FREE-MO GROUP TECHNICAL STANDARDS (Revision 5)
Section 1: Concept
A modular, end-to-end (no continuous running) layout depicting as
accurately as possible North American Railroad practice during
the period beginning 1950 to end 1979 (30 years), situated in the
Mid-West to Western region.
The track plan is based on a typical single main, major branch line.
Modules, straight or curved, can depict either scenery only, or have
industrial sidings, preferably with a passing loop of minimum
length (see standards below).
Locos and rolling stock to be appropriate for:-
– the time period (1950 to 1979)
– the type of railroad (major branchline)
– geographical area (appropriate railroads)
– operating sessions will be conducted using the car card/
Section 2: Standards
Modules: External ends: Double laser-cut end plates, 500mm
wide, using the Freemo Valley
Modules bolted together using 10mm
bolts, large washers and nuts.
NB. Ensure access to bolt holes on
inside of module.
Internal ends: free
Side panel height: 130mm at the end plate. Free in between end plates.
Height: Legs and module to be constructed to
achieve 1200mm from floor to top
Legs: Dimensions: 25.4 x 25.4mm square tubing
Wall thickness 1.6mm
Foot Plastic insert into leg, 10mm bolt or
Side Panels and Legs: To be painted matt black.
Car Card Tray: To be fitted to each module group
Velcro Tape: To be glued on side panel near any
UP5 to secure throttle when not
hand held. (hook tape glued to
Curved Modules: Intended for ‘mainline track’ (i.e. not
part of a module group) to be
designed so they can be used
Track: Manufacturer: Peco code 83
Main line points: Peco Number 6
Yard points: Peco Number 6 or 5
Passing sidings (if any) 2150mm long
Industrial Sidings To be level
Rail Colour Tamiya Flat Brown (XF10)
Road bed: 5mm closed cell foam/rubber (PE 60 sponge or cork) width +/- 40
Ballast: Sharp clean granules (minus 0,850
mm to 0,650mm sieve size.
Track ends: Flush with module end
Last 2 to 4 sleepers to be soldered
(PC board or flat head screws)
On modules not part of a ‘module
group’ track to be:-
– centred on the end plate
– at right angle to the
– straight for at least
100mm from the
Replace rubber/cork ballast
for the last 100mm with wood (pine)
5mm thick & 40mm wide
Minimum Radii Mainline 1200mm
Gradients 2% Maximum
Electrical: Control: Digitrax DCS 100 (one unit),
one transformer (15 to 16 volt,
5 amps (75-80 VA)
Throttles: Digitrax (DT400, DT402 or UT4)
Control points: Minimum of two UP5 Digitrax control panels per group of modules with sidings
(one on each side connected by
loco net cable)
Power Distribution: Busbar wire, +/- 1,0 square mm.
Power Connectors: Banana plugs, 2 female plugs at each
end, to be fixed to the end plates.
Two jumper wires with male plugs at
Connect inside track banana plugs to
inside track, and outside track
banana plugs to outside track.
Loconet Cable: Connect each UP5. Each member
is responsible for the loconet cable
for his module/module group as well
as the mainline track modules built
Woodland Scenics ground foam
Dry grassland 2 x T43
1 x T44
2 x T50
Earth sifted garden soil
Sand sifted sand
Earth colour brown/grey
Trains: Loco(s) Appropriate for the period, type of
railroad, geographical area, diesel or
Rolling stock: Freight cars, preferably 40 or 50ft
long. 60ft and longer cars to be
avoided. Each train to have a
caboose that matches the loco..
Couplers: Kadee number 5 (strongly recommended), or Kadee-compatible
Finance: Joining fee R300 (for Digitrax system)
Membership fee R120 per year
General Comments: Required future modules – yards at both ends (for a ‘U’ type
– curves (preferably 30 or 15
– straights to be gently curved
Section 3: Operation Refer to operations instructions