Pick up only, in Carlisle MA. Within the next week or so.

This is the ubiquitous tapper that everybody sells under their own
label. E.g.:
http://littlemachineshop.com/product...ProductID=2539

With adapters. Minor superficial scuffing and rust.

Bob

On 1/1/2015 9:36 AM, Bob Engelhardt wrote:
Pick up only, in Carlisle MA. Within the next week or so.

This is the ubiquitous tapper that everybody sells under their own
label. E.g.:
http://littlemachineshop.com/product...ProductID=2539

With adapters. Minor superficial scuffing and rust.

Bob
Hi, Bob.
The hand tapper is one of the things I made when I first got my Prazi
lathe with milling attachments. The base is an old chemistry lab stand
with an aluminum plate on top of base. That has "T" slots in it. Turned
a new vertical steel shaft and machined the horizontal arm from a block
of aluminum from Boeing Surplus. The rotating shaft is from a Mercedes
Benz shock absorber. Tap holder is standard hand tap holder drilled and
tapped to screw onto MB rod.

I think I use it once every 10years. Nice to look at, but mostly takes
up room.

My youngest brother lives in Dillsburg and I would send him over to pick
it up, but he wouldn't know what to do with it.

Happy new year from Oregon.

Paul

On Thu, 01 Jan 2015 12:06:21 -0800, Paul Drahn
wrote:

On 1/1/2015 9:36 AM, Bob Engelhardt wrote:
Pick up only, in Carlisle MA. Within the next week or so.

This is the ubiquitous tapper that everybody sells under their own
label. E.g.:
http://littlemachineshop.com/product...ProductID=2539

With adapters. Minor superficial scuffing and rust.

Bob
Hi, Bob.
The hand tapper is one of the things I made when I first got my Prazi
lathe with milling attachments. The base is an old chemistry lab stand
with an aluminum plate on top of base. That has "T" slots in it. Turned
a new vertical steel shaft and machined the horizontal arm from a block
of aluminum from Boeing Surplus. The rotating shaft is from a Mercedes
Benz shock absorber. Tap holder is standard hand tap holder drilled and
tapped to screw onto MB rod.

I think I use it once every 10years. Nice to look at, but mostly takes
up room.

My youngest brother lives in Dillsburg and I would send him over to pick
it up, but he wouldn't know what to do with it.

Happy new year from Oregon.

Paul

I use mine (original machine..not the clone) regularly..at least 1x a
week, some weeks a lot more.

Someone will be very happy with that!!

Gunner

"At the core of liberalism is the spoiled child,
miserable, as all spoiled children are, unsatisfied,
demanding, ill-disciplined, despotic and useless.
Liberalism is a philosophy of sniveling brats."
PJ O'Rourke

On Thursday, January 1, 2015 9:36:47 AM UTC-8, Bob Engelhardt wrote:
Pick up only, in Carlisle MA. Within the next week or so.

This is the ubiquitous tapper that everybody sells under their own
label. E.g.:
http://littlemachineshop.com/product...ProductID=2539

With adapters. Minor superficial scuffing and rust.

Bob


When you have one of these to give away let me know:

http://servoproductsco.com/specs/dp_brochure.pdf

On Thursday, January 1, 2015 8:35:16 PM UTC-5, jon_banquer wrote:


When you have one of these to give away let me know:

http://servoproductsco.com/specs/dp_brochure.pdf

If you run across one on the east coast , let me know.

I bought a second hand 16 speed bench Harbor Freight drill press, and was pleasantly surprised to find that it is true enough to drill holes in PCB with small carbide drill bits. It does not have the desired RPM , but it still worked abet slowly.

I have seen articles where people mounted a air driven micro die grinder in a drill press for drilling PCB.

Dan

" fired this volley in
:

I bought a second hand 16 speed bench Harbor Freight drill press, and
was pleasantly surprised to find that it is true enough to drill holes
in PCB with small carbide drill bits. It does not have the desired
RPM , but it still worked abet slowly.

