I've decided I need some sizes of tool holders for the Hurco KMB1, that just
do not seem to exist. I've looked at various options and employ several of
them, but what I really need is solid one piece tool holders in those sizes.
In order to make things a little quicker for setup and tool changes most of
them will get extended nose for holding the tools so that small tools with
have a similar over all length to larger tools. Among them of course is a
handle full of 3/16 and 1/8 with an extended nose. Maybe upto 3/8. To this
end I've picked up some "micro" carbide boring bars. Those I have on hand
have a 3/16 shaft with a flat to orient the cutting tip.

Anyway, my plan is do everything except back drill the clearance hole in one
setup on the modestly ok import 14x40 lathe. The locking color will get
machined separately and expanded with heat to be slipped on later. After
measuring several commercially made tool holders that part really isn't all
that critical. The taper is what accounts for all of the accuracy of the
tool.

My query is about the little baby boring bars. The best way to set them up
and mount them. I don't have any boring bar holders that small. I almost
said "of course," but I've learned when it comes to machining if somebody
can think of it somebody has probably already made one. For my larger
boring bars I have actual boring bar holders that fit the QCTP on the bigger
lathe. Now I do have some tool holders for my QCTP that have a groove in
the bottom for a boring bar. I keep a 3/8 boring bar in one all the time.
Its pretty handy. I am just wondering if the little tiny 3/16 shank (.120
minimum hole size) micro bars will hold well in that or if they would just
get lost. I'll have to cut pretty light since I'll be boring medium hard
steel, and I'll be creeping up on a dimensions with a minus pin gage, but I
want to get as rigid as possible with such a small tool.

My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.

On Tue, 21 Nov 2017 12:54:35 -0700, "Bob La Londe"
wrote:

I've decided I need some sizes of tool holders for the Hurco KMB1, that just
do not seem to exist. I've looked at various options and employ several of
them, but what I really need is solid one piece tool holders in those sizes.
In order to make things a little quicker for setup and tool changes most of
them will get extended nose for holding the tools so that small tools with
have a similar over all length to larger tools. Among them of course is a
handle full of 3/16 and 1/8 with an extended nose. Maybe upto 3/8. To this
end I've picked up some "micro" carbide boring bars. Those I have on hand
have a 3/16 shaft with a flat to orient the cutting tip.

Anyway, my plan is do everything except back drill the clearance hole in one
setup on the modestly ok import 14x40 lathe. The locking color will get
machined separately and expanded with heat to be slipped on later. After
measuring several commercially made tool holders that part really isn't all
that critical. The taper is what accounts for all of the accuracy of the
tool.

My query is about the little baby boring bars. The best way to set them up
and mount them. I don't have any boring bar holders that small. I almost
said "of course," but I've learned when it comes to machining if somebody
can think of it somebody has probably already made one. For my larger
boring bars I have actual boring bar holders that fit the QCTP on the bigger
lathe. Now I do have some tool holders for my QCTP that have a groove in
the bottom for a boring bar. I keep a 3/8 boring bar in one all the time.
Its pretty handy. I am just wondering if the little tiny 3/16 shank (.120
minimum hole size) micro bars will hold well in that or if they would just
get lost. I'll have to cut pretty light since I'll be boring medium hard
steel, and I'll be creeping up on a dimensions with a minus pin gage, but I
want to get as rigid as possible with such a small tool.

My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.







Greetings Bob,
Holding those small bars in the v grooved will be fine. And the
setscrews will locate on the flat to boot. You may run out of height
adjustment though. This means you might need to put a little spacer on
the tool post for the knurled height adjustment nut to bear against. I
do this with no problems.
Eric

"Bob La Londe" wrote in message
news

My first thought was that I might have to make a holder for the
little boring bars that will fit in the QCTP holder. I'll be
drilling and boring modestly deep for that size tool.

Making a holder may be less trouble than fishing a dropped one out of
the chip tray.
-jsw

On Tue, 21 Nov 2017 12:54:35 -0700, "Bob La Londe"
wrote:



My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.



I made this from an import 5C collet block to hold small boring bars
and other round shank tools.
http://www.nedsim.com/share/5CToolholder00.JPG
http://www.nedsim.com/share/5CToolholder01.JPG

--
Ned Simmons

"Jim Wilkins" wrote in message news
"Bob La Londe" wrote in message
news

My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.

Making a holder may be less trouble than fishing a dropped one out of
the chip tray.
-jsw

****** HA! I had not thought of that. I have lost parts in the chip tray.
A couple times it was faster to make another part than to look for the first
one.

"Ned Simmons" wrote in message
...

On Tue, 21 Nov 2017 12:54:35 -0700, "Bob La Londe"
wrote:



My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.



I made this from an import 5C collet block to hold small boring bars
and other round shank tools.
http://www.nedsim.com/share/5CToolholder00.JPG
http://www.nedsim.com/share/5CToolholder01.JPG

******* That's a nice looking tool Ned.

wrote in message ...

