Custom taps and dies

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Subject Author Date
Custom taps and dies Charles V. Craig 04-29-2006
Posted by Robert Swinney on April 29, 2006, 11:43 am
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OoPPs, sorry for the triple post. My PC has a screw in it I made the tap
for.

Bob Swinney
> Hmmmnnn . . . you'd think a millwright, or a millwright's relative would
> have a better description than "oddball". Justgoestoshowya, he thinks we
> are not only magicians, but mind readers as well.
>
> Bob Swinney
>
> PS: FWIW taps can be made by anyone with a screw cutting lathe and some
> drill rod. Dies are a little more complicated, but doable. It's a
> "chicken and egg" thing. First you make the tap and then use the tap to
> make the die, etc.
>
>> Oddball..., as in shape? Thread? Material?
>> JR
>> Dweller in te cellar
>>
>> Charles V. Craig wrote:
>>>
>>> Hi everybody,
>>>
>>> Does anyone in this NG make custom taps and dies? My cousin ( a
>>> millwright) is looking for some odd-ball taps and dies for work. He
>>> isn't computer literate, which is why I got tasked with searching
>>> online :)
>>>
>>> Cheers,
>>>
>>> CVC
>>
>>
>> --
>> --------------------------------------------------------------
>> Home Page: http://www.seanet.com/~jasonrnorth
>> If you're not the lead dog, the view never changes
>> Doubt yourself, and the real world will eat you alive
>> The world doesn't revolve around you, it revolves around me
>> No skeletons in the closet; just decomposing corpses
>> --------------------------------------------------------------
>> Dependence is Vulnerability:
>> --------------------------------------------------------------
>> "Open the Pod Bay Doors please, Hal"
>> "I'm sorry, Dave, I'm afraid I can't do that.."
>
>



Posted by =?ISO-8859-1?Q?Nick_M=FCller?= on April 29, 2006, 7:14 pm
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> He's looking for a metric tapdie pair, which is "M32x1.25".
> I'm guessing that means 32mm x 1.25 mm?
>
> Any idea as to cost?

The M32 * 1.5 (they don't list 1.25) costs (sit down) 147.- EUR. That
are about $180. Oh, there's a cheaper one for 85.- EUR.
The die costs 75.- EUR.

Nick
--
Motor Modelle // Engine Models
<http://www.motor-manufaktur.de>
DIY-DRO // Eigenbau-Digitalanzeige
<http://www.yadro.de>

Posted by Charles V. Craig on April 30, 2006, 6:49 am
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On Sun, 30 Apr 2006 01:14:37 +0200, muellernick@gmx.de (Nick Müller)
wrote:

>
>> He's looking for a metric tapdie pair, which is "M32x1.25".
>> I'm guessing that means 32mm x 1.25 mm?
>>
>> Any idea as to cost?
>
>The M32 * 1.5 (they don't list 1.25) costs (sit down) 147.- EUR. That
>are about $180. Oh, there's a cheaper one for 85.- EUR.
>The die costs 75.- EUR.
>
>Nick


Holy crap, I don't think he's gonna like that :)

Thank you, Nick. I'll pass that along.



Cheers,

CVC

Posted by Gary A. Gorgen on April 29, 2006, 11:25 am
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Charles V. Craig wrote:
>
> Hi everybody,
>
> Does anyone in this NG make custom taps and dies? My cousin ( a
> millwright) is looking for some odd-ball taps and dies for work. He
> isn't computer literate, which is why I got tasked with searching
> online :)
>
> Cheers,
>
> CVC

I made a "W-48" form tap yesterday.
Does that qualify as obb-ball?

There are many places that make custom taps.
I haven't looked, but will in the future.
I don't believe they are too expensive.

--
Gary A. Gorgen | "From ideas to PRODUCTS"
tunxis@comcast.net | Tunxis Design Inc.
| Cupertino, Ca. 95014

Posted by Mark Rand on April 29, 2006, 6:00 pm
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>
>
> Hi everybody,
>
> Does anyone in this NG make custom taps and dies? My cousin ( a
>millwright) is looking for some odd-ball taps and dies for work. He
>isn't computer literate, which is why I got tasked with searching
>online :)
>
> Cheers,
>
> CVC

To be honest, I would expect a millwright to know how to make one-off taps
and dies as a matter of course.

For taps:-
Take tool steel of choice. Starting with square section makes life easier.
Turn desired thread on it. Turn a pilot and/or taper. Cut flutes using a mill
or shaper (I used a shaper) then harden steel or harden steel then cut flutes
with a surface grinder.

For crude dies:-
Take tool steel of choice. Drill holes to make flutes. Bore hole for core
diameter. Boring a pilot can help with alignment. Tap or single point thread.
Turn taper with cross-slide. Harden.

It works.

Mark Rand
RTFM

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