(home-made)! Although for the sake of relevance to this topic, it's worth noting that although Dan hand-scraped many of the surfaces, and employed the spirit of

(home-made)! Although for the sake of relevance to this topic, it's worth noting that although Dan hand-scraped many of the surfaces, and employed the spirit of these techniques to measure and align the lathe, he didn't actually need to use the 3-plate method to build it because he was working against an existing master surface plate.