ORIGINAL: Dsegal
A simple guage can be made by glueing two sticks together and marking a scale on one of them. I use this more often than the store-bought one.
The laser thingie I mentioned works on the same idea. The ruler method is simple and works.
ORIGINAL: cruzomatic
A ruler,,,,gezzzzz thanks guys, don't know what I was thinking.
Hey Cruze.. you asked the question so there is no need for sarcasm here.
CGr.