My modelling has been a little sparse lately but on Saturday I went to TINGS to see if I could get some inspiration. Overall the show this year was okay but could've been better. They need more chairs around the tables at the downstairs tea/coffee bar. There's plenty of traders but some N/2mm niches are not catered for and modelling materials (like paint, plasticard and tools) were very sparse. There were some good layouts like 'Loch Tat', 'Low Yard Junction', 'Dentdale', 'Sutton St Anns', and 'Marx Engels Platz' but there are too many small roundy-roundy train set types set in Metcalfeshire. However, the best thing is the opportunity to meet-up and chat with many one doesn't often see and meet new enthusiasts.
I mentioned earlier in this thread that ideally I'd like to see a decent LT Leyland Titan (B15) bus in N gauge - either RTP or kit. They were pretty commonplace throughout London for the era I'm looking to model. And while at TINGS I picked up an N gauge scale 3D printed Titan by N-Train. It's a very basic model but does include an lower and upper deck interior and size is pretty much spot on scale-wise.
Unfortunately it's printed in that white rough 'dentine/concrete' type acrylic and is going to need a lot of work to smooth and finish to an acceptable standard (although the wheels are printed in a finer detail material - possible FUD). And the more I look at the model the more I realise there is lots to do. It has been designed/produced very boxy which is fair enough as the bus is very cuboid in shape apart from the upper windows that slope in at an angle. But everything is too flat and square: the windows don't seem to have curved corners, the roof is flat with no slight doming and profile details; the edge of the roof is sharply right angled with the sides/ends; there is no curvature across the front driving end (it's just flat); and even the body bottom edge is straight without the angled rise behind the rear wheels.
See below for comparison of the rear end with, from left, the real thing, middle, an unfinished bashing project to convert a Fleetline and, right, the 3D print.
The printing material is horrible stuff, rough and very resistant to filing (I've made a mental note to avoid in future). As it will cut I've opened out the rear window opening and the rear upper deck window/escape door (both were far too small) and cut a slope on the bodyside bottom edge behind the rear wheels (I might need to increase that). I've also undertaken several rounds of filing, priming and re-filing including trying to round off the roof corners. But it's still not satisfactory and looks like it has been cast from concrete. It's going to take a lot more effort to get it smooth, acceptable and ready to add some details.
The lack of front end and roof curviture/doming is a big problem and necessary to capture the bus characteristics. Here's a pic that shows the lacking front curve compared with, from left, an EFE 4mm die-cast model and my effort to bash a Fleetline in to a Titan (unfortunately the side window arrangement is wrong and the Fleetline is a little shorter):
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