A major project we have been working on is a scaled down version of the iconic Royal Albert Bridge which spans the Taymar bewtween Deven and Cornwall and Devonport and Saltash and was designed and built by Isambard Kingdon Brunel in 1859.  If made to scale, each of the central spans would be 2.4 metres long and stand 400mm from the high water point. To make this model practical and usable for a 4mm scale layout, we have made the central spans 1 metre long each and they stand 200mm above the baseboard level.  We have made a selection of approach pier support heights and approach sections to take straight and curved track, although any modeller would need a straight section before central section entrance piers, and any approach curves will need to be very gentle.  The STL files for this model will be available to purchase from our website and Cults3d.com once it is complete and printing checked.  There are now printers available that can handle large structures such as the FLSun V400.  The model will be split into printable sections that will fit on the FLSun V400 FDM printer.  Contact us for files for resin printing (we are currently printing once of the central spans on a resin printer).