I need some new MT2 collets for my Bridgeport M head.

An outfit named Discount machine Shop sells a set, but they aren't very
pricey, which makes me know they're off-shore stuff.

If you've ever bought from them, let me know what you thought of their
quality. I don't want collets with a lot of run-out, but I cannot seem to
find an authentic Bridgeport set. (for which I'd gladly pay)

LLoyd

On 2007-10-22, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
I need some new MT2 collets for my Bridgeport M head.

An outfit named Discount machine Shop sells a set, but they aren't very
pricey, which makes me know they're off-shore stuff.

If you've ever bought from them, let me know what you thought of their
quality. I don't want collets with a lot of run-out, but I cannot seem to
find an authentic Bridgeport set. (for which I'd gladly pay)

I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i

On Mon, 22 Oct 2007 19:42:16 -0000, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

I need some new MT2 collets for my Bridgeport M head.

An outfit named Discount machine Shop sells a set, but they aren't very
pricey, which makes me know they're off-shore stuff.

If you've ever bought from them, let me know what you thought of their
quality. I don't want collets with a lot of run-out, but I cannot seem to
find an authentic Bridgeport set. (for which I'd gladly pay)

LLoyd
==============
Take a look at those from the little machine shop. I got their
collets and these work fine. Note that you may not need the set.
End mills [in the US are standard 3/8 and 1/2 shanks with the odd
1/4 ]

Changing tools with a MT collet is a bit of a pain in that you
have to unseat the collet to get it to release. Consider an ER
collet adapter. The problem is that these use up some space from
the spindle to the table.


2MT collet sets click on
http://littlemachineshop.com/product...oduct+Sea rch

individual 2MT collets
http://littlemachineshop.com/product...1751&category=
http://littlemachineshop.com/product...1749&category=
http://littlemachineshop.com/product...1747&category=

2MT=ER collet sets
http://littlemachineshop.com/product...2229&category=
again you may not need/want the complete collet set
Little Machine Shop's sister company HHIP.com sells just the
adapter and individual collets
http://www.hhip.com/products/product...D=900-0005-210
http://www.hhip.com/products/product...0-0005-061&p=2


Unka' George [George McDuffee]
============
Merchants have no country.
The mere spot they stand on
does not constitute so strong an attachment
as that from which they draw their gains.

Thomas Jefferson (1743-1826),
U.S. president. Letter, 17 March 1814.

Ignoramus12753 wrote:


I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i
What? You were 5 miles from me and didn't stop by? I would
have loved to meet you after all the online chats about TIG
welders and such!

Jon

Jon Elson wrote:
Ignoramus12753 wrote:



I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i

What? You were 5 miles from me and didn't stop by? I would have loved
to meet you after all the online chats about TIG welders and such!

Dumb me! Wrong St. Charles - it's more like 250 miles!

Jon

On 2007-10-23, Jon Elson wrote:
Ignoramus12753 wrote:


I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i
What? You were 5 miles from me and didn't stop by? I would
have loved to meet you after all the online chats about TIG
welders and such!

I would love to stop by actually.

i

On 2007-10-23, Jon Elson wrote:
Jon Elson wrote:
Ignoramus12753 wrote:



I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i

What? You were 5 miles from me and didn't stop by? I would have loved
to meet you after all the online chats about TIG welders and such!

Dumb me! Wrong St. Charles - it's more like 250 miles!

Jon


oops

"Jon Elson" wrote in message
...
Jon Elson wrote:
Ignoramus12753 wrote:



I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i

What? You were 5 miles from me and didn't stop by? I would have loved
to meet you after all the online chats about TIG welders and such!

Dumb me! Wrong St. Charles - it's more like 250 miles!

Jon

Jon,

I have bought many items from them and they have never failed to have
100% accuracy on orders. They ship same day. I have had tech calls into them
for bore gauges and got prompt, correct and polite service. They are not too
far from myself and Iggy, If I went in there I'd be bankrupt! The catalog
they offer is well stocked and a lot of China stuff but it works, they honor
warranty items no hassles and it's not Starrett or Mitty. but for non .0005
tolerance work the stuff is a great deal, they don't rape you on shipping
and I have never had a item backordered. I am really impressed with them.
Shars stuff really is not too bad at all. E-bay is usually cheaper but you
get K-Y with shipping from most sellers. This place is truly legit. I have
no affiliation with them. Just a satisfied customer (and I can be a dick
when I get jerked around by a vendor)

Respects,

Rob

"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message
. 3.70...
I need some new MT2 collets for my Bridgeport M head.

An outfit named Discount machine Shop sells a set, but they aren't very
pricey, which makes me know they're off-shore stuff.

If you've ever bought from them, let me know what you thought of their
quality. I don't want collets with a lot of run-out, but I cannot seem to
find an authentic Bridgeport set. (for which I'd gladly pay)

LLoyd

Decent quality for the price, shipping seems honest

--
Peter DiVergilio
Most of the money I've wasted was mostly spent trying to impress people who
were never going to like me anyway!

