Joe AutoDrill wrote:
Check out this link for a 2" hole being drilled through a 3/4" piece of
steel with the 5160-x series AutoDrill.

http://www.youtube.com/watch?v=29oswoasnLQ

We haven't quite solved the chip build-up issue yet given the different
diameter holes that can be drilled, etc. See the problem he

http://www.youtube.com/watch?v=3DJiDKnuHuI

We think that either a stationary bar next to the tool or some type of peck
cycle will help solve the issue but given the fact that we're two days into
the 2" diameter process, I figure we're doing okay.

Note that the chip issue in the first video is solved by having an
interrupted cut. In other words, the large 2" hole intersected with a
another hole just ever so slightly so that the chip was not continuous.

Would love thoughts from the experts on the chip break issue. Will try to
answer any legitimate questions asked.

I think it'd have some monster contributions to the swarf collection.

I don't think a stationary bar would do it. A much quicker peck cycle
would -- all you'd have to do is ease up on the pressure, or stop the
tool advance momentarily. Is your motion controller up to that, or
would that be asking too much? What do you use for actuators and
controllers?

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com