Edge Angle, Angle Guide, and Blade Body Angle

[blgentry]

For all of the electronic versions it might be good idea to check them against a physical angle block to see if they live up to their claims of accuracy.

Just measured my 15 degree CNC cut wedge using my Angle Cube.  It measured about 14.90 degrees.  I say "about" because depending where you put the cube, if you hold it down, etc, the reading changes just a little bit.

Also, it's shocking how not level almost everything is.  Put the cube down on a table and zero it.  Did it zero?  Better double check because sometimes the act of pushing the button moves the cube in some dimension enough that it's NOT zeroed.  Ok now it's zeroed.  Move the cube a inch or two one way or the other.  Still zeroed?  On most of my garage surfaces, zero moves around as I move the cube on the surface.

This is probably way too much discussion about angles anyway.  What have I started? 

Brian.