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Old Feb 19, 2012, 12:56 PM
Jim Wilkins
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n/a Posts
Re: Drill Sharpening

"steamer" <steamer@sonic.net> wrote in message
news:4f412ed2$0$11970$742ec2ed@news.sonic.net...

> --Well yes, but speaking of the Quorn has anyone come up with a
> widget to make the Quorn toolholder move like the one in a Darex?
> "Steamboat Ed" Haas


Harig makes very nice ones:
http://www.harigmfg.com/pricelist.html

So far I've either been outbid or they were too specialized to be worth the
cost.

The 5C Spindex comes close but mine isn't rigid or precise enough. Its
spindle shows promise, if ground or lapped and fitted to a more versatile
base block.

I haven't checked this one's claims
http://www.tools4cheap.net/proddetail.php?prod=5cspin
or examined this
http://www.tools4cheap.net/proddetai...prod=radattach
I might stop by if he ever gets an SB Heavy 10 taper attachment.

The Darex DD cam ramps appear to be a constant-angled helix of approximately
four turns per inch, which could be cut on a lathe. I only eyeballed the
ramp against a strip of paper wound around the collet body.

jsw
Old Feb 21, 2012, 05:04 PM
Charles p
Guest
n/a Posts
Re: Drill Sharpening

On Feb 16, 4:07 pm, Machinator.Antiq...@cloudcuckoo.lnd wrote:

> I am fed up with blunt twist drills, and poorly designed, awkward
> sharpening attachments.
>
> Feedback on dedicated sharpening machines welcome.
> Advice to "build a Quorn" . . .  is not !
>
> I see Warco list a fairly cheap one.
>
> Many thanks
>
> M


I bought one of these some years ago (for less that the price of this
one):
http://www.cottandco.com/lots/dormer...-point-grinder

Useful, proper piece of kit.
If you want you can chuck away the stand and bench mount it - in the
domestic world the dust extraction isn't critical

Charles
Old Feb 25, 2012, 12:55 PM
Drawfiler
Guest
n/a Posts
Re: Drill Sharpening

On Feb 21, 10:04 pm, Charles p <char...@littlewrongs.org.uk> wrote:

> On Feb 16, 4:07 pm, Machinator.Antiq...@cloudcuckoo.lnd wrote:
>

> > I am fed up with blunt twist drills, and poorly designed, awkward
> > sharpening attachments.

>

> > Feedback on dedicated sharpening machines welcome.
> > Advice to "build a Quorn" . . .  is not !

>

> > I see Warco list a fairly cheap one.

>

> > Many thanks

>

> > M

>
> I bought one of these some years ago (for less that the price of this
> one):http://www.cottandco.com/lots/dormer...-point-grinder
>
> Useful, proper piece of kit.
> If you want you can chuck away the stand and bench mount it - in the
> domestic world the dust extraction isn't critical
>
> Charles


I too have a Dormer 108 and find it great for most drills, however
before that I used the 4 facet method on a Clarkson T&C grinder to
sharpen all my drills, this method could be used on a surface grinder.
If you need an attachment for a conventional toolroom grinder, there
was a design recently in MEW that should work well.

Peter
Old Feb 28, 2012, 12:17 PM
machinator.antiquus@cloudcuckoo.
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n/a Posts
Re: Drill Sharpening

Many thanks to all who contributed.
Certainly some topics to follow up.
 


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