However this time we used 2mm card, as the contours were originally 1meter apart in real life which would 4mm at 1:250 scale. We decreased the size of the contours at 0.5 meter apart in real which is 2mm at 1:250 scale.
Overall this time it was easier to actually make the model because we managed to pick up a few trick the first time round. There's quiet a bit more to on this model, however we've decided to stop here for a while as we're falling behind on our design project work and for other modules. But I hope you guys enjoyed the final outcome, I'll be posting images of the final model when finished :)