Topic: Track
The MK&P layout is being built with extruded foam insulation sheets. The is no plywood underlayment so the usual methods for mounting switch machines won't work. I've devised a method which I haven't seen elsewhere but has proven simle and effective on the MK&P.
I'm using Micro Engineering code 55 N scale flextrack and Atlas code 55 switch machines. Tortoise switch machines also can be used with this method.The low profile of the Atlas machines, however, mean that you can place turnouts wherever you desire without concern about cross supports under the layout
For this you are going to need a sheet of plain styrene, heavy duty foam mounting tape, switch machine, and turnout.
The turnout is attached to the top side of the styrene using the foam mounting tape
The styrene has been cut size to accomodate both the turnout and the switch machine. A hole is pre-drilled in the sytrene below the turnout throwbar. Make sure you leave a gap in the foam tape below the throwbar so it doesn't come in contact with the throwbarThe switch machine is glued to the underside of the styrene with adhesive caulk. The switch wire passes through the hole in the styrene to attach to the throwbar of the turnout.
Foam is then excavated to accomodate the switchmachine wherever the turnout is to be installed. The whole turnout assembly is put into place.
The turnout is attached to the flextrack with railjoiners and this holds the turnout assembly in place. You may want to use a little adhesive around the edges of the styrene to keep it snug with the table top.
This same method can be used for more complex turnout arrangements.
For a crossover, the styrene is simply cut long enough to accomodate both turnouts as a single unit. This method allows you to put the whole assembly together at your workbench and then install it. This can be especially helpful for even more complicated turnout arrangements such as yard ladders.
These turnout assemblies are made at your workbench and can be put in place without crawling under your layout. It's also a simple matter to remove them for servicing or replacement.
