I want to use a magnetic base and precision deflection meter with my tablesaw, which has aluminum instead of cast iron table, which means it is not a magnet-friendly material. I'm wondering if anyone has ever succeed doing something like mounting rare earth magnets to the underside of their aluminum tablesaw deck, to get a magnetic attachment to work, or if they have found an alternative to precisely measure a tiny movement of the tablesaw fence that works for them?
I want to be able to do things, which might be IMPOSSIBLE with a portable-aluminum saw: I saw a guy on youtube using one to reduce the size of his workpiece by a small amount. I want to be able to remove a small amount of material from a workpiece that is, say a few thousandths of an inch too wide.
I suspect from the comments that using a precision magnetic deflection meter is an exercise in futility in a saw like mine (Bosch 4100-09)