A new layout in the making!
This page is to be updated as work progresses.
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Basic track plan.
The first steps was to obtain suitable timber (Planed Square Edge - PSE) and sheet boarding for the tops. For this project I am trying 11mm thick OSB3 board (Orientated Strand Board). Underside outer framing will be of 69mm x 18mm PSE and cross bracing at 300mm intervals made of 44 x 21mm PSE. These will before fitting, have three 15mm dia. holes drilled in them nearer to their top edges. These holes will allow for later wiring runs. The deeper outer framing will help protect the point motors and other underside electronic items and give good rigity and strength, while the smaller cross bracing timbers, when installed narrow edge to baseboard, give strength to the top but reduce overall weight. Fold up self contained legs will be added too.
Fold up legs are constructed from 44 x 21mm PSE and braced apart by two horizontal timber braces which are screwed and glued to the legs. Each leg has an adjustable foot and 200mm Tee hinges are used to act as the pivots. Each leg is braced in the open position by a diagonal timber strut with Back Flap hinges at each end. See details below
To allow the fold up legs to be stored within the framing of each baseboard yet still allow the leg to be firmly locked in the down position 32mm Back Flap hinges are used at both ends of the strut. Each hinge has its original pivot pin removed and discarded and a split pin on a short length of chain is used to retain the struts firmly and securely. These make folding up the legs very quick and simple.
I have so far constructed five of the seven baseboards - Nos 3, 4, 5, 6 & 7 are ready for a coat of varnish or dilute PVA to seal them and then once dry I need to make room for the last two boards in the garage by moving them all forwards.
Baseboard top for board number 2 cut to allow for the upper level/raised section and the turn towards board 1. Next is to make the framing. But that will have to wait for a day or so now!
All seven baseboards have now been constructed and assembled to form the layouts rectangular shape. All surfaces have been sanded and then given a coat of dilute PVA adhesive to act as a general sealant. Next track laying commences!
Next item to be tackled was the electrical connections baseboard to baseboard. For this I have opted for two different sized 'Aviation' plugs and sockets in four way pin/socket per connector. I have chosen 16mm and 20mm diameter connectors, the larger being used for the DCC pair of feeds and 12volt DC power for all the electronic boards and Servo motor drives, while the smaller is used for CBUS data lines and two spare pins. By using two of differing sizes there is no chance of accidental cross connection occurring. The Aviation sockets have a threaded protrusion on their front onto which the plugs securing ring locks the plug tightly onto the socket. The problem being if these sockets are mounted onto the front surface of the support framing timbers they extend out beyond the front edge and are then likely to be knocked or damaged during any later transportation of the layout. So I decided to drill two holes for each socket and also allow finger room too for tightening and removal of the plugs. A hole of 32mm diameter was drilled for the 16mm socket while the 20mm socket has a 45mm diameter hole. The sockets were mounted onto 6mm thick ply and that is bolted to the rear of the bracing timbers
Now commences the track laying! I have a lot of Peco Streamline code 100 points taken up from the former 'Elmswood' layout and some sections of flexible track too, plus a new box of 25 lengths of SL-100 track. So this has to the choice, as it would be wasteful to go over to Code 75 profile track. In fact I've not had any issues with Code 100 looking too large, especially once its rail sides are painted rusty colour and the track ballasted.
The first frames and tops are constructed