Logging Car

When I was in high school I purchased set of logging cars for my Sumpter Valley logging engine. Unfortunately it appears that Roundhouse Products doesn't make them anymore. I've seen a couple on eBay but figured they would be easy enough to build on my 3d printer. I'll post my work stl files on Thingiverse (https://www.thingiverse.com/thing:4307905) So far I have a working car with the couplers at the right height. Download the STL files and added


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