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

Dan wrote:
kd5sak wrote:
"COLIN LAMB" wrote in message
ink.net...
If it still is a concern, limit the use to adults and then have them
sign an appropriate release. In addition, you probably should
already have some liability insurance. The dangers from a lathe are
much less than a rotating propeller. I suspect more injuries occur
using a drill press than a lathe.

Colin

Speaking as an old Jr. High Shop teacher, I suspect you are right
about the drill press.
Especially when attempting to drill sheet metal. If not securely
retained sheet metal instantaneously becomes a rotating blade when
the bit grabs, as it 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

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.

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

Next, cutting too much material at once resulting in a broken cutting
tool (crack!), an ugly workpiece, and a lesson learned... which is also
why one wears eye protection.


Serious suggestion:

Maybe you (the original poster) could run a hands-on demo at the next
chapter meeting. If you could make even a small number of people (three
or four?) not afraid to use it that might do the trick. Who here admits
to experiencing, as a builder, fear of the unknown, be it tools,
welding, metal wood, glass/composite, etc, on at least one occasion? I
admit it.

"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

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...

"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

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...