On Tue, 21 Nov 2017 12:54:35 -0700, "Bob La Londe"
wrote:

I've decided I need some sizes of tool holders for the Hurco KMB1, that
just
do not seem to exist. I've looked at various options and employ several of
them, but what I really need is solid one piece tool holders in those
sizes.
In order to make things a little quicker for setup and tool changes most of
them will get extended nose for holding the tools so that small tools with
have a similar over all length to larger tools. Among them of course is a
handle full of 3/16 and 1/8 with an extended nose. Maybe upto 3/8. To
this
end I've picked up some "micro" carbide boring bars. Those I have on hand
have a 3/16 shaft with a flat to orient the cutting tip.

Anyway, my plan is do everything except back drill the clearance hole in
one
setup on the modestly ok import 14x40 lathe. The locking color will get
machined separately and expanded with heat to be slipped on later. After
measuring several commercially made tool holders that part really isn't all
that critical. The taper is what accounts for all of the accuracy of the
tool.

My query is about the little baby boring bars. The best way to set them up
and mount them. I don't have any boring bar holders that small. I almost
said "of course," but I've learned when it comes to machining if somebody
can think of it somebody has probably already made one. For my larger
boring bars I have actual boring bar holders that fit the QCTP on the
bigger
lathe. Now I do have some tool holders for my QCTP that have a groove in
the bottom for a boring bar. I keep a 3/8 boring bar in one all the time.
Its pretty handy. I am just wondering if the little tiny 3/16 shank (.120
minimum hole size) micro bars will hold well in that or if they would just
get lost. I'll have to cut pretty light since I'll be boring medium hard
steel, and I'll be creeping up on a dimensions with a minus pin gage, but I
want to get as rigid as possible with such a small tool.

My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.







Greetings Bob,
Holding those small bars in the v grooved will be fine. And the
setscrews will locate on the flat to boot. You may run out of height
adjustment though. This means you might need to put a little spacer on
the tool post for the knurled height adjustment nut to bear against. I
do this with no problems.
Eric

******* Thanks Eric, Per Jim's comment as long as I load them up over the
tool cart and not over the lathe so I don't lose one in the chip pan. LOL.

On Tue, 21 Nov 2017 15:31:50 -0700, "Bob La Londe"
wrote:


"Jim Wilkins" wrote in message news
"Bob La Londe" wrote in message
news

My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.

Making a holder may be less trouble than fishing a dropped one out of
the chip tray.
-jsw

****** HA! I had not thought of that. I have lost parts in the chip tray.
A couple times it was faster to make another part than to look for the first
one.

Or fab a rake so you can empty the tray more often?

--
Shake off all the fears of servile prejudices, under which weak minds
are servilely crouched. Fix reason firmly in her seat, and call on her
tribunal for every fact, every opinion. Question with boldness even the
existence of a God; because, if there be one, he must more approve of
the homage of reason than that of blindfolded fear.
-- Thomas Jefferson

On Tue, 21 Nov 2017 15:32:30 -0700, "Bob La Londe"
wrote:

"Ned Simmons" wrote in message
.. .

On Tue, 21 Nov 2017 12:54:35 -0700, "Bob La Londe"
wrote:



My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.



I made this from an import 5C collet block to hold small boring bars
and other round shank tools.
http://www.nedsim.com/share/5CToolholder00.JPG
http://www.nedsim.com/share/5CToolholder01.JPG

******* That's a nice looking tool Ned.

I'll second that. Wish I could weld like that.


P.S: Apparently, Google and/or Mozilla have issues with Ned. WTH?

Deceptive site ahead (large text on red background)

Firefox blocked this page because it may trick you into doing
something dangerous like installing software or revealing personal
information like passwords or credit cards.

Advisory provided by Google Safe Browsing.

--
Shake off all the fears of servile prejudices, under which weak minds
are servilely crouched. Fix reason firmly in her seat, and call on her
tribunal for every fact, every opinion. Question with boldness even the
existence of a God; because, if there be one, he must more approve of
the homage of reason than that of blindfolded fear.
-- Thomas Jefferson

"Larry Jaques" wrote in message
...
On Tue, 21 Nov 2017 15:31:50 -0700, "Bob La Londe"
wrote:


"Jim Wilkins" wrote in message news
"Bob La Londe" wrote in message
news

My first thought was that I might have to make a holder for the
little
boring bars that will fit in the QCTP holder. I'll be drilling
and boring
modestly deep for that size tool.

Making a holder may be less trouble than fishing a dropped one out
of
the chip tray.
-jsw

****** HA! I had not thought of that. I have lost parts in the
chip tray.
A couple times it was faster to make another part than to look for
the first
one.

Or fab a rake so you can empty the tray more often?

IIRC you don't have a lathe.

I keep a baking tray under the spindle so I can easily dump the chips,
but they are miserable to sort through to find small dropped parts,
being oily, sharp and in all sizes.

- - - - -
This is an inexpensive and useful 30V 5A DC Wattmeter that you can
open non-destructively to solder test leads to the USB power pins. I
bought the transparent blue one so the internal case clips would be
visible. Other models of the black one may have more USB charging
features.
https://www.amazon.com/Voltage-Leezo...%2Btester&th=1

The display shows both milliAmp-hours and Watt-hours for battery
capacity testing, although it doesn't work at the voltage of a single
Lithium unless the cell has a 5V inverter, such as a cell phone
booster. The leads I added let it measure 12V or 24V batteries, or
adapt USB devices to external power supplies or test loads.

