[modeleng] Re: Mystery Thread & New Loco
- From: "Shep" <shep.28@xxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Tue, 15 Aug 2006 09:52:26 +0100
Al
The 1000 rpm top speed was the suggesion of the lathe manufacturers - not
the speed used by me! On cutting very short screws in times past, I used
to turn the lathe by hand, to avoid 'sweating marbles'! Because the
Hardinge has a positive stop, I now do these under power, but still at a
modest speed - this is easier on the nerves!!
Cheers! Hubert
----- Original Message -----
From: "Allen Messer" <al_messer@xxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Tuesday, August 15, 2006 1:27 AM
Subject: [modeleng] Re: Mystery Thread & New Loco
> Screwcut at 1,000 rpms? No way for me! I'm not that
> experienced! I always use bottom back gear and then I
> sweat marbles until the job is finished.
>
> Al Messer
>
> --- Shep <shep.28@xxxxxxxxxxxx> wrote:
>
> > Barrie
> >
> > I find the easiet way to screw-cut is to stop the
> > lathe at the end of the
> > cut, withdraw the tool, and reverse the lathe - in
> > this way whatever the
> > thread, it is always on track.
> >
> > I bought an ancient Hardinge last year, and with
> > this lathe, screwcutting at
> > speed is a doddle! You can thread up to a
> > shoulder, and the lathe will
> > stop.
> > The topslide has a device for withdrawing, and the
> > reverse on the
> > screwcutting does not lose the track Hardinge
> > suggest that you do not
> > screwcut above 1000 rpm!
> >
> > Cheers! Hubert
> >
>
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