Al , have ya put it out over on the Practical Machinist forum ? A
lot of exposure over there . There's a for sale section & a
South Bend forum also . They kinda like ya to participate before
ya use the for sale section but? I don't think there would be a
issue posting it over on the South Bend section there .
animal
On 6/23/24 3:33 PM, Al MacDonald wrote:
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It’s the full meal deal….3mm pitch leadscrew/half nuts with metric
QCGB. ?As you can see in the photos it’s in pristine condition,
and the leadscrew shows zero wear. ?It comes with the leadscrew,
banjo and all the gears necessary to run it. ?I think it was a
special order for Canadian schools as some of the writing on the
plaque is in English and French. ?Oddly enough the thread dial
looks totally normal to me, not what I’ve seen photos of in
Machinery’s Handbook (or was it SB’s How to run a Lathe).
?Here’s what’s on my SB now. ?Note it’s marked as
for a 9” lathe so I assume these metric parts will also fit
one. ?Note the imperial QCGB is marked as 4-1/2 ft and mine
only has a 3-1/2 ft. bed. ?I turned mine back to fit, with
some extra hanging over the end of the leadscrew support, so I
could put a graduated wheel on it one day if I wanted. ?So I’m
in western Canada but another fellow on this forum is visiting
here soon and has volunteered to take it back across the
border, to the land of cheaper shipping.
Cheers,
al.
On Jun 23, 2024, at 13:03, Mike Poore via <
mpoore10@...>
wrote:
I might have interest, but I am curious.
Are the leadscrew threads actually metric? I thought,
but could be wrong, that they used a gearset in the
head that interpolated metric threads and changed the
dials and chart while still using inch based threads
on the screws. I know they sold a kit to cut metric
threads on a standard inch based lathe, but maybe they
also made a full metric lathe as well. I do not think
I would want to convert my lathe fully to metric, but
I would like some gears for the head stock for
occasional metric thread cutting.
On 6/21/2024 2:02 PM, Al MacDonald via wrote:
Greetings, ?a number
of years ago I bought my first shop machine, a SB
10k but didn’t notice at the auction it was metric.
?I think it came from a school and was in pristine
condition. ?I ended up buying an imperial quick
change gearbox, leadscrew and half nuts, as I had no
interest in metric. ?I’ve used the large dial
crossfeed and compound feed in metric but it’s
painful to have to sneak up on diameters. ?Would
there be any interest in these metric parts?
Thx, al.
