To clamp parts to one of the perforated hard surface blocks make
bunch of little clips of Nichrome or stainless steel wire. " L"
shaped about 1/2 " on the short arm and 1" on the long arm bent
so the angle is a bit less than 90 degrees. Place short arm in hole.
The long arm will hold work in place on the block . Use as many as
you need-- an oxidized surface keeps solder from sticking. They work
until lost. jesse