Lathe, drillpress, milling machine available, but.....

wrote:
...

People seldom work as close to a lathe as they do a propellor, ...

LOL! Add that to the top ten list. I meant vice-versa.

--

FF

"Dan" wrote in message
news:RC3Kf.4733$Ug4.1284@dukeread12...
kd5sak wrote:

With lathes I remember a major hazard was ties when someone would flip
his over his shoulder or tuck it into his apron instead of removing it.

Dan, U.S. Air Force, retired

You just made me remember ties. My principal got enthused about teachers
looking unprofessional and required that all shop teachers wear one. Now one
feature of my personality is my undeniable propensity for "messin'" with
authority. I did comply with his dress requirement, but my tie was always a
"clip-on" and, in class, it was usually clipped to my shirt pocket. He never
questioned my fashion selection, but we'd have had a discussion on safety
issues if the point had been raised.(G)

Harold
KD5SAK

Morgans wrote:
"Jim Carriere" wrote


Then you have forgetting the chuck key in the chuck (duck!)


I have a serious suggestion to solve that problem. I am a shop (carpentry)
teacher, and it is convenient, impossible to loose a key, and safe.

Tape (or buy a holder) the chuck key to the power cord, about a foot from
the plug.

You have to unplug the drill while changing bits. (good idea)
You keep from misplacing the chuck key (a good thing)
You never will turn on the drill press with the chuck key in the drill. (a
very good thing)


My drill press has a foot momentary contact switch on it. When I was
cutting out the lightening holes in the wing ribs for my RV-6 I clamped
the rib to the press table in two places before ever spinning the fly
cutter. I figured the two clamps plus the foot switch would lessen the
chances of doing open chest surgery on myself with a spinning wing rib.

The chuck key for my lathe has a spring on it. You have to press the
key into the chuck and, as soon as you stop pushing on the key, the key
pops out of the chuck.

The drill press we had at work had a safety interlock that really
worked. You had to put the chuck key arm in a switch before the drill
press could be turned on. The chuck key arm would activate a momentary
contact switch in the circuit for the drill press... no chuck key in the
switch, no drill press operation...

"Jim Carriere" wrote

Then you have forgetting the chuck key in the chuck (duck!)

I have a serious suggestion to solve that problem. I am a shop (carpentry)
teacher, and it is convenient, impossible to loose a key, and safe.

Tape (or buy a holder) the chuck key to the power cord, about a foot from
the plug.

You have to unplug the drill while changing bits. (good idea)
You keep from misplacing the chuck key (a good thing)
You never will turn on the drill press with the chuck key in the drill. (a
very good thing)
--
Jim in NC

If they cannot use a lathe safely, they should not be operating an
airplane,
or possibly even driving a car.

"Well that has to be one of the ten stupidest things I ever seen on
Usenet. The knowledge skills required to safely operate a lathe are
significantly
different from those required for flying or driving. People who are
highly competent as pilots may still not know a damned thing about lathes."

Response:

Implicit in the word "safely" is the knowledge of how to operate it. It was
not a statement that someone should be able to operate a lathe without
training any more than they could operate an airplane or car without
training. As a matter of fact, people who are highly competent as pilots
may not be able to fly many aircraft - without training for that particular
aircraft. So, I shall restate it - if someone can learn to operate an
automobile or airplane safely, they can learn to operate a lathe.

As to the "well that has to be one of the ten stupidest things I ever seen
on Usenet.", I am not sure that added anything to the conversation other
than a public demonstration of improper grammar.

My chuck key had a spring in it to prevent leaving in the chuck. Problem
was that it would fly out after removing the chuck and I would spend a half
hour trying to find the spring and pin. I finally just glued it in and hang
it next to the switch. I did have a problem once with a hand drill. I was
wiring my house and up on a ladder about 15 feet and drilling through a beam
with a 1/2" drill. The bit caught on a knot and ripped me off the ladder
and started spinning me around. While I was turning, I realized what the
screw on handle was for. I managed to avoid injury, but felt stupid.

