Working my way through upgrades to my RF-30. Bought it not new but pretty much unused for a 1997 vintage machine. Trammed the head to the table within 0.001" both x and y. Now to the upgrades. Added a VFD and new motor, decided hand turning the x was getting old so added a power feed on the x. Now working on the DRO. X axis on, Y axis scale arrived non-functional with a replacement on the way from the seller. Still deciding how best to mount the z. Still a work in progress but I did get to use the power feed and x axis of the DRO making spacers to mount the shield over the scale. Both worked great!.