This provides the complete stls to make a large rc working model of the MV Isle of Arran the Caledonian MacBrayne ferry that serves the islands on the west coast of Scotland.

The original ferry is one of the oldest still working in scotland at 43 years old, known by those who love her as the Auld Trooper, because she reliably covers for any of the newer ferries when they break down.

The model has been designed to be controlled by at the minimum two channels of radio control, operating the motors and the rudders. However you could expand that to six channels, if you made the stern ramp and bow door open, had motoras controlled independently and swithced the lighting on and off. Details for doing all of this are contained in the very full instruction manual.

The printing of the model was completed on a filament printer. I used a Creality K1 Max using PETG filament. PETG filament is better for a working model as it is stronger and more waterproof. The plate size of this printer is 300mm cubed and this model does use the X and y dimensions to their maximum when one included the necessary supports. The height of the tallest section was 220mm.

The model could be printed larger - at 1-48th scale you would need a 400mm square plate. It would also be possible to print smaller, at 1/96th scale on a smaller printer - all items would be printable at this size, though the model might not sail so well.

There are over 200 parts to print, and this is a complex model, but if you follow the instruction manual, the build ought to be relatively straightforward. However I am very happy to respond to questions or give advise on the cgtrader message service.

If you wish to look at the instructions before committing to buy and build a free copy of them are available to look at on cgtrader - please follow this link https://www.cgtrader.com/free-3d-print-models/hobby-diy/robotics/mv-isle-of-arran-rc-model-ferry-instruction-booklet