Colin

"John Ammeter"

The drill press we had at work had a safety interlock that really worked.
You had to put the chuck key arm in a switch before the drill press could
be turned on. The chuck key arm would activate a momentary contact switch
in the circuit for the drill press... no chuck key in the switch, no drill
press operation...

Sounds like a nice setup.

Do you also have to have a guard around the drilling area?

I see those in catalogs, but can not imagine how you could use one, and
still work in control, and be safe.
--
Jim in NC

On Sun, 19 Feb 2006 15:12:17 GMT, wmbjk
wrote:

On Sun, 19 Feb 2006 06:26:31 -0500, Michael Horowitz
wrote:

The local EAA chapter has a lathe, drillpress, milling machine, etc
set up in the back of the chapter house. As far as I can tell, the
lathe hasn't been used in a while. When I asked, someone rightly
replied they were concerned someone might hurt themselves using the
lathe. Having had some training with a lathe, I recognize that danger,
but there should be a way for the Chapter to feel comfortable
allowing use of the lathe. A training program would be ideal

Has anyone else been faced with this situation and how did it get
solved? - MIke

You might buy several hockey helmets with face shields, to be used by
nervous club members when operating the drill press and milling
machine. Trade the helmets for the lathe, and take it home for safe
disposal before it can maim or kill anybody.

Wayne

Wayne - that went WAY over my head! - Mike

Yup, and the first thing the kid learns from the senior class is that a #29
drill shank will defeat that safety switch nicely.



"John Ammeter" wrote in message
...


The drill press we had at work had a safety interlock that really worked.
You had to put the chuck key arm in a switch before the drill press could
be turned on. The chuck key arm would activate a momentary contact switch
in the circuit for the drill press... no chuck key in the switch, no drill
press operation...

True... you're only as safe as you want to be.

RST Engineering wrote:
Yup, and the first thing the kid learns from the senior class is that a #29
drill shank will defeat that safety switch nicely.



"John Ammeter" wrote in message
...



The drill press we had at work had a safety interlock that really worked.
You had to put the chuck key arm in a switch before the drill press could
be turned on. The chuck key arm would activate a momentary contact switch
in the circuit for the drill press... no chuck key in the switch, no drill
press operation...

often does. Some of my
60s longhairs also learned they needed to restrain their flowing locks
when
working near
rotating machinery. I had to constantly preach on that point. No total
scalpings ever occurred, but it was a constant worry and a few small
floating locks were removed.

Harold
KD5SAK

///////////////////////////////////////////////////////////////
Boy does that bring back a funny memory. Back in the early 70's when I
was in shop class down in Coral Gables High we had a great teacher who
was a bit of a "redneck". There was this kid named Tracy who had hair
down to the middle of his back, that kinda bothered poor ol Mr S but he
was a trooper and didn't give this guy too big of a hard time. Mr S
always kept the belt on the drill press set on the loose side so if
there was a hang up no one would get hurt too bad. Well, one day Tracy
was using the drill press and leaned over a bit too far and got his
hair tangled up in the chuck and sure enough it yanked him right into
the press. The teachers desk was about 50 feet away and after Mr S
realized there wasn't a huge threat to this kids life he SLOWLY got out
of his desk, walked over to the press and turned off the switch. By
this time the whole class was gathered around the scene and it was
clear Tracy was not hurt, but for sure pinned tightly to the chuck. By
about this time a grin came across Mr S's face and instead of just
grabbing the chuck and revolving it backwards to unwind his hair, he
slowly walked over to the tool board and got a big pair of scissors. Up
till then poor Tracy wasn't making any noises, that is till he saw the
scissors. Then the screaming started ..... Of course ya all know what
happened next G. The whole class laughed till we all ****ed in our
pants. Those were the good ol days................