Phil and Lin Spiegelhalter - FillinWelcome to one of our Railway Pages.
This page describes how an overlay map of the London Underground System can be created and mounted over the matching Traintrackr® Animated Display.
A NEW VERSION [v10] INCLUDING THE ELIZABETH LINE has been created by Paul Griffiths, and his latest PDF without LT Logo is available below [Version 11] courtesy of Paul:
PDF file of Overlay 11 for Traintrackr® Display including Elizabeth Line
The overlay shown below is the version I originally created for the earlier 'Large London' Traintrackr® and the overlay for that can still be downloaded here.
A3 Overlay Printout for the Large London PCB from Traintrackr®
Picture Frame Mounting using an A3 Commercial Frame with 3mm thick Acrylic glazing
Inspired by the Large London Animated Display created by Richard Hawthorn of Traintrackr®
|No Modification to the Large London PCB display is required.|
A matching USB lead can be bought for extra length or slimming down the USB plug cover at no risk to the original.
|No liability accepted for following, adopting or altering information given here. |
We have no connection with Traintrackr other than as a customer, and my thanks due to Richard of Traintackr® for providing the LED positions electronically.
As the London Underground Maps, fonts, and Logos are copyright TFL, the text used in my file is 5.2pt Homerton / Helvetica, and there is no representation of the Underground Logo.
The drawing was created in !Artworks vector drawing software originally written for use on Acorn RISC OS Systems, and still my daily preference.
RISC OS is freely downloadable from RiscOS Open Org, and can be run on many devices including a Raspberry Pi, PinebookPro, or under emulation on PC or Mac with Virtual Acorn.
|Download a PDF file to print the Overlay onto A3 at 100%|
Two versions are currently available for free-download from this website. Setting the Printer to its densest settings will benefit the fine print.
London Overlay with some Line Colour Station Names uses different colours for some stations to help differentiate them|
London Overlay with Monochrome Station Names uses Black for ALL station names for maximum visibility
The printout needs to be in contact with the LEDs - so that a crisp image is seen throough the paper. The slightest gap will result in a soft fuzzy image.
| Modifying a Commercial Frame to Fit the PCB - NO modification of the PCB required|
The following is based on my progression starting with a 'commercial' A3 frame bought 'online'.
I chose a Hampton Frames OSLOG A3 42 x 30 cm Natural Wood Effect Picture Poster Photo Frame Plexi (Non glass) OSLA3N
The frame-border is 20mm wide by 12mm deep, and the central rebate is a perfect fit for the A3 Printout: 297mm x 420mm.
The frame gives the appearance of being made from compressed sawdust, wrapped in paper, and some care is needed when cutting.
The backboard and glazing were retained by metal clips which can all be discarded...
The PCB is about 4mm higher than the A3 297mm, and therefore a 2mm wide rebate has to be cut in the top and bottom frames.
Working initially with the supplied 0.5mm Acrylic Sheet, the 2mm cutouts needed to be quite deep - leaving just 3.5mm of the frame
However, I soon discovered that it flexed too easily; separating from the Paper Print if the frame was angled forward.
I therefore ordered an A3 sheet of 3mm Acrylic [Acrylic being stiffer than Polycarbonate], which reduced the depth to be cut to about 2mm
This brought the inset PCB flush with the rear of the frame, so that a wooden strip glued to the bottom piece could act as a retainer.
Having previously cut deeper, I used Weathersealing foam tape to pad-out the gap, helping hold the PCB in place laterally too:
With the glazing and printout in place, the PCB was placed behind, and powered up to check the registration with the stations.
The 3mm weatherseal foam tape was also used around the PCB, and where there were no stations, to push the paper forward.
Horizontal Positioning of the PCB to Register with the Printout
The paper is simply located by the frame and the Weathersealing Foam tape so as to make changing it in the future easy.
The wooden strip across the bottom retains the PCB securely whilst allowing it to be positioned horizontally.
There should be approximately 10mm gaps either side of the PCB which reveal the paper print.
Once all other construction had been completed, strips of Birch were glued to the upright side frames; overlapping inwards to retain the glazing,
and to provide a firm support for hanging eyelets as the original backboard will not be re-used.
Two short removable sections will be added across the top to hold the PCB firmly in place.