Re: JT #2-1/2 means exactly that!

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Re: JT #2-1/2 means exactly that! Norm Dresner 03-12-2006
Posted by Norm Dresner on March 12, 2006, 10:03 am
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| FWIW I am going to call the rotating part of the drill press the
| spindle. The adaptor between the spindle and the chuck is the arbor,
| just so you are clear on what I am saying.
|

I have the exploded parts diagram in the instruction manual. There is
exactly one piece which runs down from the pulley to house the chuck. It is
a single piece of metal that the manufacturer calls the "spindle". There is
no separate arbor. If you doubt me, I'd be glad to scan the diagram and
e-mail it to you.

Norm


Posted by Trevor Jones on March 12, 2006, 12:05 pm
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Norm Dresner wrote:
>
> | FWIW I am going to call the rotating part of the drill press the
> | spindle. The adaptor between the spindle and the chuck is the arbor,
> | just so you are clear on what I am saying.
> |
>
> I have the exploded parts diagram in the instruction manual. There is
> exactly one piece which runs down from the pulley to house the chuck. It is
> a single piece of metal that the manufacturer calls the "spindle". There is
> no separate arbor. If you doubt me, I'd be glad to scan the diagram and
> e-mail it to you.
>
> Norm

Well, amigo, it looks like you are stuck with what you got, unless you
are willing to have at the spindle for putting a new taper on it.

If there is enough meat to it to put a Morse socket into it, that would
be the way to go, otherwise grinding the taper to the next nearest
Jacobs taper looks to be about the only option besides a new drill
press.

If you want to, scan the diagram and put it up in the dropbox at
www.metalworking.com where it can be accessed by all interested parties.
The instructions for using the dropbox are at the link "using he
dropbox" near the top of the page. The upside of that is that it may
come useful to someone down the road.

Cheers
Trevor Jones

Posted by Norm Dresner on March 13, 2006, 11:01 am
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| Norm Dresner wrote:
| > | I'm scanning it right now and I'll drop it in as a 3-page .PDF file
for
| > the
| > | whole manual.
| > |
| > | Norm
| > |
| >
| > Done. The manual is there under the name AMT 4030 Drill Press.
| >
| > Norm
| >
| Very intresting that they callit a Morse taper in the instalation
| instructions. ??????
| ...lew...

Yeah. We've commented on that before since it was the source of some
confusion. But the nameplate on the DP I have clearly says JT#2-1/2 and
I've concluded that at one time it may have been a MT but they never changed
the manual.

Norm


Posted by Norm Dresner on March 13, 2006, 11:04 am
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| Norm Dresner wrote:
|
| > Done. The manual is there under the name AMT 4030 Drill Press.
| >
| > Norm
|
| We shoulda got that done right in the beginning. Sure would have saved
| some back and forth.
|
| Nice size scan, by the way, clear enough to read and still fast to get
| on cruddy dialup.
|

FWIW, I have a Canon 9950F scanner with ScanSoft OmniPage SE 2.0 which was
used to create a Word version of the document which I then threw into
Acrobat 7.0 to make the PDF. I'd guess that the conversion to text done at
the start of this is responsible for keeping the size down.

Norm


Posted by Tom on March 13, 2006, 2:16 pm
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Trevor Jones wrote:
>
> Norm Dresner wrote:
>
> > Done. The manual is there under the name AMT 4030 Drill Press.
> >
> > Norm
>
> We shoulda got that done right in the beginning. Sure would have saved
> some back and forth.
>
> Nice size scan, by the way, clear enough to read and still fast to get
> on cruddy dialup.
>
> I wonder if that really is a section of a morse taper that they used on
> the spindle. Doesn't much matter, as it seems unlikely that there are
> any chucks available to fit it as is.
>
> As I said before, the amount of runout you say is present is an awful
> lot less than I would expect to find on a small drill press, and I doubt
> I would have been doing anything about it without some compelling
> reason, like a munged up chuck.
>
> Got a lathe and a toolpost grinder? Know anyone that has a tool and
> cutter grinder or cylindrical grinder?
>
> To the makers credit, they built a nut in to remove the chuck with. Too
> bad they could not see fit to use a standard size chuck mount.
>
> Cheers
> Trevor Jones

LOL! Norm still trolling? I told him a couple of weeks ago
that he has a drill with a Din standard chuck mount, which
incidentally uses a shortened version of the Morse Taper.

Tom

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