- - - - -
I made simple and effective folding stands for the 100W Grape solar
panels from 1/2" EMT cut into two 5' lengths and bent into a Vee with
a conduit bender. The cut ends are hinged to the back of the panels.
A short piece of 3/4" heater hose serves as the non-skid foot.

-jsw

On Tue, 21 Nov 2017 12:54:35 -0700
"Bob La Londe" wrote:

snip
My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.

I've haven't sprung for a QCTP yet nor boring bar set...

The boring bar set I was looking at the other day would work in my
original holder with something like this:

https://www.youtube.com/watch?v=7WI6bhDrM7c

Rather than using set screws I was thinking of cutting a couple of
cross slots in a little from either end. Make it so the two outside
setscrews would be able to flex the holder enough to secure the boring
bar. The two inside set screws would just hold it. One advantage to
rolling your own similar to this is you could make it longer than the
TP area. Thus providing extra support, rigidity for more reach from the
tool holder/cross slide. The set screws would be necessary for that
version.

--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email

"Leon Fisk" wrote in message
news
On Tue, 21 Nov 2017 12:54:35 -0700
"Bob La Londe" wrote:

snip
My first thought was that I might have to make a holder for the
little
boring bars that will fit in the QCTP holder. I'll be drilling and
boring
modestly deep for that size tool.

I've haven't sprung for a QCTP yet nor boring bar set...

The boring bar set I was looking at the other day would work in my
original holder with something like this:

https://www.youtube.com/watch?v=7WI6bhDrM7c

Rather than using set screws I was thinking of cutting a couple of
cross slots in a little from either end. Make it so the two outside
setscrews would be able to flex the holder enough to secure the
boring
bar. The two inside set screws would just hold it. One advantage to
rolling your own similar to this is you could make it longer than
the
TP area. Thus providing extra support, rigidity for more reach from
the
tool holder/cross slide. The set screws would be necessary for that
version.

--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email


My first home made boring bit holder was a rod slit lengthwise
horizontally and I regretted it for the loss of shear stiffness. Now I
make custom tool bit holders from bar stock nearly the height of the
QCTP slot.
-jsw

On Wed, 22 Nov 2017 08:39:36 -0500
"Jim Wilkins" wrote:

snip
My first home made boring bit holder was a rod slit lengthwise
horizontally and I regretted it for the loss of shear stiffness. Now I
make custom tool bit holders from bar stock nearly the height of the
QCTP slot.

Yeah but other than time you didn't have a lot invested and you
learned something

I was thinking that an offset hole in rectangular stock might be
better. It could give you different heights and/or rigidity depending on
how it was installed.

--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email

On Tue, 21 Nov 2017 17:27:07 -0800, Larry Jaques
wrote:

On Tue, 21 Nov 2017 15:32:30 -0700, "Bob La Londe"
wrote:

"Ned Simmons" wrote in message
. ..

On Tue, 21 Nov 2017 12:54:35 -0700, "Bob La Londe"
wrote:



My first thought was that I might have to make a holder for the little
boring bars that will fit in the QCTP holder. I'll be drilling and boring
modestly deep for that size tool.



I made this from an import 5C collet block to hold small boring bars
and other round shank tools.
http://www.nedsim.com/share/5CToolholder00.JPG
http://www.nedsim.com/share/5CToolholder01.JPG

******* That's a nice looking tool Ned.

I'll second that. Wish I could weld like that.

Thanks.



P.S: Apparently, Google and/or Mozilla have issues with Ned. WTH?

Deceptive site ahead (large text on red background)

Firefox blocked this page because it may trick you into doing
something dangerous like installing software or revealing personal
information like passwords or credit cards.

Advisory provided by Google Safe Browsing.

I got the same thing after moving to a new web host last week. I don't
know why, but I suspect it may have to do with a previous host getting
hacked and my email hijacked.

--
Ned Simmons

On Wed, 22 Nov 2017 15:55:15 -0500, Ned Simmons
wrote:

On Tue, 21 Nov 2017 17:27:07 -0800, Larry Jaques
wrote:

P.S: Apparently, Google and/or Mozilla have issues with Ned. WTH?

Deceptive site ahead (large text on red background)

Firefox blocked this page because it may trick you into doing
something dangerous like installing software or revealing personal
information like passwords or credit cards.

Advisory provided by Google Safe Browsing.

I got the same thing after moving to a new web host last week. I don't
know why, but I suspect it may have to do with a previous host getting
hacked and my email hijacked.

Yeah, I've been through that 3 times now. Bloody bastids. Can't live
with them, and can't shoot 'em. 'Tis the pits.

Notify the blackballers and get the new host verified.

--
Shake off all the fears of servile prejudices, under which weak minds
are servilely crouched. Fix reason firmly in her seat, and call on her
tribunal for every fact, every opinion. Question with boldness even the
existence of a God; because, if there be one, he must more approve of
the homage of reason than that of blindfolded fear.
-- Thomas Jefferson