¿ªÔÆÌåÓý

Tail Stock Cam Lock Kit installed!


Victoria Welch
 

Hi Folks,

Kit came in today and I got it installed. Sordid :-) details at:



For those that asked, the cam lock is not *really* in the way of the
quill lock. I suppose I could put a washer under the quill lock to
move it away some, but it doesn't look like it is really an issue at
this point.

FUN!

Take care, Vikki.
--
Victoria Welch, WV9K/7
"The revolution will not be televised." Anon.


 

G'day Vikki,
Well done.
Just one point; your annotations make reference to cutting oil.
Traditionally cast iron has been cut dry because it contains carbon
particles which cause the chips to fracture into small particles. You
will have observed that the chips form a paste with the cutting fluid
very much like a grinding paste, this is exactly what it is and it is
not good for your tools.
I understand, but haven't seen, that production machining of cast iron
uses an air blast to cool the tool and to remove the chips.
Once you get through the crust cast iron is great to machine even if it
is dusty.

One good turn deserves another.
Regards,
Ian


Victoria Welch
 

Hi Ian,

On Thursday 29 March 2007 17:51, steam4ian wrote:
G'day Vikki,
Well done.
Thanks!

Just one point; your annotations make reference to cutting oil.
Traditionally cast iron has been cut dry because it contains carbon
particles which cause the chips to fracture into small particles. You
will have observed that the chips form a paste with the cutting fluid
very much like a grinding paste, this is exactly what it is and it is
not good for your tools.
I was not aware of that. Yes, it was a goopy mess :-(.

I understand, but haven't seen, that production machining of cast
iron uses an air blast to cool the tool and to remove the chips.
Once you get through the crust cast iron is great to machine even if
it is dusty.
Unfortunately I am not going to be blowing anything around here, looking
forward to moving to someplace where I can have a real shop rather than
a tarp covered (when working) spare bedroom in the apartment.

I learned something today, thank you Sir!

Take care, Vikki.
--
Victoria Welch, WV9K/7
"You know your country is dying when you have to make a distinction
between what is moral and ethical and what is legal." jgd@...


 

Hi Vikki,

Don't feel too bad about that. A while back I made a similar blunder.

I knew cast iron had a rather high carbon content (~5% from memory)
but had never machined it before. So I mounted up my brand new face
plate to give it an initial facing cut - to true it. Wanting a
decent finish I kept up a goodly supply of WD40 aerosol. On a 160mm
disk it flicked everywhere. I had a nice line up the splash guard,
up the wall behind, fell short of the ceiling, down the driver's
door on my wife's car, across the floor and up my shirt. It took
some cleaning up.

So there are at least two of us who will remember not to lubricate
cast iron next time!

John



--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

Hi Ian,

On Thursday 29 March 2007 17:51, steam4ian wrote:
G'day Vikki,
Well done.
Thanks!

Just one point; your annotations make reference to cutting oil.
Traditionally cast iron has been cut dry because it contains
carbon
particles which cause the chips to fracture into small
particles. You
will have observed that the chips form a paste with the cutting
fluid
very much like a grinding paste, this is exactly what it is and
it is
not good for your tools.
I was not aware of that. Yes, it was a goopy mess :-(.

I understand, but haven't seen, that production machining of cast
iron uses an air blast to cool the tool and to remove the chips.
Once you get through the crust cast iron is great to machine
even if
it is dusty.
Unfortunately I am not going to be blowing anything around here,
looking
forward to moving to someplace where I can have a real shop rather
than
a tarp covered (when working) spare bedroom in the apartment.

I learned something today, thank you Sir!

Take care, Vikki.
--
Victoria Welch, WV9K/7
"You know your country is dying when you have to make a
distinction
between what is moral and ethical and what is legal." jgd@...


 

TO help contain the dry dust, put a magnet in a baggie and locate it
near your cutting.


--- In 7x12minilathe@..., "born4something" <ajs@...>
wrote:

Hi Vikki,

Don't feel too bad about that. A while back I made a similar
blunder.

I knew cast iron had a rather high carbon content (~5% from memory)
but had never machined it before. So I mounted up my brand new face
plate to give it an initial facing cut - to true it. Wanting a
decent finish I kept up a goodly supply of WD40 aerosol. On a 160mm
disk it flicked everywhere. I had a nice line up the splash guard,
up the wall behind, fell short of the ceiling, down the driver's
door on my wife's car, across the floor and up my shirt. It took
some cleaning up.

So there are at least two of us who will remember not to lubricate
cast iron next time!

John



--- In 7x12minilathe@..., Victoria Welch <wrlabs@>
wrote:

Hi Ian,

On Thursday 29 March 2007 17:51, steam4ian wrote:
G'day Vikki,
Well done.
Thanks!

Just one point; your annotations make reference to cutting oil.
Traditionally cast iron has been cut dry because it contains
carbon
particles which cause the chips to fracture into small
particles. You
will have observed that the chips form a paste with the cutting
fluid
very much like a grinding paste, this is exactly what it is and
it is
not good for your tools.
I was not aware of that. Yes, it was a goopy mess :-(.

I understand, but haven't seen, that production machining of
cast
iron uses an air blast to cool the tool and to remove the chips.
Once you get through the crust cast iron is great to machine
even if
it is dusty.
Unfortunately I am not going to be blowing anything around here,
looking
forward to moving to someplace where I can have a real shop
rather
than
a tarp covered (when working) spare bedroom in the apartment.

I learned something today, thank you Sir!

Take care, Vikki.


Victoria Welch
 

On Friday 30 March 2007, rancerupp wrote:
TO help contain the dry dust, put a magnet in a baggie and locate it
near your cutting.
Duhhh, I clean up the lathe when I do magnetic stuff with a magnet in a
sandwich baggie turned inside out, just turn it rightside out, seal
and toss.

Why didn't I think of that here?

Sometimes we're slow :-). Thanks for the pointer / refresher /
reminder :-)!

Also, on the cam lock, I did put a washer under the quill lock lever to
move it back a bit from the cam lock lever. It was getting in the way
after all.

Thanks & take care, Vikki.
--
Victoria Welch, WV9K/7
Some people are like a Slinky ... not really good for anything, but you
still can't help but smile when you see one tumble down the
stairs. --Unknown


Victoria Welch
 

On Friday 30 March 2007, born4something wrote:
Hi Vikki,

Don't feel too bad about that. A while back I made a similar blunder.

I knew cast iron had a rather high carbon content (~5% from memory)
but had never machined it before. So I mounted up my brand new face
plate to give it an initial facing cut - to true it. Wanting a
decent finish I kept up a goodly supply of WD40 aerosol. On a 160mm
disk it flicked everywhere. I had a nice line up the splash guard,
up the wall behind, fell short of the ceiling, down the driver's
door on my wife's car, across the floor and up my shirt. It took
some cleaning up.

So there are at least two of us who will remember not to lubricate
cast iron next time!
Comparatively I was lucky, all I had was a goopy pile in the tailstock
and some spatter on the drill press table!

Next time I will remember that. One has to be so careful about using
fluids around spinning things here and the less of it the better!

My face plate is still in the bag with the red goo, I'm very glad you
told me this story before I got to it :-)!

Take care, Vikki.
--
Victoria Welch, WV9K/7
The ultimate result of shielding men from the effects of folly is to
fill the world with fools. --Herbert Spencer, English Philosopher
(1820-1903)