This group has been formed to discuss and maintain Free-mo standards for S-scale. The goal is to provide a forum for both S standard gauge Free-mo (Free-moS) and S narrow gauge (Free-moSn3).

The Sn2_Trains email list has evolved the HO Free-mo standards into an Sn2 standard. The primary differences being in wiring, roadbed and rail size. To learn more about the Sn2 standards go to:

In HO, Free-mo and RPM (railroad prototype modellers) tend to go hand an hand. Thus the goal of the HO Free-mo group is not only to define a modular standard, but to encourage high quality prototype inspired modelling and operation. It is the quality of modelling that truly separates HO Free-mo from HO-track modular layouts. Likewise, this group to encourage similar modelling for S-scale and Sn3. An objective of Free-moS is to separate itself from the typical S-Mod modelling.

Proper content for this list include discussions about: Free-moS modular standards, Application of standards to modules, techniques on assembling modules, planned Free-mo setups, articles about Free-mo, DCC and application to Free-mo, realistic scenery techniques, RPM modelling, adapting a prototype scene to Free-moS modules.

Significant Sn2 standard development will be reviewed on the Sn2_Trains email list.

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