Back in March I was busy buying secondhand buildings on eBay to fill out the center of the layout. I also bought a few brand new (old stock) kits from Heljan and Gaugemaster (Kestrel) to satisfy my need to get this layout moving forward.
Heljan Meat Packing Plant - N673
I don't know anything about Heljan other than Sam's Trains on YouTube regularly gives them hell about their OO locomotives. The kit came in a slightly squashed box with a few sprues inside.
Initial assembly was relatively easy once you have worked out that the letters on the instructions relate to the the letters on the parts which must join together. The basic structure went together very easily but the configuration of the highest roof is a bit odd and leaves an unsightly gap. Furthermore, my intention was to light this top most area and it is essentially sealed off once you add the roof.Painting with Jason Jensen
I'm a big fan of the work of YouTuber Jason Jensen, his densely packed urban layouts in OO and N Gauge are just a sight to behold. However, I'm no ex comicbook artist with all those thousands of hours worth of drawing and inking to fall back on. The beauty of Jason's channel is that he shows you how you can easily add character and weathering to a structure just with some paint and a bit of sponge.
The building was primed in black and given a white zenithal highlight. This is a fancy way of saying I sprayed the building with white paint from above to highlight the bits which would be hit by the sun at it's zenith.
I then proceeded to sponge on a few different shades of brown to simulate the varied coulour of the brickwork. There's no secret sauce to this recipe and you can pretty much use whatever paints you have at your disposal. Just remember to dab on less and less as you go from dark to light.
I did not bother to follow the spackle mortar step as I was really happy with how this turned out and I have no idea what spackle is 🤣.All the woodwork, doors and trim came seperate on the sprue so this was painted before assembly with a quick zenithal prime and then a base coat of two of my least used D&D acrylics from a Nolzur's starter set by Gale Force Nine. These were specifically Putrid Slime and Xanathar Blue. Honestly these are crap paints and I do not recommend that you buy them, but they do produce a nice sea green colour when used together.
Palethorpes Signage
I have 3 Lima Siphon-G wagons in my fleet, one of which is branded with Palethorpes Sausages. I naturally thought that this meat packing plant should be a Palethorpes factory serving the local community of Upper Carrom. Grabbing some suitable images from the internet and resizing for printing using GIMP was a trivial exercise.
I followed Jason Jensen's weathered sign technique. This involves sanding the back of your printed paper sign until it becomes almost transparent. I cannot believe that I spent half an hour of my Saturday morning carefully sanding paper to make it even more paper thin. We do what we must in the pursuit of happiness.
This was then stippled onto the textured brick work with diluted white glue and I have to say I was impressed at how well this technique works. You can see the ghosted image of the underlying brickwork on the lighter coloured backgrounds and it is quite convincing. Now that I know what I am doing, I am going to be braver and go for even thinner more realistic signs in the future.
Lighting the model and adding a circuit board
My intention with the majority of the buildings on the layout is for them to be removable so that I can work on them off the layout. This lends itself to the "plug and play" mentality where each building has a single connection to 5V power and is then distributed to each LED from a circuit board.
This model has a sum total of 6 lights. Three are 5mm bright white LEDs for the building lights and then there are 3 bright white streetlights. To be honest I have long since lost the packaging that the lights came in and it was all Chinese to me as it came from Aliexpress.
Following the excellent tutorial on How to Wire Multiple LEDs: Series vs Parallel by Rachel de Barros I built a small circuit board to accommodate all the lights.
The circuit diagram is as follows
This worked wonderfully for about 30 minutes of continuous use until one of the street lights failed, then another and then the third until this went pop but as I had encased it in photosensitive resin it smoldered for a while and stank!!. Why did this happen?
Because I am a dumbass!!
The eagle eyed of you will have spotted that I had wired the positive leg of the Street light LEDs in at points A, B and C and then soldered all the building lights in at D. This completely by-passed all the resistors and sent each one 5V from supply.
I initially blamed Chinese fake LEDs, but no wonder they failed, nothing can withstand that much power and survive.
It is only by writing this blog that I spent the time to dissect the circuit and recording what I actually did and compared it to the circuit diagram (what I thought I'd done) that I discovered my catastrophic mistake. This is called learning through failure boys and girls and is the best type of learning their is.
However, I do have photographic evidence that, however briefly, it did work.