[AT] OT: non-tractor covid-19 activates
Cecil Bearden
crbearden at copper.net
Fri Apr 3 18:15:04 PDT 2020
Well, I had to set it outside, I know that sounds bad, but the old
stuff can set outside if coated with used oil and then power wash it a
little steel wool and it is in good condition. Old machine tool stuff
does not pit if ti is by itself. I save used oil from the tractors &
trucks and use it to oil machinery that has to sit out. These old
pieces are flat belt driven machines converted to individual electric
drives. I have converted some to VFD and made some really nice
machines. I need to get a 28 Plymouth sedan project in a container so I
can move some machinery inside.. My 12 ton forklift needed an engine
transplant and the help I had to do it went to the offshore oil patch
and I ended up doing everything by myself.. My old forklift is a
tricycle type Gerlinger that was used on an aircraft carrier. It had a
V-8 Mercury Industrial with a 4 spd trans and reverser. It drove a
truck axle that had a giant roller chain sprocket that drove a 30 in
sprocket that was connected to the rear 20in truck duals. the old
Mercury was so low on compression it would not fire on ether, so I found
a 6cyl ford and 2spd fwd & rev trans out of a pneumatic roller. Removal
of the Mercury involved 3 hours with a cutting torch. Going back needs
a crank pulley machined to attach a 4 groove A section belt pulley to
drive the main hydraulic pump. The cylinder is a 14in x 12ft long
ram. It takes a lot of oil to move it. One of these days I will get
it running. If the rainy season quits here I may get some things
done.. This morning it was 30mph gusting to 40 with freezing drizzle..
Yesterday was shirtsleeve weather....
Cecil
On 4/3/2020 11:43 AM, Stephen Offiler wrote:
> You "forgot" a 48 x 120? ;-) I guess you must not be walking past
> it very often. That's quite an amazing assortment you've got there
> Cecil and you're right that not many younger folks have any clue about
> the big, old, manual stuff. Still has a place in this world however.
> CNC is great when you need a lot of parts, but, parts you'd make on
> machinery that large will not be in high-volume demand! Used
> machinery dealers would probably enjoy taking a tour of your place and
> cutting you a check for the whole lot.
>
> SO
>
>
> On Fri, Apr 3, 2020 at 12:02 PM Cecil Bearden <crbearden at copper.net
> <mailto:crbearden at copper.net>> wrote:
>
> 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..
>
> On 4/3/2020 10:46 AM, Stephen Offiler wrote:
>> 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.
>>
>> https://youtu.be/uy57CqHdicg
>>
>>
>> SO
>>
>>
>> On Fri, Apr 3, 2020 at 10:27 AM Stephen Offiler
>> <soffiler at gmail.com <mailto:soffiler at gmail.com>> wrote:
>>
>> 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.
>>
>> 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.
>>
>> SO
>>
>> On Fri, Apr 3, 2020 at 9:54 AM Cecil Bearden
>> <crbearden at copper.net <mailto:crbearden at copper.net>> wrote:
>>
>> I planned to open a machine shop when I retired..
>> However, here in OK
>> there is not much demand and the only jobs I had were
>> making some
>> decorating crap for some traveling vendors. The biggest
>> job was wire
>> forming for some Potpourri Pie holders. I had to build a
>> jig to bend
>> the handles with an air cylinder and rack and pinion.
>> Then I had to roll
>> a ring and weld it together with m spot welder then spot
>> weld the rings
>> to the handles The handles were also the feet to hold it
>> above the
>> stove burner. I lost the pics of it. I had a 20KW spot
>> welder and had
>> traded for a 10hp Variable frequency driver and motor
>> from a technical
>> school. I dropped the amperage with the variable
>> frequency drive to
>> keep from burning the wires up. The wires were about
>> 3/16 dia.
>> It was fun for a while, then I felt like I was wasting my
>> talents on
>> crap... Machine shops were closing down here to send
>> jobs offshore.
>> So, I have a building with a 36x120 lathe, a 16x84 lathe,
>> a 9x40 lathe,
>> a Cincinnati Mill with a 16x72 table and universal head,
>> 2ea Kearney
>> Trecker mills with universal heads, another later model
>> Cincinnati
>> overarm mill with a 16 x 72 table, A Bridgeport, a couple
>> of knee mills
>> one Japanese, the other old old US made. I did one job
>> with the newer
>> Cincinnati overarm making T-nuts for a big holding
>> table. Now they just
>> sit in case I need to make a part for my old junk. Then
>> I was going to
>> build industrial engines, and bought the boring bars,
>> head work
>> equipment and a big big crank grinder. Never got the
>> crank grinder set
>> up. It is still on a trailer and a stray tornado took
>> out the building
>> it was stored under.
>> Cecil
>>
>> On 4/3/2020 7:01 AM, Mark Johnson wrote:
>> > Hey - no problem with the CNC talk, at least not from
>> me. I've been a
>> > software guy all my life but I find machining
>> absolutely fascinating -
>> > wish I had learned more about it! I'm learning now...
>> >
>> > Mark J
>> >
>> > Columbia, MO
>> >
>> > On 4/3/2020 5:38 AM, Stephen Offiler wrote:
>> >> Hi John -
>> >>
>> >> Hope the list will tolerate some CNC banter. We have
>> 1 job that we
>> >> hold close, using .0001" offsets; all the rest it
>> would be more like
>> >> .0005" or more. Swiss excels in small precise stuff
>> and also long
>> >> slender stuff, and we are heavy on the latter. Don't
>> need all that
>> >> precision, but it's handy to have: I can give the
>> guys setup sheets
>> >> with .XXX" dimensions and no tolerance, and they can
>> hit the numbers
>> >> dead-on quite easily. Keeps me from having to even
>> think about
>> >> tolerances which is quite a luxury for an engineer.
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