Removal of Morse Taper Mounted Chuck

In article <[email protected]>,
Larry W <[email protected]> wrote:
> Joe, I must respectfully disagree with your observation on repetitive
> mounting & unmounting of Morse tapers. A properly machined taper on the
> appropriate type of steel can be inserted and removed without damage.
> Witness that years ago, larger sizes of drill bits were common that had
> The male Morse taper formed direcly on the shank. I haven't seen these
> used much in recent years, but they were made to be installed and removed
> as required.

I thought that for a moment then thought "hang on, he's talking about a
Jacobs taper not a morse taper", there are undoubted differences.

Drills with a morse taper shank are still very common and easily available
though mostly you will see then in sizes over 1/2". My own drill press
has a No1 Morse taper up the spindle and, though it normally has a chuck
mounted to take standard parallel shank drills, I have a set of drills
from 1/8" to 1/2" with a No1 Morse taper shank.

All tapers require proper care in their use, of course.

--
Stuart Winsor

Midland RISC OS show - Sat July 9th 2011

http://mug.riscos.org/show11/MUGshow.html

> http://www.youtube.com/watch?v=3DrJ3jyEbcse4
>
> I'm working on a bunch of "how to" videos. =A0Any tips from those who use=
such
> machines? =A0This was one of our first tries a few months back...

Joe,

This is was great. However, my drill press - Delta 17-965, does NOT
have a slot in the chuck column for a drift pin. Is there any other
device I can use
to get the chuck out?

Good short, to the point video. The sound is a bit "rough" though. You
should perhaps invest in a good label mike.

MJ

"Larry W" <[email protected]> wrote in message
news:[email protected]...

> You are right, of course, I misunderstood your first post.

No worries!
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com
Production Tapping: http://Production-Tapping-Equipment.com/
Flagship Site: http://www.Drill-N-Tap.com
VIDEOS: http://www.youtube.com/user/AutoDrill
TWITTER: http://twitter.com/AutoDrill
FACEBOOK: http://www.facebook.com/AutoDrill

V8013-R

Joe, I must respectfully disagree with your observation on repetitive
mounting & unmounting of Morse tapers. A properly machined taper on the
appropriate type of steel can be inserted and removed without damage.
Witness that years ago, larger sizes of drill bits were common that had
The male Morse taper formed direcly on the shank. I haven't seen these
used much in recent years, but they were made to be installed and removed
as required.

BTW, if you need to remove a chuck from either the jacobs taper or the
morse taper and don't have the proper tools, a make-do is to chuck a
large rod or allen wrench or similar in the chuck and start tapping on it
sideways, rotation and striking it from all angles. After about 5 minutes
or less, the chuck will fall off. Cheaper presses with the Jacobs taper
machined directly in the end of the shaft will of couse separate there.
With machines that use a morse/jacobs mandrel, _usually_ the Morse taper
will separate first.

In my experience, a sure fire way to get a chuck to fall off a drill
press is to put an endmill in it, clamp a cross-slide vise to the table,
and try to mill something in steel. Almost guaranteed to make the taper
separate before you finish!



--
There are no stupid questions, but there are lots of stupid answers.

Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org

In article <[email protected]>,
Joe AutoDrill <[email protected]> wrote:
<...snipped...>
>Larry,
>
>Re-read my post. Morse tapers can be removed and re-installed all day long.
>no issues as long as you clean 'em and don't abuse them. Not so true of
>Jacobs Tapers though... And the Jacobs is the type I was referring to when
>I said it's not a good idea.
>
>My larger AutoDrill unit has a female MT2 shank because MT2 tools are
>available... and because MT2 tools with a draw bar are available. It's an
>excellent mount.

You are right, of course, I misunderstood your first post.

