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Believe it or not, there are some guys that like to collect older
machine shop equipment. Shapers seem to gather a lot of attention on
Facebook. Those and belt drive equipment were signs of a shop to run
away from when I started this trade.<br>
<br>
Those big lathes are either a curse or a blessing. Our TOS will go
around 30" with the gap out. There have been times we could have
used bigger. Normally it collects dust, firing up 2-3 times a year.
It pulled about a 3 week stint last summer.<br>
<br>
John Hall<br>
<br>
<div class="moz-cite-prefix">On 4/3/2020 12:01 PM, Cecil Bearden
wrote:<br>
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<p>After Ithought a little, I forgot about the 48x120 gap bed
lathe, the 24in shaper, the 12x36 surface grinder and the other
one sitting outside that was dropped off a forklift at the
shippers. I have a 36in Yates American Bandsaw that a forklift
operator dropped while loading. It was one the Navy owned
during WWII that sawed the decking for ships. I have another
36in that I need to try to get working. I also have a 40 ton
horn press. in addition to the 40 ton ironworker. and a Warner
swasey #2 turret lathe, and somewhere around here is an old
screw machine. There is a couple of multiple spindle drills and
all manner of old machines.... There are not very many young
folks that know how to operate these old machines. Just not a
lot of demand for one-off repair work either.. Both old guys
that were my teachers in my machine work are now gone.. <br>
</p>
<div class="moz-cite-prefix">On 4/3/2020 10:46 AM, Stephen Offiler
wrote:<br>
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<div dir="ltr">I was just out on the factory floor and noticed
one of the CNC's was about to hit a bar change, and figured
I'd try to capture a video of the whole thing. It starts with
a quick overview of the CNC and the bar feeder sitting at
idle. Then it shows the part being made, which is the handle
of our double-ended machinist scribe. Then I fire it up to
make the last possible part before the bar is effectively
consumed, then we see a part being made, although it is kind
of hard to see due to the coolant splash. Then it does the
bar change, consisting of pulling back the "remnant" (the end
of the bar that's now too short to make another part) while
dropping a new 12' bar, engaging it, and feeding it into the
machine to continue automatic operation.
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<div><a href="https://youtu.be/uy57CqHdicg"
moz-do-not-send="true">https://youtu.be/uy57CqHdicg</a><br>
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<div>SO</div>
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<br>
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<div dir="ltr" class="gmail_attr">On Fri, Apr 3, 2020 at 10:27
AM Stephen Offiler <<a href="mailto:soffiler@gmail.com"
moz-do-not-send="true">soffiler@gmail.com</a>> wrote:<br>
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<div dir="ltr">Wow, Cecil, that's quite an equipment list!
Some big heavy stuff on that list! The only manual
machining I do is making little tools, jigs &
fixtures, and "my" shop here at work has just one (very
nice) Hardinge HLV-H "Super Precision" lathe, a 2J-head
Bridgeport, a Kent 6x18 grinder, and a DoAll bandsaw. The
magic is always in the accessories; the 5C collets and the
4-jaw chuck for the Hardinge, the R8 collets for the mill,
the various precision vises and other workholding for mill
& grinder, indexing heads, and a whole compliment of
cutters, drills, taps, wheels, etc etc.
<div><br>
</div>
<div>Oh and I do owe you a response on the ESAB plasma
cutter. Unfortunately, it's a pass. Sorry. We have
this one job we're developing now that involves making
rather precise cuts, but we're already down that road
with a chop-saw that's working quite well. We just do
basically zero with sheet material most suited for
plasma.</div>
<div><br>
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<div>SO</div>
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<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Apr 3, 2020 at
9:54 AM Cecil Bearden <<a
href="mailto:crbearden@copper.net" target="_blank"
moz-do-not-send="true">crbearden@copper.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">I planned to open a
machine shop when I retired.. However, here in OK <br>
there is not much demand and the only jobs I had were
making some <br>
decorating crap for some traveling vendors. The biggest
job was wire <br>
forming for some Potpourri Pie holders. I had to build
a jig to bend <br>
the handles with an air cylinder and rack and pinion.
Then I had to roll <br>
a ring and weld it together with m spot welder then spot
weld the rings <br>
to the handles The handles were also the feet to hold
it above the <br>
stove burner. I lost the pics of it. I had a 20KW spot
welder and had <br>
traded for a 10hp Variable frequency driver and motor
from a technical <br>
school. I dropped the amperage with the variable
frequency drive to <br>
keep from burning the wires up. The wires were about
3/16 dia.<br>
It was fun for a while, then I felt like I was wasting
my talents on <br>
crap... Machine shops were closing down here to send
jobs offshore. <br>
So, I have a building with a 36x120 lathe, a 16x84
lathe, a 9x40 lathe, <br>
a Cincinnati Mill with a 16x72 table and universal
head, 2ea Kearney <br>
Trecker mills with universal heads, another later model
Cincinnati <br>
overarm mill with a 16 x 72 table, A Bridgeport, a
couple of knee mills <br>
one Japanese, the other old old US made. I did one job
with the newer <br>
Cincinnati overarm making T-nuts for a big holding
table. Now they just <br>
sit in case I need to make a part for my old junk. Then
I was going to <br>
build industrial engines, and bought the boring bars,
head work <br>
equipment and a big big crank grinder. Never got the
crank grinder set <br>
up. It is still on a trailer and a stray tornado took
out the building <br>
it was stored under.<br>
Cecil<br>
<br>
On 4/3/2020 7:01 AM, Mark Johnson wrote:<br>
> Hey - no problem with the CNC talk, at least not
from me. I've been a <br>
> software guy all my life but I find machining
absolutely fascinating - <br>
> wish I had learned more about it! I'm learning
now...<br>
><br>
> Mark J<br>
><br>
> Columbia, MO<br>
><br>
> On 4/3/2020 5:38 AM, Stephen Offiler wrote:<br>
>> Hi John -<br>
>><br>
>> Hope the list will tolerate some CNC banter.
We have 1 job that we <br>
>> hold close, using .0001" offsets; all the rest
it would be more like <br>
>> .0005" or more. Swiss excels in small precise
stuff and also long <br>
>> slender stuff, and we are heavy on the latter.
Don't need all that <br>
>> precision, but it's handy to have: I can give
the guys setup sheets <br>
>> with .XXX" dimensions and no tolerance, and
they can hit the numbers <br>
>> dead-on quite easily. Keeps me from having to
even think about <br>
>> tolerances which is quite a luxury for an
engineer.<br>
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