Well, after lots of pitch frustration in my first year of mirror
I took an evening or two and put together a very nice pitch tester.
weight is very close to 1 kg (Texereau's weight of choice) and I tried
make the point similar to his specs as well, though it it certainly not
The weight is attached to a piece of 1/2" square steel stock, and
end of the steel is drilled to accept a large nail that I ground the
on. It can slide up and down and lock the point at various
to accommodate laps of different thickness. The dial indicator
the fall of the mass quite accurately.
I'll include fall data for various laps when I get a chance. Now
are two pictures that demonstrate the motion of the weight and point -
the first photo the weight is all the way down, in the second I'm