Model Railway Electrics - Point Motor Placement
Point Motor in a
(with and without extension arm)
(Hornby Standard Point Motor. PECO Point Motor
Drill, Philips Screwdriver.
This is one of the easiest ways to fit point
motors to your points.
Position the hole at the end of the housing arm
over the prong at the end of the points control arm. Change the point a few
times by hand to make sure that the housing is not restricting the movement
of the point. Once you are happy with its positioning mark its position and
that of the screw holes onto the board. You also need to mark where the
large centre holes are for the wires from the point motor to be fed through
Remove the housing and drill two pilot holes for
the fixing screws and one 6mm hole all the way through your baseboard for
the point motors wires to be thread through where you have marked. Then put
the housings base back into position and screw it down. At this stage its
best to check that the point still moves correctly (I found its best not to
screw the housing down to tight as this can restrict movement in some
cases). If all is still working well you can fit the point motor to the
housing base. Its best to thread the wires through first and then position
the point motor. You will need to make sure that the point motor arm is
fitted into the hole in the housings control arm. Last of all pop the
housings lamp hut cover on and wire it up to check it works.
Directly to the point
(Standard Hornby and PECO point motor)
Ruler, Drill, Jigsaw, pliers.
This is probably the best method for fitting
standard point motors as the point motor is fitted directly to the point
ensuring consistent and reliable operation.
First of all you need to mark the position of
the points control arm onto your layout. Then remove the point and using the
marking for the point control arm as a centre line mark a 40mm X 25mm square
(see above shot of the point). This is the area you will need to remove.
Before cutting make sure there is nothing beneath the board like wires or
the baseboard frame that you might cut through. The easiest way to remove
this area is to drill a hole through the board and use a jigsaw to cut out
the square. Check the hole with the point motor to make sure it fits and is
square to the point. If it is, fit the point motor to the bottom of the
point making sure the point motor wires are threaded through the hole in the
points control arm. Using pliers, carefully bend the prongs of the point
motors out to stop the point motor breaking free.
Place the point and the fitted motor onto the
layout so that the point motor fits in its hole. Connect up the track and
test its operation. You may need to adjust the hole if it effects the
positioning of the point.
Fit a piece of card between the point and the motor to help hide the motor
from view and to make it easy to ballast the point.
For an example of fitting point motors below your board read
article. Click Here
Fixed to the bottom of
(Standard Hornby PECO and SEEP point motor)
Drill and/or Jigsaw, Pliers, Screws and Screwdriver or Glue Gun,
If you are using the SEEP point motors you will have to use this method.
First of all you need to mark the position of
the points control arm onto your layout. Then remove the point and using a
drill or jigsaw make a hole in your board. This needs to be large enough to
allow the point motor arm to move fully.
Now put the point back into the correct position
making sure its control arm is over the hole you have made in the board. The
next step depends on the point motor you are using.
Hornby - You will need to attach the
extension arm onto the point motor. I would advise you use some glue as well
as crimping the brass connector, to ensure it stays together. Using pliers
bend over the prongs on the point motor (see picture above) to give you a
flat surface to either screw or glue the point motor to the board.
SEEP - This point motor needs no
modifying although you may wish to solder the wires to it as soldering under
the board is difficult.
PECO (PL-10E)- You will need to make sure
you buy the long arm version (PL-10E not PL-10) of the PECO point motor as
the short version comes with no extension. If you are not using the PECO
connectors you may wish to solder the wires to the point motor as soldering
under the board is difficult. Using pliers bend over the prongs on the point
motor (see picture above) to give you a flat surface to either screw or glue
the point motor to the board.
From under the board thread the point motors arm
through the hole in the points control arm.
Mark on the point motor arm just above where it
appears from the hole in the points control arm. Use this as a guide to cut
the point motors arm to length. If you plan to use glue remember to leave a
bit of extra length to take into account the thickness of the glue. I find
it best to have about 1mm extra to ensure you don't cut it too short.
Then refit the point motor ensuring the point
motor still has the full range of movement and the point motors arm is not
too long. Last of all secure the point motor to the bottom of the board
either by glue or screws.
Surface Mounted Point
Hornby Surface Mounted Point Motors
Designed to be positioned either side of any
Hornby point, this surface mounted point motor allows for the convenient
electrical operation of points. Can be used with the Hornby R8216 Digital
Point / Accessory decoder or for DC analogue operation, the R044 Lever
Switch. May not be suitable for use with points which are incorporated into
certain track configurations.
Peco Surface Mounted Point
(picture and information from
"chrisalddin" forum member)
Probably the most simplest method of automating
your points. Its just a matter of positioning the motor on your point,
pinning/gluing it to the board and drilling a hole to allow the wires to go
under the layout.
According to a forum member the wires cannot be
hidden without the use of scenery and it requires PECO track pins as the
holes are too small for Hornby track pins without modification.
61mm "long" 10mm "wide" (21mm if you count the part for the
pin holes) 10mm "High"
Please note that the wire colours
are not the same as Hornby with green (I believe) being the common.
Positioning / mounting
Fitting Point Motors directly beneath you points.