Re: [CAD_CAM_EDM_DRO] High speed spindle chuck

In a message dated 14-Dec-00 23:38:22 Central Standard Time,
Smoke@... writes:

> I do you get the CNC to peck drill 4 or 5 holes a sec. You'd really need
>

Yes, but I'm talking 0.1" between centers! Not the ones 1" or more!

I don't know how the machines are designed/built, but I have seen 'em in
action: Four quills, each with a "set" of drill-bits for the job being done,
so that when a drill-change is required, the machine will stop drilling and
"go over" and re-fill the collets automatically with new drills. Also, if a
drill breaks, the machine will DETECT and insert replacement, and continue,
leaving warning to check that hole and re-drill manually, if necessary (if
drill broken off in material). Each of these four quills can drill up to 7
layers of 1/16" FR-4 glass-epoxy copper laminate. Mind-boggling thing to
watch! Data for holes is typed-in as "X and Y coordinates, drill-size". But
that was 18 years back. No clue how much has changed, since!

Jan R.


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