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Posted by Geoffrey Johnson on May 15, 2008, 3:44 pm
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Andrew Mawson wrote:
> > IEB wrote:
> >
> > > On Mon, 12 May 2008 12:07:58 +0000,
> postmaster@johnsonlb.plus.net(Geoffrey
> > > Johnson) scribed thus...:
> >
> > > > I recently obtained a pukka taper turning attachment for my M300
> > > .....snippity snip......
> > > Harrisons are looking
> > > > for £675 to put a new screw assembly and feed-nut on my
> doormat!
> > > > ....does any good
> > > > soul know of a cheaper source of parts?
> >
> >
> > > Have you tried such as G and M Tools.... certainly not 'cheap' but
> well
> > > worth a try. I've been getting good secondhand Harrison stuff
> off them
> > > for about 12 years now... a bit steepish on pricing .. but IMHO
> good
> > > service and well worth a shout.
> >
> > > Ian
> >
> > Thanks Ian, I've just tried that one. Most helpful as you suggested
> and
> > knew the problem soon as I spoke.
> > I had similarly asked around several used kit suppliers at Harrogate
> last
> > week to no avail.
> > I'm looking for the leadscrew parts that are sitting quietly
> snoozing in a
> > box or drawer somewhere!
> >
> > Geoff
> >
> If you know the spec you could cut out the middle man, as it was
> almost certainly made by the Halifax Rack & Screw Co
> AWEM
Unfortunately I don't have a spec Andrew. I'd need to spend loadsamoney
to get the original parts! I see what you mean about that company though,
and thanks for the suggestion.
The screw and nut are relatively easy to make. The main complication is
the splined parts. The screw needs a male spline at the drive end, and
the bit that the handle/power feed winds has a female spline. I'm working
on a fabrication plan with a friend of mine.
Many thanks - Geoff.
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