??? ??? they say that the lathe is the only machine that can make
it self . I live near a Western Pacific RR Museum that has the
largest inventory of rolling stock ya can
actually operate & drive a full size trail there.
??? ??? been thinking of joining the staff , but I need to finish
some of my own projects first . I always wondered how they made
that first leadscrew
??? ??? animal
On 1/21/2019 4:27 PM, Dave Matticks
wrote:
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That looks cool.
Some of the old big stuff
wouldn't be so easy to reproduce today.
I've been to the Illinois
railway museum,? I'm in the neighborhood. They have some very
cool things that make you wonder how they did it at?the time!
Dave Matticks?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
Date: 1/21/19 17:45 (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Little blast from the
past
??? ??? Check out the photos on this site . I hope to visit
this site someday
they have self guided tours
??? ??? animal
On 1/21/2019 3:40 PM, Dave Matticks
wrote:
Now that sounds like a good
size lathe!
Now I prefer smaller work.?
I do pretty often start with a 75lb piece and when I'm done
it's reduced to maybe 12lbs!?
I'm happy to have a trainee at work? to empty the chip pan
though!
Dave Matticks?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
Date: 1/21/19 17:21 (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Little blast from the
past
That reminds me of the
largest lathe I was ever allowed to push the START button
on.? It was or had been a steam locomotive driver lathe.?
I don¡¯t recall for certain what the swing was.? But
greater than 48¡±.? Alamo Ironworks in San Antonio had it.?
My Father-In-Law ran their fleet maintenance department so
I had seen it.? So during the run-up to building the
Alyeska Pipeline, we had them machine some test defects
into 48¡± OD X60 line pipe.? For some reason, I want to say
that it was a 60x240.? I could just about stand up inside
of the steady rest
?
?
?
That was kind of a "medium" size boring bar. Don't remember
the dimensions but probably 8" diameter, maybe 6 or 8 feet
long with a #50 taper.
Can you see a series of slots? They're for the cutting
tools themselves, indexable carbide inserted, made them too.
We made 3 or 4 different sizes, those would have been 1" x
4", some adjustable and some fixed.
The large hinged part is a support for the cutter, clamps
on the bar. That one might have been for a 30" diameter
hole!
Biggest one I ever made was 10" diameter x something over
200" long. Boring crankshaft journals for Electromotive.
Feed the bar thru, get everything aligned then a guy would
get inside to put the tools in the slots climb out and bore.
Safety first! I guess.
Glad I don't work on big stuff anymore.
?
Dave
?
On January 21, 2019 at 6:54 AM Jody <jp4lsu@...>
wrote:
Nice pic.? What was that shaft for?
Were you measuring the OD or what?
"Inquiring minds want to know".
-Jody
