Not that I have any CNC aspirations but a little bit of whats under the hood of a PM (Precision Mathews) 833TV mill as he dismantles & starts a CNC conversion. I think this mill is basically an ongoing evolution of the RF-45 style platform. But what I found interesting is this particular model has a VFD/motor. I guess that makes it more amenable to CNC conversion. At ~20:25 he runs it. OMG, sounds like a sewing machine compared to my old RF-45. That would be pretty nice to have in a manual machine. (No PM affiliations).