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PCB Drilling High RPM

PCB Drilling High RPM

2011-02-26 by Bertho Boman

Abount 15 years ago I did a bunch of PCB drilling. I used a low-cost air-turbine. Often it goes on sale at Harbour Freight and similar places for under $50 and the RPM is about 50,000 if I remember corectly.

It is mounted on a linear slide and activated by an air cylinder. Sorry about the dirty appearance, it has been in storage since then.

(What did Yahoo do to the picture?? It was perfectly exposed) Any suggestions how to avoid Yahoo destroying the pictures?
Bertho

RE: [Homebrew_PCBs] PCB Drilling High RPM

2011-02-26 by Boman33

Sorry, I forgot to mention where the picture is.

See: Bertho's Album in this group.

Bertho

++++++++++++++++++++++++++++++++++++++++++

From: Bertho Boman Sent: Saturday, February 26, 2011 10:17
About 15 years ago I did a bunch of PCB drilling. I used a low-cost
air-turbine. Often it goes on sale at Harbour Freight and similar places for
under $50 and the RPM is about 50,000 if I remember corectly.

It is mounted on a linear slide and activated by an air cylinder. Sorry
about the dirty appearance, it has been in storage since then.

(What did Yahoo do to the picture?? It was perfectly exposed) Any
suggestions how to avoid Yahoo destroying the pictures?
Bertho



[Non-text portions of this message have been removed]

Re: PCB Drilling High RPM

2011-02-26 by jeremy

Do you have a part number for Harbour Freight?
Jeremy

Show quoted textHide quoted text
--- In Homebrew_PCBs@yahoogroups.com, "Bertho Boman" <boman33@...> wrote:
>
> Abount 15 years ago I did a bunch of PCB drilling. I used a low-cost air-turbine. Often it goes on sale at Harbour Freight and similar places for under $50 and the RPM is about 50,000 if I remember corectly.
>
> It is mounted on a linear slide and activated by an air cylinder. Sorry about the dirty appearance, it has been in storage since then.
>
> (What did Yahoo do to the picture?? It was perfectly exposed) Any suggestions how to avoid Yahoo destroying the pictures?
> Bertho
>

Re: PCB Drilling High RPM

2011-02-26 by jeremy

Show quoted textHide quoted text
--- In Homebrew_PCBs@yahoogroups.com, "Bertho Boman" <boman33@...> wrote:
>
> Abount 15 years ago I did a bunch of PCB drilling. I used a low-cost air-turbine. Often it goes on sale at Harbour Freight and similar places for under $50 and the RPM is about 50,000 if I remember corectly.
>
> It is mounted on a linear slide and activated by an air cylinder. Sorry about the dirty appearance, it has been in storage since then.
>
> (What did Yahoo do to the picture?? It was perfectly exposed) Any suggestions how to avoid Yahoo destroying the pictures?
> Bertho
>

Re: [Homebrew_PCBs] PCB Drilling High RPM

2011-02-26 by Randy S.

Is that the actual name for it ? I cant find it on the harborfreight website.

Randy





________________________________
Show quoted textHide quoted text
From: Boman33 <boman33@...>
To: Homebrew_PCBs@yahoogroups.com
Sent: Sat, February 26, 2011 10:53:07 AM
Subject: RE: [Homebrew_PCBs] PCB Drilling High RPM


Sorry, I forgot to mention where the picture is.

See: Bertho's Album in this group.

Bertho

++++++++++++++++++++++++++++++++++++++++++

From: Bertho Boman Sent: Saturday, February 26, 2011 10:17
About 15 years ago I did a bunch of PCB drilling. I used a low-cost
air-turbine. Often it goes on sale at Harbour Freight and similar places for
under $50 and the RPM is about 50,000 if I remember corectly.

It is mounted on a linear slide and activated by an air cylinder. Sorry
about the dirty appearance, it has been in storage since then.

