On most real railways these days the vast array of colour light signals, point motors and general communications systems are controlled and linked by electrical cables. In the old days, (when I was a lad!) there used to be telegraph poles that carried telephone lines and most points and signals were controlled by mechanical linkages with a nearby signal box. In the modern World the various cables that now do these important functions are protected from damage by concrete cable trunking.
In the model World you can buy various kits to make this trunking and I have used the Wills version myself.
You get about 24 inches of trunking and some junction pieces.
When I bough two of these kits a couple of years ago they were about £4.50 each. Looking through a few sites today the cheapest I could see was £6.61! I need about 10 feet of trunking and possibly more which means that the cost is a minimum of £33 or £3.30 a foot. That is a lot and I got to thinking there must be a cheaper way - and there is!
Evergreen strip No 188 3.2mm x 4.8mm. You get six 15 inch strips (for £5.20) which equates to 7.5 feet length in total .
Add some 0.5mm square strip at 15pence for an 18 inch length (from DMG Electech) and for a total cost of £6.70 I can make 7.5 feet of trunking which works out at about 90pence a foot! Bargain! So how do I make it?
First off, to make the lip of the covers I glued the 0.5mm strip to the side of the Evergreen strip.
With that done I constructed this jig.
The jig allows me to slide the trunking through it and every 12mm, see the mark on the bottom of the jig, use a saw to cut a grove to simulate the joints between the individual covers.
With the saw cuts done I used some needle files to add some depth and relief. Once painted and weathered it should look a lot more defined.
It took me a couple of hours to sort out the method of making the trunking and constructing the jig but I think I could now do a 15 inch length in about 30 minutes so it is not that time consuming. There is also the possibility of some additional details but that is for another time as in the meanwhile I need to get some more of this DIY trunking made..