Lightweight Surface Plate Cover

[mklotz]

Paul,

You probably know this already but let me throw it out here for the benefit of future readers.

If you mount your surface plate on three points it's possible for it to tip if a heavy object is placed outboard of the single point of support..

Three point supports should have two near-to-touching supports outboard of the single point. These structures do not actually touch or support the surface plate but rather serve to "catch" it if it begins to tilt. Normally, they are only a few thousandths shy of touching so, if the plate tilts, it can only do so very slightly and anything on the plate will not slide off.