Re: [CAD_CAM_EDM_DRO] Diamond engraving cutters

Hi Alan,
I have a number of diamond points somewhat like you describe although the
steel rod shanks on mine are quite short (3/8") and have a screw thread to
mount them. These are designed for engraving by pressure alone and the ones
I have were used in a pantograph for scribing lines one steel scales. They
are not suitable for use in a rotary cutter where you need the type of
bonded diamond particle cutter as has been described by others. These rotary
diamond cutters are, of course, exactly what dentists use on your teeth
nowadays and a suitable approach to a friendly dentist (or better yet,
dental nurse) will usually bring a few of these cutters free. The guys doing
private dentistry round here tend to throw away even these diamond burrs
after every job under the pretence of not spreading aids but if you bung
them straight in a bath of bleach, there's no risk to you. (This doesn't
work with ordinary steel burrs as the bleach dulls their cutting edges, so
steel burrs need autoclaving (pressure cooker when the wife's out!) instead.

Ian
--
Ian W. Wright
Sheffield UK
www.iw63.freeserve.co.uk

----- Original Message -----
From: "Alan Marconett KM6VV" <KM6VV@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Nope, not a diamond dresser. It's a 1/8" shaft cutter for a dremel
> drill. 1" long, part #9929.