Re: [CAD_CAM_EDM_DRO] Engraving (Dolphin does this)

Rich,

Thanks for straightening me out on these. I had gotten some presharpened
relieved cutters of the same style from one of the tool houses and forget
who it was. Was going through the sales catalog at about 2 am the other day
and noticed the ones on sale but did not look very close to see that they
were only the non-relieved blanks.

Tim
[Denver, CO]

----- Original Message -----
From: "RichD" <cmsteam@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, September 30, 2002 11:32 AM
Subject: Re: [CAD_CAM_EDM_DRO] Engraving (Dolphin does this)


> Tim,
> The V cutters I see in the flyer and big book are non-relief blanks.
> The user has to finish grind them to allow them to cut. As is, they will
> only plow thru the material.
> Proper engraving cutters can be had for a few $ more.
> Sharpening these is not difficult, but requires a special jig and a flat
> diamond lap wheel.
> See the lap (for gravers) at Rio Grande Jewelry Supply for an example.
> The jig is just a block of metal to hold the cutter at the tip angle and
> allows rotation of about 180 deg. Rotation is stopped just before
reaching
> the cutting edge. So, the grind is conical almost up to the edge leaving
> clearance and a sharp straight edge. The tip width and relief are done by
> hand by just touching to the wheel.
> RichD
>
>
> > Tim wrote:
> >
> > -> MSC has single flute V cutters in carbide on sale this month. They do
a
> > -> great job engraving.
> > ->
> > -> Tim
> > -> [Denver, CO]
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/