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I have an interest in airfield vehicles and transports, one of them being a modern trailer that would carry large aircraft, such as an AW101 Merlin or Panavia Tornado etc. The scale I like to work to is 1:144 scale; however, there are very few of these types of vehicles available in true 1:144 scale. As such, I plan to build one of these trailers by drawing it in CAD and then printing it on a 3D resin printer. CAVEAT - I am new to CAD and this may be an idea too far but I am going to try my best. This model will be produced from an amateur's point of view; other, more experienced CAD users might baulk at my methods but please bear with me. Hopefully, the end result will be a nicely printed model to be placed into a diorama setting. So, here we go. This is the image that sparked my interest: The publicity brochure came with a plan and profile drawing which I have scanned and uploaded to Fusion 360. One of the first advantages that I found with this CAD package is that, whatever the size of the plan being used, it is very simple to resize it to the scale you wish to work with. The feature is called Calibrate and, as long as you have one known reference size on the plan, you enter that size and the whole plan resizes accordingly. I prefer to draw and work to the scale that I will be printing my model at; others tend to draw their CAD in full size; however, I have found that scaling down the model from full size can mean that some smaller parts become unprintable as they've been scaled down too far. Enough with the dialogue, here is my first sketch which I have drawn as an overlay on the profile part of the plan. It is one of the chassis side frames. I only have to draw this once because I can just duplicate more frames as I need them. Once a feature, such as this frame, has been drawn/sketched then I can make it wider/thicker by using a tool called Extrude. This allows me to pull out the thickness of the sketch to whatever size I need. After that, I can hide the plan and this will show the extruded part which is then called a Body. Here is a view of the first body of the chassis. The end result, which is obviously a long way off yet, will consist of many sketches and lots of bodies and with luck will form a nicely printed model. Please feel free to contribute any helpful advice or recommendations, even images of this trailer that might help me identify parts and their locations. Thanks for looking. Mike EDIT: trailer version amended to a GTS44/3 17.5 on advice from fellow members.

Ok so this is the second model in 35 odd years so be easy! The Scammell transporter was always an iconic model back in the day when the only option was the Airfix 1/72 one. I always wanted to do this justice so when I found out about this beast I couldn't resist. This is a pretty good model with some nice detail however as I've discovered with non tank military stuff your options for detail are boundless. All those break pipes, chains, leavers, cables, springs. It's a rabbit hole of detail. I did plenty of research (Google) and added / modified as I saw fit. The colour scheme is sort of early war rather than desert. The fun bit with me is the weathering and since I discovered pigments they seem to be the weapon of choice. I tried not to be too muddy but the rust bug took hold and I think it's a bit OTT but I had fun so...... I have added a few scratchbuild bits such as the greatcoat in the cab, the seat cushions, all the tarp covers, in-field additional storage racks, lots of cables and wires including break pipes and pipes and wires in the engine. I even did the windscreen wiper motors and cables which you can't see! Aftermarket wheels were used as the kit ones just don't look realistic. Also aftermarket REME resin kits were added. The kit itself is very nice despite the plethora of ejection marks! There are a few things wrong but nothing too obvious I don't think but then I'm no expert. Thanks for looking........... Cheers A

NASA Crawler-transporter. Originally developed for carrying the Saturn series of rockets, was later modified to take the Space Shuttle, and further modifications for the next generation of The Space Launch System. These vehicles have an incredible all up weight of 2,721,000 kilograms (5,999,000 lb) and can carry 8,200,000 kg (18,000,000 lb). They have a speed of 1mph when loaded with an mpg of 125 US Gallons to the Mile! Pics thanks to Mike Costello.