Ignoramus12753 wrote:
On 2007-10-23, Jon Elson wrote:

Ignoramus12753 wrote:


I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i

What? You were 5 miles from me and didn't stop by? I would
have loved to meet you after all the online chats about TIG
welders and such!


I would love to stop by actually.
Well, if you are coming near St. Louis, like if you are driving
55 to I-70 or something, then I'd certainly enjoy your stopping
by. I'm roughly 5 miles from that OTHER St. Charles, the one in
MO. I've been following your many exploits, both engineering
and "auctioneering". Every time I think my basement is full, an
opportunity to get something incredible turns up, and I have to
do a crash triage on all the accumulated goodies to make room.
That happened this spring when I bought my pick and place
machine, and had to get a 5' wide machine through a 3' door.
Hmm, but now I have a door wide enough to fit a car through, if
I should ever decide I wanted to. Like if I went totally nuts
and decided to make an electric or hybrid with a tube-frame or
something. Where would I find the time for such a project, though?

Jon

On 2007-10-24, Jon Elson wrote:
Ignoramus12753 wrote:
On 2007-10-23, Jon Elson wrote:

Ignoramus12753 wrote:


I bought stuff from them and was at their warehouse. Mostly it works
as described. They are in St Charles, IL. I bought my milling vise
from them and some R8 things.

i

What? You were 5 miles from me and didn't stop by? I would
have loved to meet you after all the online chats about TIG
welders and such!


I would love to stop by actually.
Well, if you are coming near St. Louis, like if you are driving
55 to I-70 or something, then I'd certainly enjoy your stopping
by. I'm roughly 5 miles from that OTHER St. Charles, the one in
MO. I've been following your many exploits, both engineering
and "auctioneering". Every time I think my basement is full, an
opportunity to get something incredible turns up, and I have to
do a crash triage on all the accumulated goodies to make room.
That happened this spring when I bought my pick and place
machine, and had to get a 5' wide machine through a 3' door.
Hmm, but now I have a door wide enough to fit a car through, if
I should ever decide I wanted to. Like if I went totally nuts
and decided to make an electric or hybrid with a tube-frame or
something. Where would I find the time for such a project, though?

Jon

I know what you mean. My eBaying is partly for profit, but partly for
fun also. Oops, just tripped over something...

i

F. George McDuffee fired this volley
in :


Changing tools with a MT collet is a bit of a pain in that you
have to unseat the collet to get it to release. Consider an ER
collet adapter. The problem is that these use up some space from
the spindle to the table.

That, it is. My reluctance to do that is chiefly because of the
excessive length from the spindle bearing, which tends to diminish the
already limited rigidity of the M head.

How's your experience with this type of setup taking reasonably deep
cuts?

LLoyd

On Wed, 24 Oct 2007 11:47:23 -0000, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

F. George McDuffee fired this volley
in :


Changing tools with a MT collet is a bit of a pain in that you
have to unseat the collet to get it to release. Consider an ER
collet adapter. The problem is that these use up some space from
the spindle to the table.

That, it is. My reluctance to do that is chiefly because of the
excessive length from the spindle bearing, which tends to diminish the
already limited rigidity of the M head.

How's your experience with this type of setup taking reasonably deep
cuts?

LLoyd
============
Reasonably deep is a relative term especially for a #2MT spindle.

My experience is limited to an Emco Compact 10 with the milling
attachment,
for pictures of this click on
http://mcduffee-associates.us/machining/emcoLathes.htm
when I retired the school was shutting down the machining program
and I got it at a good price.
also see
http://mcduffee-associates.us/machining/rearcoth.htm
for some additional views of the mill head.

My experience is that the head will move before you run into any
problems with the end-mill or head. Even with a MT collet you
still have a fair amount of overhang with a fly cutter.

Unless I need the extra space between the spindle and part, for
example using a Silver & Dimming drill [1/2 shank] or a co-ax
indicator [3/8 shank] I use the ER25 collet adapter.

Note that the #2MT collets go to a max 1/2 inch diameter while
the ER25 adapters go to 5/8 inch. I have found that for
everything I do, I only needed 3/16 [rarely], 3/8, 1/2, 5/8 ER25
collets, and only the 3/8 and 1/2 inch #2MT MT collets.

I also use the Weldon style #2MT end mill holders and these work
well. Their length is between the #2MT collets and the ER25
adapter. You won't need both the Weldon style and ER25 holders.
see
http://littlemachineshop.com/product...1706&category=
http://littlemachineshop.com/product...1705&category=
set
http://littlemachineshop.com/product...1978&category=

The big cramp is that I have a 10m/m drawbar and a 3/8 drawbar.
(actually long SHCSs) as the ER adapter is metric and the MT
collets, Weldon style adapters and #2MT boring head shank are
inch and you have to be careful not to use the wrong drawbar.

Hope this is of help.

If you are on a tight budget, I suggest first the MT collets, and
then the Weldon style adapters. The ER collet setup is very
nice, but far beyond the need of the typical home shop.



