I recently acquired an excello mill which came with an old AcuRite 2 axis dro. It works mostly,, but the x axis will randomly cut out and reset back to the "power loss" screen. This only happens while the machine is running, I am asssuming from vibration and so something is shorting out. I took off the scale and looked at the electronics, nothing obvious. I can replace the x axis scale with a new one and a new cable which apparently will connect to my current control box. Will cost about $600. Or I can get a 3 axis Chinese (from various vendors) for not much more. The new one I imagine would be able to do bolt centers, etc.. which my current one does not. I am a new hobby machinist and don't yet know if I need 3 axis or a better computer/box. Any thoughts? Will the new ones be as accurate?