Showing posts with label thomas. Show all posts
Showing posts with label thomas. Show all posts

Monday, 31 December 2012

Train Set Season

You may remember a couple of years ago I built a train-set for my son. He's gained a couple of locos and some wagons, but for a recent birthday we gave him some more track, and also another train set (a second-hand bargain from a show) for Christmas. This means a bit of work adding a second circuit to the board, but this is the season for train sets.

First job was to remove the existing track. It was laid in the garage in November 2010 when the temperature was well below zero, as a result when brought in the house the rails expanded, although the track didn't move the curves had a negative camber! When released the diameter of the oval expanded by about a quarter of an inch. I then had to plane off the no-more-nails type glue, as it hand't worked well, this time I stuck to track pins. Hint: Hornby pins are larger than PECO, but strong enough to go into plywood.

 
The job was made more complex because of the folding board, this means the track needs to be cut at the board joint and soldered to small brass screw heads to ensure secure alignment. Also every rail needs a wire to bridge the gap, laid above the board because of the double-skin board design.

 

Further complications are that Hornby and PECO have different geometry for their curved points (I was using various points bought cheap at shows or off ebay), and the size of the board didn't allow two standard straights between curve and board joint. This restricted point placement, and meant I couldn't use the power feed tracks - I just wired back to a terminal block connector for easy connection of controllers.

 
This shows the final layout, as you can see I had allowed for the extra tracks when I painted the board, and there was space for the outer platform and siding. I Think I got the maximum number of tracks on for maximum fun! All points are within reach of one side of the board too. With two controllers I can now play with my son!
Posted by Picasa

Tuesday, 7 December 2010

Train Set - Part 2

Although I measured out for a double track, for now I am sticking with the basic oval and siding that comes with the Thomas set. After all, for now Thomas will be the only train! The point is I will be able to add an extra track, and more sidings, later on.

First I painted the track-bed grey with a couple of tester pots from the DIY store (allowing for future track). The track was stuck down with No More Nails (I thought it might be stronger than PVA but it didn't dry clear, PVA would have been better) and pinned, althoug the track pins were reluctant to go through the ply! At the board edges I used a short length of nickel-silver flexi-track, where the rails crossed the joint I put in brass screws both sides, and then soldered the rails to them, then cut the rails. This should make the track robust at the edge and ensure precise alignment, even though it is cosmetically lacking! Each rail then had a wire soldered to it, running over the hinge post to the rail on the other side, ensuring electrical continuity. The photos should make this clear.



The Hornby controller was screwed to the board in one corner and connected up. In the siding I added a re-railer ramp with uncoupler, I'm surprised Hornby don't include these in the train set. I know they are not pretty but for a child they are very useful! A set of Hornby platforms were cut to fit the board joint and the length of the straight and stuck down with a glue gun. I used the small station building as although I have the larger one, it fouls the other end of the platform when the board is folded! I also found a signal box, this and the station came from my parent's loft ... Finally more tester-pots were used to paint the rest of the board a rather un-convincing grass green, I threw some handfuls of scatter onto the wet paint too. Frankly it hasn't worked that well but it is better than bare ply, and this is just a train set! It can all be spruced up over time.

The real test came today, my Son's 4th Birthday. Even with lots of other presents including Playmobil (which needed a surprising amount of assembly!) and Firman Sam toys (which he is mad about), he was really excited when he opened the big parcel of the train set! Then I produced the board and he set to playing trains. In fact I have spent a significant part of the day kneeling on the floor playing with him - apparently I am the Fat Controller! Clearly it has been a big hit.

So does the board work? Well yes, although I really should get some handles to make moving it about easier. As you can see though - it does fit under the bed as intended! It is really easy to unfold and plug the controller in, so can be up and running in a couple of minutes, so mission accomplished!
Posted by Picasa

Monday, 15 November 2010

Train Set - Part 1

With my little boy's 4th birthday coming up we thought it would be nice to get him a train set; a Hornbly Thomas set has been obtained from the bay of e's. However it won't last long being laid on the floor, nor is it likely to get played with often if it is a lot of trouble to set up. Really the track needs to be laid on a board which can be got out when required, but we have no where to store a large enough board.

The plan I came up with is for a folding board that should fit under his bed; it is 5'6" by 4' and folded it is 2'9" by 4' by about 9" deep. The board has to be strong in order to hinge, but not too heavy. I decided to save weight by using a double-skinned design of 34mm x 18mm timber (sold for door jambs) covered in 3mm ply. Yes, 3mm ... it needs lots of bracing (as shown, about 10' of timber was used) but even so the total thickness of ply is half that traditionally used. (Hint, get ply from a local timber merchant, they'll cut it to size which saved me the bother, and meant I could fit it in the car!)

It's not exactly light, but for the size of board it is manageable, and both much lighter and stronger than traditional board designs. As the frame has ply top and bottom it is incredibly strong - it will not twist! The concern was that the 3mm ply may not be thick enough to be leaned on, hence the extra supporting blocks seen in the first photo. In fact I can kneel on the board so it should be fine! A 6mm top would be stronger but of course, heavier ...

The hinges are of the paste-table type from a local hardware store, attached to uprights in the corners of the board, other uprights act as stops. The outer edge of the board is faced in 5mm foamed PVC, which was free from the marketing department at work, offcuts of advertising boards! This fascia reinforces the hinges and stops. The pictures should make it clear.




The last picture shows what could be fitted onto the board. The train set came with (surprisingly) 3rd radius curves, a second radius oval can be fitted inside. The outer oval is positioned to allow a platform to fit on the outside on one side of the board, with a siding outside the oval on the other, obviously plenty of space inside for sidings. There is space for a short straight between the end curve and a length of flexi-track over the board joint, a 6' long board would allow a double-straight (or two points) either side of the joint but that would be too big to fit under the bed. At one end the fascia is raised to allow for a tunnel.
Posted by Picasa