Unka' George [George McDuffee]
============
Merchants have no country.
The mere spot they stand on
does not constitute so strong an attachment
as that from which they draw their gains.

Thomas Jefferson (1743-1826),
U.S. president. Letter, 17 March 1814.

On Oct 24, 7:52 pm, F. George McDuffee gmcduf...@mcduffee-
associates.us wrote:
On Wed, 24 Oct 2007 11:47:23 -0000, "Lloyd E. Sponenburgh"





lloydspinsidemindspring.com wrote:
F. George McDuffee fired this volley
:

Changing tools with a MT collet is a bit of a pain in that you
have to unseat the collet to get it to release. Consider an ER
collet adapter. The problem is that these use up some space from
the spindle to the table.

That, it is. My reluctance to do that is chiefly because of the
excessive length from the spindle bearing, which tends to diminish the
already limited rigidity of the M head.

How's your experience with this type of setup taking reasonably deep
cuts?

LLoyd

============
Reasonably deep is a relative term especially for a #2MT spindle.

My experience is limited to an Emco Compact 10 with the milling
attachment,
for pictures of this click onhttp://mcduffee-associates.us/machining/emcoLathes.htm
when I retired the school was shutting down the machining program
and I got it at a good price.
also seehttp://mcduffee-associates.us/machining/rearcoth.htm
for some additional views of the mill head.

My experience is that the head will move before you run into any
problems with the end-mill or head. Even with a MT collet you
still have a fair amount of overhang with a fly cutter.

Unless I need the extra space between the spindle and part, for
example using a Silver & Dimming drill [1/2 shank] or a co-ax
indicator [3/8 shank] I use the ER25 collet adapter.

Note that the #2MT collets go to a max 1/2 inch diameter while
the ER25 adapters go to 5/8 inch. I have found that for
everything I do, I only needed 3/16 [rarely], 3/8, 1/2, 5/8 ER25
collets, and only the 3/8 and 1/2 inch #2MT MT collets.

I also use the Weldon style #2MT end mill holders and these work
well. Their length is between the #2MT collets and the ER25
adapter. You won't need both the Weldon style and ER25 holders.
seehttp://littlemachineshop.com/products/product_view.php?ProductID=1706...http://littlemachineshop.com/product...ProductID=1705...
sethttp://littlemachineshop.com/products/product_view.php?ProductID=1978...

The big cramp is that I have a 10m/m drawbar and a 3/8 drawbar.
(actually long SHCSs) as the ER adapter is metric and the MT
collets, Weldon style adapters and #2MT boring head shank are
inch and you have to be careful not to use the wrong drawbar.

Hope this is of help.

If you are on a tight budget, I suggest first the MT collets, and
then the Weldon style adapters. The ER collet setup is very
nice, but far beyond the need of the typical home shop.

Unka' George [George McDuffee]
============
Merchants have no country.
The mere spot they stand on
does not constitute so strong an attachment
as that from which they draw their gains.

Thomas Jefferson (1743-1826),
U.S. president. Letter, 17 March 1814.- Hide quoted text -

- Show quoted text -

Good discussion George.

Great tool.

You are a lucky guy.

TMT

F. George McDuffee fired this volley
in :

The big cramp is that I have a 10m/m drawbar and a 3/8 drawbar.
(actually long SHCSs) as the ER adapter is metric and the MT
collets, Weldon style adapters and #2MT boring head shank are
inch and you have to be careful not to use the wrong drawbar.

Thanks for all that. Hmmmm.... I could've sworn the ER adapter you pointed
me to yesterday had 3/8-16 drawbar tapping. Gotta go back and look again.

LLoyd

"Lloyd E. Sponenburgh" lloydspinsidemindspring.com fired this volley
in . 3.70:

Thanks for all that. Hmmmm.... I could've sworn the ER adapter you
pointed me to yesterday had 3/8-16 drawbar tapping. Gotta go back and
look again.


It is 3/8-16... Did I miss something here?

LLoyd

On Thu, 25 Oct 2007 11:53:13 -0000, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

"Lloyd E. Sponenburgh" lloydspinsidemindspring.com fired this volley
in . 3.70:

Thanks for all that. Hmmmm.... I could've sworn the ER adapter you
pointed me to yesterday had 3/8-16 drawbar tapping. Gotta go back and
look again.


It is 3/8-16... Did I miss something here?

LLoyd
============
Indeed it is, but thats not the adapter I have. I got one that
came with the Emco [made in Austria], which is metric and had the
long metric SHCS [drawbar].

As a point of interest, Little Machine Shop has blank 2MT draw
bar arbors for making up special tooling such as gear tooth
cutters [like a fly cutter but the tool is at right angles to the
adapter axis]. Eliminates most of the fiddely work.

click on
http://littlemachineshop.com/product...2394&category=
also available in 3MT


Unka' George [George McDuffee]
============
Merchants have no country.
The mere spot they stand on
does not constitute so strong an attachment
as that from which they draw their gains.

Thomas Jefferson (1743-1826),
U.S. president. Letter, 17 March 1814.