mirror beneath. Didn't look like a train backing into

@Len I own the great book on John Allen's famous layout. He successfully applied several techniques to extend the view on a very large layout. This includes the use of mirrors. Some of these

I suspect that there are a number of designs with a double slip.? One is Box Street yard -?http://www.carendt.com/micro-layout-design-gallery/layouts-using-sector-plates/?and Wyter's Ed. Supplies

I never use DCC, I'm from the old school. This has 2 separate main lines, each connected to a single track section in turn via an s.p.d.t. switch so it can be used by either the inner or outer loop

Bill - I agree with you on what is a small layout.? To me a small layout is one you can pretty much painlessly move from home to an event site and back home again.? It should fit in a reasonable

Is this DCC? And, what is the plan for wiring the reverse loop? Just curious. Is this a schematic, or actually two concentric circles (more or less)? --Dave

I resized all the photos to 72ppi and a maximum dimension of 960 pixels before uploading to the album in the "Photos" section. This is a good viewable size and keeps file sizes small. Tom K.

Paul, The NMRA had a program called “Build A Dream” a couple of years ago where members built small layouts in public places as a demonstration and encouragement to enter the hobby. A couple of

Thanks for making the change. I look forward to uploading some track plans and photos. Tom K.