(What did Yahoo do to the picture?? It was perfectly exposed) Any
suggestions how to avoid Yahoo destroying the pictures?
Bertho

[Non-text portions of this message have been removed]







[Non-text portions of this message have been removed]

Re: [Homebrew_PCBs] PCB Drilling High RPM

2011-02-26 by Charles R. Patton

I think he is talking about a "die grinder" as in:
http://www.harborfreight.com/1-8-eighth-inch-air-micro-die-grinder-47869.html
currently only $22.99. I have one of these, but never thought of using
for a board drill. Neat idea. Don't know how long it'll last -- I've
had mixed results with Harbor Freight tools. This one I've only used
maybe a total time of 1 hour or so. It turns fast, but torque is not
the best and I've never measured run out. Definitely want to keep it
lubricated with the air mister.
Regards,
Charles R. Patton

Randy S. wrote:
Show quoted textHide quoted text
>
>
> Is that the actual name for it ? I cant find it on the harborfreight
> website.
>
> Randy
>
> ________________________________
> From: Boman33 <boman33@... <mailto:boman33%40vinland.com>>
> To: Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com>
> Sent: Sat, February 26, 2011 10:53:07 AM
> Subject: RE: [Homebrew_PCBs] PCB Drilling High RPM
>
> Sorry, I forgot to mention where the picture is.
>
> See: Bertho's Album in this group.
>
> Bertho
>
> ++++++++++++++++++++++++++++++++++++++++++
>
> From: Bertho Boman Sent: Saturday, February 26, 2011 10:17
> About 15 years ago I did a bunch of PCB drilling. I used a low-cost
> air-turbine. Often it goes on sale at Harbour Freight and similar
> places for
> under $50 and the RPM is about 50,000 if I remember corectly.
>
> It is mounted on a linear slide and activated by an air cylinder. Sorry
> about the dirty appearance, it has been in storage since then.
>
> (What did Yahoo do to the picture?? It was perfectly exposed) Any
> suggestions how to avoid Yahoo destroying the pictures?
> Bertho
>
>
>
>

RE: [Homebrew_PCBs] PCB Drilling High RPM

2011-02-26 by Boman33

Yes, that is the type I am referring to in the URL below. Remember that I bought mine over 15 years ago so I obviously cannot comment on the quality of the current batch/brand.



Mine has been running for hours with proper lubrication without any problem. Note in my picture that I made an adapter to provide a separate air in and exhaust port.

Bertho



From: Charles R. Patton Sent: Saturday, February 26, 2011 14:20



I think he is talking about a "die grinder" as in:
http://www.harborfreight.com/1-8-eighth-inch-air-micro-die-grinder-47869.html
currently only $22.99. I have one of these, but never thought of using
for a board drill. Neat idea. Don't know how long it'll last -- I've
had mixed results with Harbor Freight tools. This one I've only used
maybe a total time of 1 hour or so. It turns fast, but torque is not
the best and I've never measured run out. Definitely want to keep it
lubricated with the air mister.
Regards,
Charles R. Patton

Randy S. wrote:
Show quoted textHide quoted text
>
>
> Is that the actual name for it ? I cant find it on the harborfreight
> website.
>
> Randy
>
> ________________________________
> From: Boman33 <boman33@... <mailto:boman33%40vinland.com> <mailto:boman33%40vinland.com>>
> To: Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com> <mailto:Homebrew_PCBs%40yahoogroups.com>
> Sent: Sat, February 26, 2011 10:53:07 AM
> Subject: RE: [Homebrew_PCBs] PCB Drilling High RPM
>
> Sorry, I forgot to mention where the picture is.
>
> See: Bertho's Album in this group.
>
> Bertho
>
> ++++++++++++++++++++++++++++++++++++++++++
>
> From: Bertho Boman Sent: Saturday, February 26, 2011 10:17
> About 15 years ago I did a bunch of PCB drilling. I used a low-cost
> air-turbine. Often it goes on sale at Harbour Freight and similar
> places for
> under $50 and the RPM is about 50,000 if I remember corectly.
>
> It is mounted on a linear slide and activated by an air cylinder. Sorry
> about the dirty appearance, it has been in storage since then.
>
> (What did Yahoo do to the picture?? It was perfectly exposed) Any
> suggestions how to avoid Yahoo destroying the pictures?
> Bertho





[Non-text portions of this message have been removed]