I've seen some neat machines posted here on CNCZone but little details on some aspects of them. One being how to use Thomson linear rods. I see
ads on Ebay where people are selling Thomson rails with bearings, but what good are they? I mean, you just get a cylinder type bearing that slides on a rod-like rail with seemingly no way to bolt to the bearing! Ad after ad shows the same thing. So how are you supposed to connect your flat metal plate to a round bearing that has no bolt holes?