On 18 Oct 2003 09:00:30 -0700, jim rozen wrote:

snip

That's right, Morgan makes it clear that one has to have the
surfaces within a thousanth or so by other means, before scraping.
Also that grinding is a very poor way to prepare a surface for
hand scraping, as it gives local hard spots. As you say,
milling is prefered.


From recent experience you _can_ scrape down 5 thou or so. It just seems to
take about 25 times as much effort as starting at 1 thou. You really do have
to remember that you don't even think about accuracy until _all_ of the area
has shown blue at least once. Until that point, you don't really know how deep
the hollows are.


Mark Rand
RTFM