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Re: Warping; and security

Posted: Mon Apr 15, 2013 10:26 am
by BrianMoore
130344 wrote:My layout's built around three sides of a double garage, and I've devised an "ingenious" (for which read "Heath Robinson") method of closing the fourth side gap and allowing trains to go "off stage" in each direction – see diagram attached. (The diagram is much neater than the construction, believe me.)

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E&O_gate by taghairm7, on Flickr

I have two questions that I'd like help with:

1. The traverser I've made (from MDF) has warped badly (vertically), to the point where it's unusable. I used MDF because I thought it might be more dimensionally stable in my very cold, unheated double garage. Would I fare better using another material, and if so, would I also be better off if I were to varnish it – would this be likely to prevent repeated warping? Or is there a better suggestion out there?

2. For security reasons (the garage is detached from the house) I have to install and remove the DCC system command station every time I want to use the layout. For the same reason, I also take any locomotives out to the garage before, and back inside after, a session (this also prevents them rusting to bits). Is there a good, practical and if possible lightweight and non-bulky way to effect this for the locos – eg would cassettes be a reasonable option, or some other method that I can't think of? I want to avoid handling the locos if possible, as I plan to weather them. And I have a flight of steps to negotiate between garage and house.

I'm grateful for any advice anyone might have the time to give.

Jock
1. Don't use MDF again, unless it's braced everywhere on a frame. Buy good-quality wood/plywood, and let it acclimatise to the environment, and then build your new traverser in the garage.

2. Both Mike Ruby and I have made stock-carrying cases from toolboxes like the one here: http://www.charliesdirect.co.uk/product ... h-tool-box
It's easy to make up trays that can carry nine or ten items of stock in each layer, with strips of foam to protect the stock. Mine is double-decked and his is triple. Light enough to carry one box in each hand, and takes just a few minutes to pack and unpack. We use ours to bring locos and some stock to the club every month, without having to carry them in their original boxes.

Re: Warping; and security

Posted: Thu Apr 18, 2013 11:24 am
by Mike_R
My DCC system is easily carried, it has to travel to modular meetings.

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As Brian says my locos and stock travel in converted tool boxes, the loco trays have wider slots (4 wide, stock 5 wide) with low level side supports to stop mirrors sun shades etc. being knocked off. To help inserting and removing locos I sling them in a sheet of polythene, that also protects the paint from damage. Foam blocks stop them sliding along the slots.

I would seal all wood used in an unheated building (I seal the boards that stay in the house). MDF will swell almost double if exposed to water, other problems with MDF are potentially harmful dust, the weight of it and the hardness for driving track nails etc. For reasonable costs look at Oriented Strand Board (OSB). For portable layouts I prefer ply or ply and foam. We keep sealed ply boards on an unheated store room, and I used to keep them in my trailer.
Cheaper than varnish is 50% diluted PVA or cheap paint.

Re: Warping; and security

Posted: Fri Apr 19, 2013 11:28 am
by Mike_R
PVA can be removed by soaking in water, but you can buy water resistant PVA. The main reason to use it, is to seal against humidity not liquid water and it seems to do this well.