25 Nov
2008
25 Nov
'08
1:12 p.m.
Distance between heads and drum was measured using
cigarette paper as
a shim.... >
As an aside, one of the common cigarette papers in the UK (I forget which
one, but I can trivially look it up) is almost exactly 1 thou (0.001")
thick. A common trick of machinists doing not-too-accurate work is to
lick a bit of such paper and stick it to the workpiece, then bring in the
cutting tool (machine running) until it just scrapes the paper. The
cutter is then 1 thou from the work and you have a reference point for
the feedscrew.
-tony