Drilling
 

I would like to make a 1 1/4" wide hole 10 1/2" deep. Trying to do this on
the lathe is proving more difficult than I would have thought. I'm drilling
into rounded stock. Trying to hold it on the drill press didn't prove
successful either. Any suggestions appreciated.

Tim

Drilling
 

"tdup2" writes:
I would like to make a 1 1/4" wide hole 10 1/2" deep.

That's not drilling, that's hollowing ;-)

Seriously - what kind of wood, and how are you holding it in the
lathe? Something like that, I'd hope you're using a chuck (not a
spur) to hold the wood (not the the drill bit), with the drill bit in
the tailstock.

Drilling
 

A hole that size can prove taxing on a motor. I do 1" holes for my
peppermills, I bought an extension for my forstner bit, it was all
dimar stuff, so there is no play.
What size motor are you using?
The alternative I have used in the past is auger bits in a brace.
Cheap, but not fun.
tdup2 wrote:
I would like to make a 1 1/4" wide hole 10 1/2" deep. Trying to do this on
the lathe is proving more difficult than I would have thought. I'm drilling
into rounded stock. Trying to hold it on the drill press didn't prove
successful either. Any suggestions appreciated.

Tim

Drilling
 

I should have been a little more clear. Delta 14" lathe and I did try a
drill press chuck in the tailstock. It almost worked it's way right out of
the tailstock. I have an extension for the fostner bit but still not going
smooth enough.


"tdup2" wrote in message
...
I would like to make a 1 1/4" wide hole 10 1/2" deep. Trying to do this on
the lathe is proving more difficult than I would have thought. I'm drilling
into rounded stock. Trying to hold it on the drill press didn't prove
successful either. Any suggestions appreciated.

Tim

Drilling
 

Well, your bit has to be very sharp. The duller it is the more it wants
to wander off course. I have had problems getting jacobs chuck to seat
in the tailstock. I have taken it and pressed it into the blank with
the lathe off, and using the tailstock to press it in. You have to go
slowly (feed rate that is, lathe speed 500 or so, less if you want). An
extention helps if you want to go deep.You can also drill it from both
sides, as long as you start out with a cylinder and everything lines up
before you start. The two holes won't meet exactly in the center, but
then again, if you drill it all the way from one end, it won't come out
on center either.
robo hippy
tdup2 wrote:
I should have been a little more clear. Delta 14" lathe and I did try a
drill press chuck in the tailstock. It almost worked it's way right out of
the tailstock. I have an extension for the fostner bit but still not going
smooth enough.


"tdup2" wrote in message
...
I would like to make a 1 1/4" wide hole 10 1/2" deep. Trying to do this on
the lathe is proving more difficult than I would have thought. I'm drilling
into rounded stock. Trying to hold it on the drill press didn't prove
successful either. Any suggestions appreciated.

Tim

Drilling
 

glue the part to a pc of plywood and clamp it to the drill press table
and go slow and work your way down using the extension on your bit, blow
it out to keep it clean and cool and it should work out, I have done
this in the past, good luck

Drilling
 

Adds to the tedium, but doing that a couple of inches at a time and
using a pilot drill each time would help keep on track.

Ken

Drilling
 

"tdup2" wrote in message
...
I should have been a little more clear. Delta 14" lathe and I did try a
drill press chuck in the tailstock. It almost worked it's way right out of
the tailstock. I have an extension for the fostner bit but still not going
smooth enough.

I would like to make a 1 1/4" wide hole 10 1/2" deep. Trying to do this on
the lathe is proving more difficult than I would have thought. I'm
drilling into rounded stock. Trying to hold it on the drill press didn't
prove successful either. Any suggestions appreciated.

http://www.mytoolstore.com/milwauke/accaugr.html

Lots of torque on this kind of setup, so make your DP jig rigid. The long
ones guide well and ejection isn't too bad. r-e-a-l s-l-o-w is good.

Drilling
 

"George" wrote in message
...

http://www.mytoolstore.com/milwauke/accaugr.html

Lots of torque on this kind of setup, so make your DP jig rigid. The
long ones guide well and ejection isn't too bad. r-e-a-l s-l-o-w is
good.

Almost forgot.

If you insist on the lathe, make sure you've got a couple of steadies on
your side. A three-point type is optimum, as on a gun lathe, but the simple
wedge steadies either side of centerline will be a big help as well.

Drilling
 

On Tue, 26 Sep 2006 15:24:49 -0400, "tdup2"
wrote:

I would like to make a 1 1/4" wide hole 10 1/2" deep. Trying to do this on
the lathe is proving more difficult than I would have thought. I'm drilling
into rounded stock. Trying to hold it on the drill press didn't prove
successful either. Any suggestions appreciated.

Just a thought about using a forsner bit for this- having used them
fairly extensively, in flat work, I've found that they really like to
be cleared every time you drill as deep as the cutting head. That's
an awful lot of clearing to do on the lathe- I know an auger bit is
often suggested as well, but I've had some poor luck with those as
well when drilling into end grain. My vote is for a good ol' spade
bit. After trying the other two options, I found that this works the
best for drilling lamps, and has two advantages- namely, they're
cheaper, and you can buy them as long as you need them to be, so there
is no extension involved.

If you really need the flat bottom you'd get from a forsner bit, try
drilling it with the spade bit to within a half inch or so of the
finished depth, and then finish it off with the forsner bit.

Hope this helps, I had a lot of headaches making lamps before I hit
upon this.