I have seen articles where people mounted a air driven micro die
grinder in a drill press for drilling PCB.

If you're hand-drilling, you're probably better off having the rpms lower
than optimum for carbide PCB bits. When working at "full speed", they
need to take a full chip all the way through glass boards, or they'll
dull quickly. At lower speeds, at least you can see and feel what the
cut increment is. If they dawdle in the hole, you're screwed.

I worked around an automated 'peck' driller at a GE facility a LONG time
ago. (not on it, just around it ). It spun the drills at around 120K,
and pecked about 10 holes per second (depending upon how many layers of
stock were clamped on the table). It sounded almost like a LOUD paper
tape reader of old. Most of the time was spent moving to the next hole;
the spindle plunged so fast all you could see was a blur and curls flying
up the vacuum hose.

Lloyd

On Fri, 2 Jan 2015 07:17:24 -0800 (PST), "
wrote:

true enough to drill holes in PCB with small carbide drill bits.

Anybody need PCB carbide bits...in trays of 50....I have about 10 or
more trays

Gunner

"At the core of liberalism is the spoiled child,
miserable, as all spoiled children are, unsatisfied,
demanding, ill-disciplined, despotic and useless.
Liberalism is a philosophy of sniveling brats."
PJ O'Rourke

Gunner Asch wrote:
On Fri, 2 Jan 2015 07:17:24 -0800 (PST), "
wrote:

true enough to drill holes in PCB with small carbide drill bits.

Anybody need PCB carbide bits...in trays of 50....I have about 10 or
more trays

Gunner

"At the core of liberalism is the spoiled child,
miserable, as all spoiled children are, unsatisfied,
demanding, ill-disciplined, despotic and useless.
Liberalism is a philosophy of sniveling brats."
PJ O'Rourke

Used to see the mixed size re-sharpened ones at hobby shows. Don't see
all that many now. They work great in my dremel press.


--
Steve W.

On 01/02/2015 10:34 AM, Gunner Asch wrote:

Anybody need PCB carbide bits...in trays of 50....I have about 10 or
more trays


Are you referring to those tiny bits like dental burrs?

A flea market find Allcraft engraver I have chucks dental burrs,
so....



technomaNge
--
Anybody want some free dental care?

On Sat, 03 Jan 2015 09:44:27 -0600, technomaNge
wrote:

On 01/02/2015 10:34 AM, Gunner Asch wrote:

Anybody need PCB carbide bits...in trays of 50....I have about 10 or
more trays


Are you referring to those tiny bits like dental burrs?

A flea market find Allcraft engraver I have chucks dental burrs,
so....



technomaNge

???

They dont take side loading very well unless you have a very gentle
hand.

You need some?

Gunner

"At the core of liberalism is the spoiled child,
miserable, as all spoiled children are, unsatisfied,
demanding, ill-disciplined, despotic and useless.
Liberalism is a philosophy of sniveling brats."
PJ O'Rourke

On Sat, 03 Jan 2015 14:31:02 -0800, Gunner Asch
wrote:

On Sat, 03 Jan 2015 09:44:27 -0600, technomaNge
wrote:

On 01/02/2015 10:34 AM, Gunner Asch wrote:

Anybody need PCB carbide bits...in trays of 50....I have about 10 or
more trays


Are you referring to those tiny bits like dental burrs?

A flea market find Allcraft engraver I have chucks dental burrs,
so....
technomaNge

mage, those I got from Gunner are 1.5" OAL, .7 long by .125 dia shank.
cutters vary from 0.000 to 0.125. The 0.000 is shorter, too, because
I broke it during a drop to the cement.

--
All I want is a warm bed,
a kind word, and
U N L I M I T E D P O W E R !
--anon

On 01/03/2015 09:20 PM, Larry Jaques wrote:

mage, those I got from Gunner are 1.5" OAL, .7 long by .125 dia shank.
cutters vary from 0.000 to 0.125. The 0.000 is shorter, too, because
I broke it during a drop to the cement.


