Terri has said "that's called growth, honey" numerous times while I've been telling her about this project.
Here's the latest: I said "model railroading is kinda fun when you're not striving for perfection".
Case in point: the air compressor.
@mu26aeh printed me up a single stage compressor but when looking at photos for placement the big pipe into the cab really stood out.
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So I did this.
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The assembly is drying before installation.