The small diameter section (that would be bored) is 2" long and about 1" diameter.? Isn't there a 2x rule, or something like that?? Anyways, I do have a steady rest that I think would capture the end.? Might as well use it
From: "Warren LeMay notebook@... [7x12minilathe]" <7x12minilathe@...> To: 7x12minilathe@... Sent: Thursday, July 27, 2017 11:23 AM Subject: Re: [7x12minilathe] Painted Myself Into a Corner Again
?
I agree unless you have a boring bar with an adjustable offset
that is short enough...? With that, you could bore the large hole
to depth and then flip it.
With that much stock out there though, I'm not sure how steady
you are without the center.? Visually, I don't think I'd try the
boring bar without a steady in the mix somewhere.? It could bite
and coughup the whole mess on you.
Good luck with it....
Warren L
On 7/27/2017 1:54 PM, Arthur Coe
acoe@... [7x12minilathe] wrote:
?
Thanks.?
I'm probably going with a slight variation of your
suggestion since I will need to bore the hole to a
bigger diameter at the small end.? I'll start by
chucking the small end, using the already faced surface
to assist in alignment.? After indicating as you
suggested,? I'll then face the large diameter end.
Next,
I'll flip and re-align the piece, using the now faced
large diameter end against the chuck face to assist in
the alignment.? Then drill through the existing center
hole and bore the end to the larger diameter.
From:
"Warren LeMay notebook@...
[7x12minilathe]"
<7x12minilathe@...> To:7x12minilathe@... Sent:
Thursday, July 27, 2017 2:05 AM Subject:
Re: [7x12minilathe] Painted Myself Into a Corner
Again
?
The
new account worked great....and good
photo too!!
I stay with my original suggestion
- part it, flip it, center it, drill
it, and face it.? You also have enough
of the small area to indicate and even
have finished the large area enough
that you can indicate there too.
Just to make yourself feel better,
you might want to indicate the large
end, then take an inside mike and
measure the finished area to the
ways.? If it's too far for your mike,
a 123 block should bring you to a test
spot.
However, dialing in the small area
in your 4 jaw as you normally would,
then checking the large end should do
it.? If both ends indicate, they are
on axis.
Warren L
On
7/26/2017 4:49 PM, acoe@...
[7x12minilathe] wrote:
?
I
I am now the proud possessor
of a Flickr account.? Trying
again with a photo posted on
that site (let's see if it
works): ?
?
So, there (assuming photo is
accessible) is the piece I'm
working on.? If I don't go the
short drill bit route suggested
by one of you guys, I'll be band
sawing the turned section off at
about Section A-B.? The face at
C has been faced off as close as
I could get to the TS center and
there is a center drilled hole
for the TS also.
Right now the center drilled
hole, the lesser diameter
turning (about 1" diameter) and
the turned major diameter
section (2" diameter) are all
concentric.
My goal is to get the sawed
off portion re-mounted in my
4-jaw so it is centered and all
the turned sections are
concentric to the rotation of
the spindle.
Got a couple of ideas
already.? Any other thoughts?