Today, I would like to share my first creation on Eurobricks with you all. A model of a giant towbarless Pushback Tug. To be exact, the Goldhofer AST-1X 1360.
The real vehicle can lift up the front landing gear of the biggest aircrafts.
I tryed to build all the functions, how they are build in the real Goldhofer, especially with the rear steering.
The model has 8 RC functions:- Front wheel drive (XL Motor)- Front wheel steering (M Motor) - Rear wheel steering (2x M Motor) -- I had to decide, whether I would like to have crab steering or steering with different wheel angles to allow smooth driving. In the end I've chosen the second option, because crab steering is still kind of possible.- Raise cabin (M Motor)- Pneumatic pump (L Motor)- Raise landing gear (L Motor)- Close lid (M Motor)- Fix landing gear (M Motor)
Unfortunately, the model has some flaws. The cabin is lifted in a weird way, because of the battery box under it and I struggled with the lifting section. I had to use really strong clutch gears and worn out valves, and even with that, the valves didn't switch always. Also I had a problem with one of the pneumatic cylinders, the reason why I used two pumps. As a result I had to glue two 2L axle between the pumps to the red 1x2 thin liftarms because of the vibration. I was sick of searching for another solution .
Here is a quick render, made with LDD and Bluerender.
Images with higher resolution on Flickr: https://www.flickr.com/photos/151347462@N05/albums/with/72157684495359644
I already took the model apart, but l would still love to hear your opinion, some tips or criticism. Maybe I'll give that model another go in the future.