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Liebherr R9800 Air Cleaners, exhaust stacks being built by toy builder Don Campbell from Northern Michigan., originally uploaded by Don Campbell Models.
Liebherr Exhaust Stacks and aircleaner junction box- I am now working on the designs for all the parts that mount on the top of the revolving house . These were definately the largest exhaust stacks I have ever built. Compare them to the full sized pair of pliers sitting in front of them. Once the top parts are roughed in, I will move back to the front of the frame and start designing the framework that will support the large boom assembly and the lift cylinders.
