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Here’s the build thread for one of my current projects, a 1/24 scale RV Conversion based on a Peterbilt 379. Imagine taking a retired truck and building your dream RV from it? This build will be mostly custom work, just like the real thing. These rigs don’t roll out of the ‘ol Winnebago factory…and you find models like this in a kit, either. Inspiration for this project came from rigs like this, (though the one above is a 389) where a used or factory-fresh commercial class 8 chassis is stretched and a coach body is added, creating the ultimate RV. The ultimate RV starts with the ultimate engine. Some may argue differently, but I think Cat’s 3406e from the late 1990’s is the finest example of diesel power, especially when it’s been decked out in aftermarket chrome and ceramic performance parts. I started with a resin Cat 3406E from Jamie at Moluminum. I detailed it using Ken Smith’s Car Modeller article on Fotki. I used 3d printed elbows from modelbuildermatt on Shapeways and metal fittings from Detail Master. Several engine components were scratch-built. The 18 speed Eaton Auto-shift transmission came from Moebius, with a lot of detail parts added using reference photos. Jamie’s casting didn’t include the 3 dimensional “CAT” logo on the chrome timing cover, but I added one using a casting of a Cat lapel pin I found on EBay that was the perfect size. I’m not a pro resin caster by any means, but I’ve found casting small, very simple parts, to be useful in this project. It took me several attempts to get the valve covers looking good. I finally found putting Molotow down first, then adding the black in the recessed areas via a Molotow black pen was best. Careful painting of the red stripe and a triangle-cut of a yellow decal finished the iconic look of the Caterpillar 3406e’s valve covers. I also put together a simple engine stand using square styrene tube. I still use it for other engines that are waiting to be installed in the next chassis. That’s the basic engine so far, more about the other engine components when we get to the chassis installation. Ask questions, I’m sure there’s explanations I missed. Next, let’s get the frame rails laid down…