Thanks for the info, Larry.
At .125 dia, they are Dremel tool size. My engraver takes the little
bits like your dentist uses, I'm guessing .0625 or 1/16th.

Thanks, Gunny. I'll pass.



technomaNge
--
Rats and phooie!

On 1/3/2015 9:20 PM, Larry Jaques wrote:

mage, those I got from Gunner are 1.5" OAL, .7 long by .125 dia shank.
cutters vary from 0.000 to 0.125. The 0.000 is shorter, too, because
I broke it during a drop to the cement.

Don't you need infinite RPM for a .000" bit?

David

On Sunday, January 4, 2015 8:56:16 AM UTC-5, David R. Birch wrote:

Don't you need infinite RPM for a .000" bit?

David

For a .000 bit you don't even have to rotate it. It will just push through the material.

Force / Area = Pressure Force / 0 = Infinity

Dan

On 1/4/2015 1:08 PM, wrote:
On Sunday, January 4, 2015 8:56:16 AM UTC-5, David R. Birch wrote:

Don't you need infinite RPM for a .000" bit?

David

For a .000 bit you don't even have to rotate it. It will just push through the material.

Force / Area = Pressure Force / 0 = Infinity

Dan

Nope, division by zero is undefined, not infinity.

A spindle turning at infinite RPM requires bearings made of an
unobtainium alloy.

David

On Sun, 04 Jan 2015 13:47:49 -0600, "David R. Birch"
wrote:

On 1/4/2015 1:08 PM, wrote:
On Sunday, January 4, 2015 8:56:16 AM UTC-5, David R. Birch wrote:

Don't you need infinite RPM for a .000" bit?

David

For a .000 bit you don't even have to rotate it. It will just push through the material.

Force / Area = Pressure Force / 0 = Infinity

Dan

Nope, division by zero is undefined, not infinity.

A spindle turning at infinite RPM requires bearings made of an
unobtainium alloy.

David

Quantum tunnelling. Just get your timing right. d8-)

--
Ed Huntress

On 01/04/2015 01:47 PM, David R. Birch wrote:

Nope, division by zero is undefined, not infinity.

A spindle turning at infinite RPM requires bearings made of an
unobtainium alloy.



Dunno where to get unobtainium, but Rocky and Bullwinkle
usta get upsie-daisyium in Frostbite Falls.



technomaNge
--
Watch me pull an obscure reference outa my hat!

On 1/4/2015 2:06 PM, Ed Huntress wrote:
On Sun, 04 Jan 2015 13:47:49 -0600, "David R. Birch"
wrote:

On 1/4/2015 1:08 PM, wrote:
On Sunday, January 4, 2015 8:56:16 AM UTC-5, David R. Birch wrote:

Don't you need infinite RPM for a .000" bit?

David

For a .000 bit you don't even have to rotate it. It will just push through the material.

Force / Area = Pressure Force / 0 = Infinity

Dan

Nope, division by zero is undefined, not infinity.

A spindle turning at infinite RPM requires bearings made of an
unobtainium alloy.

David

Quantum tunnelling. Just get your timing right. d8-)

Tell about it, the last time I tried it, I was just a smidgen off in my
settings and ended up in mauve decade Austria trying to arrange a New
York art school scholarship for a young Herr Hitler. I snapped back to
here and now (approximately) before I got it set up.

Although in this reality, many people think Oswald shot JFK...

Reality can be so subjective. At least this one has Philip K. Dick.

David

"David R. Birch" fired this volley in
:

Don't you need infinite RPM for a .000" bit?

Yeah, but any 'good' Chinese electrical tools/appliance company will
OFFER you a spindle that can go infinity+100 rpms.

"You jus' pay 50 puh-cen deposit on 40' containah, an you pay rest latah,
and we ship containah."

They'll build a Conex box-full of anything with a 50% deposit. Now...
when the container hits CONUS, there might be a _small_ variance in the
rpms from the specs (but nothing more than about -100%). When you
complain, "Ahh, factory make problem, but "we make bedda nex time! Oh,
NO REFUND! We make next containah foah big discount!"

Lloyd