:wq





--
The best argument against democracy is a five-minute conversation
with the average voter. (Winston Churchill)

Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org

"Larry W" <[email protected]> wrote in message
news:[email protected]...
> Joe, I must respectfully disagree with your observation on repetitive
> mounting & unmounting of Morse tapers. A properly machined taper on the
> appropriate type of steel can be inserted and removed without damage.
> Witness that years ago, larger sizes of drill bits were common that had
> The male Morse taper formed direcly on the shank. I haven't seen these
> used much in recent years, but they were made to be installed and removed
> as required.


Larry,

Re-read my post. Morse tapers can be removed and re-installed all day long.
no issues as long as you clean 'em and don't abuse them. Not so true of
Jacobs Tapers though... And the Jacobs is the type I was referring to when
I said it's not a good idea.

My larger AutoDrill unit has a female MT2 shank because MT2 tools are
available... and because MT2 tools with a draw bar are available. It's an
excellent mount.
--


Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com
Production Tapping: http://Production-Tapping-Equipment.com/
Flagship Site: http://www.Drill-N-Tap.com
VIDEOS: http://www.youtube.com/user/AutoDrill
TWITTER: http://twitter.com/AutoDrill
FACEBOOK: http://www.facebook.com/AutoDrill

V8013-R

(top posted for easy reading this time - forgive me if this offends you...)

MJ,

All Delta 17-965 series have J3 Jacobs tapers as far as I know.

Other Delta drill presses with similar tapers are: 11-280, 11-090, 11-990,
15-660, 17-990

You need a wedge set to remove those and here are the basic directions:

http://www.jacobschuck.com/drill-chuck-install.asp

Here is the wedge set you would need to purchase:

http://www.mcmaster.com/29225A36

...You want to get at least one, possibly two sets of item 29225A36.

Before you remove it, you should consider these facts:

1. Jacobs Taper machines are more "fragile" in that you can't keep taking
off the chuck and replacing it for very long. Sooner or later, the tapers
become too "worked" to stay together well and your chuck will either fall
off or worse, spin and mark the surfaces up beyond repair. Some will use
find sandpaper to "rough up" the surfaces for a second or two prior to
cleaning and re-installation. To give you some idea how I view these
tapers, my mid-size AutoDrills have a Jacobs J33 taper. I hydraulically
press the chucks on and call them permanent mounts. Nobody gets them off
without damaging something. If they need to change the chuck, they must send
the spindle to me or buy a new spindle and chuck. It's not meant to be a
convenient mount for swapping out chucks.

2. If you do decide to remove it, grind the tips of those wedges sharp so
they engage better. Once the chuck is off and you are ready to mount the new
device, clean both surfaces with a strong solvent that does not leave a
film. I personally use acetone as it is quick drying and generally leaves
so little film that it doesn't matter. Whack it onto that taper with gusto
but not so hard that you damage the spindle or bearings. We use a 3# rubber
face hammer and go at it like Babe Ruth when we can't access the hydraulic
press.

...E-mail me and I'll send you a portion of my drill's manual in PDF format.
(anyone can request actually... I don't mind sending it out.)

As for the sound quality... Yep. I'm using a handheld digital camera
(photo camera) so a digital video camera is on my short list of purchases...
This camera doesn't have the ability to accept an external mic.

Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills: http://www.AutoDrill.com
Multiple Spindle Drills: http://www.Multi-Drill.com
Production Tapping: http://Production-Tapping-Equipment.com/
Flagship Site: http://www.Drill-N-Tap.com
VIDEOS: http://www.youtube.com/user/AutoDrill
TWITTER: http://twitter.com/AutoDrill
FACEBOOK: http://www.facebook.com/AutoDrill

V8013-R


<[email protected]> wrote in message
news:[email protected]...

> http://www.youtube.com/watch?v=rJ3jyEbcse4
>
> I'm working on a bunch of "how to" videos. Any tips from those who use
> such
> machines? This was one of our first tries a few months back...

Joe,

This is was great. However, my drill press - Delta 17-965, does NOT
have a slot in the chuck column for a drift pin. Is there any other
device I can use
to get the chuck out?

Good short, to the point video. The sound is a bit "rough" though. You
should perhaps invest in a good label mike.

MJ