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Drilling question

Drilling question

2003-02-05 by Adam Schabtach

Question for those of you who have drilled Stoge panels with a drill press:
is it still advisable to center-punch the hole locations when using a drill
press, or is the bit not likely to walk? I guess it depends on how good my
drill press is, eh? :-)

Thanks--
--Adam

-- 
Adam Schabtach
adam@...
http://www.studionebula.com

Re: [motm] Drilling question

2003-02-05 by Kevin B

I just wanted to throw my $00.02 in here about drilling.� If you are getting ready to drill your Stooge panels (or any panel really), and you just so happen to have access to a machine shop equipped with a milling machine, use that instead of the drill press.� I found that a milling machine will make�a nice, perfectly round, clean hole with�almost no flash on the back side.� Also, they are usually more�precise than�most drill presses, and I have not yet needed to use a�center punch.� Another benefit is that the flash from the hole generally travels up the bit, away from what you are drilling, so you don't risk scratching your beautiful panel finish.� I'm not knocking drill presses, just if you happen to have a choice between the two, use the milling machine!� If you don't, then listen to Larry Hendry.

Kevin


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Re: [motm] Drilling question

2003-02-05 by J. Larry Hendry

I always center punch.  I use the Sears automatic punch with the red ball on
top.  MUCH easier and more accurate than the hammer method.
LH
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----- Original Message -----
From: Adam Schabtach <adam@...>
To: MOTM List <motm@yahoogroups.com>
Sent: Tuesday, February 04, 2003 6:32 PM
Subject: [motm] Drilling question


Question for those of you who have drilled Stoge panels with a drill press:
is it still advisable to center-punch the hole locations when using a drill
press, or is the bit not likely to walk? I guess it depends on how good my
drill press is, eh? :-)

Thanks--
--Adam

--
Adam Schabtach
adam@...
http://www.studionebula.com









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Re: [motm] Drilling question

2003-02-05 by Dave Hylander

At 05:32 PM 2/4/03 -0700, Adam Schabtach wrote:
>Question for those of you who have drilled Stoge panels with a drill press:
>is it still advisable to center-punch the hole locations when using a drill
>press, or is the bit not likely to walk? I guess it depends on how good my
>drill press is, eh? :-)

Definitely use a center punch.  After punching the locations, I put some 
masking tape on the face of the panel to protect it from the chips.  Then 
pilot drill with a 3/16" or so bit followed by finish size.  Use a cutting 
fluid if you have it.  A dab of liquid soap will work ok on aluminium.

Dave

Re: [motm] Drilling question

2003-02-05 by ixqy@aol.com

Hello,
 When I was drilling my Miniwave panel, I couldn't center the punch on the 
light bar holes. The LED holes were too small to see what I was doing. I got 
around this problem by using a large nail. Since the tip of the nail had a 
sharp point, I was able to make a small hole dead center at each LED 
position. The nail only makes a small hole in the panel surface, but it's 
just big enough to help center the punch afterwards.

 Andrew



In a message dated 2/4/03 7:49:00 PM Central Standard Time, 
david@... writes:

> At 05:32 PM 2/4/03 -0700, Adam Schabtach wrote:
>  >Question for those of you who have drilled Stoge panels with a drill 
press:
>  >is it still advisable to center-punch the hole locations when using a 
drill
Show quoted textHide quoted text
>  >press, or is the bit not likely to walk? I guess it depends on how good my
>  >drill press is, eh? :-)
>  
>  Definitely use a center punch.  After punching the locations, I put some 
>  masking tape on the face of the panel to protect it from the chips.  Then 
>  pilot drill with a 3/16" or so bit followed by finish size.  Use a cutting 
>  fluid if you have it.  A dab of liquid soap will work ok on aluminium.
>

Re: [motm] Drilling question

2003-02-05 by J. Larry Hendry

Kevin brings up some great points about the hazards of drilling.
Here are some drillin' tips I use (your mileage may vary)
I cover the front with masking tape. Don't mash it on hard, just enough to cover. It has saved me from scratching may circles around the hole from flash traveling up the bit.
After I finish a hole (say 1/4') I take a 3/8 bit and clean the burrs from the front and back of the hole. That's easy with a press, hard with a hand drill. Those of you who use my drilling services will notice this (especially on the backs where I often go deeper than required.
And I agree with Kevin, IF I had me one of them fancy milling machines, I'd probably never leave the garage.
:)
Larry
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----- Original Message -----
From: Kevin B
Sent: Tuesday, February 04, 2003 7:06 PM
Subject: Re: [motm] Drilling question

I just wanted to throw my $00.02 in here about drilling. If you are getting ready to drill your Stooge panels (or any panel really), and you just so happen to have access to a machine shop equipped with a milling machine, use that instead of the drill press. I found that a milling machine will make a nice, perfectly round, clean hole with almost no flash on the back side. Also, they are usually more precise than most drill presses, and I have not yet needed to use a center punch. Another benefit is that the flash from the hole generally travels up the bit, away from what you are drilling, so you don't risk scratching your beautiful panel finish. I'm not knocking drill presses, just if you happen to have a choice between the two, use the milling machine! If you don't, then listen to Larry Hendry.

Kevin


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Re: [motm] Drilling question

2003-02-05 by mate_stubb <mate_stubb@yahoo.com>

I'm probably too anal about it, but when I drill panels for folks I 
start with a center punch, then progress up through 5 bit sizes to 
keep the amount of metal being removed at any one time to a minimum. 
That way I don't have to tape the front.

When drilling MiniWave LED rows, I cheat - I had a steel template 
made that I can just clamp over the panel to ensure that the holes 
are lined up.

Moe
 
>>>>>
When I was drilling my Miniwave panel, I couldn't center the punch on 
the light bar holes. The LED holes were too small to see what I was 
doing. 
<<<<<

Re: [motm] Drilling question

2003-02-05 by Adam Schabtach

Thanks, everyone, for the drilling advice.
 
> When drilling MiniWave LED rows, I cheat - I had a steel template
> made that I can just clamp over the panel to ensure that the holes
> are lined up.

That's a good cheat. Getting those eight holes done is going to be
interesting. I figure I can use a fence to make sure that they're all in a
line, but getting them evenly spaced is going to be a delicate task.

All of this is a moot point for awhile, though. It's snowing here in
Colorado and the garage is too cold for operating a drill press. :-)

--Adam

-- 
Adam Schabtach
adam@...
http://www.studionebula.com

Re: Drilling question

2003-02-05 by echophazer <echophazer@aol.com>

--- In motm@yahoogroups.com, "mate_stubb <mate_stubb@y...>" 
<mate_stubb@y...> wrote:
> I'm probably too anal about it, but when I drill panels for folks I 
> start with a center punch, then progress up through 5 bit sizes to 
> keep the amount of metal being removed at any one time to a 
minimum. 
> That way I don't have to tape the front.
> 
> When drilling MiniWave LED rows, I cheat - I had a steel template 
> made that I can just clamp over the panel to ensure that the holes 
> are lined up.
> 
> Moe

If you want a good center punch check out this cool product:

http://www.ezlok.com/center.htm

You pop in a magnification lens with crosshairs. Line it up with your 
center. Pull out the lens, slide in the punch which shares the same 
centerline as the crosshairs and give it a tap with a hammer.

Unfortunately since I work in a metrology lab my standards of anal go 
well beyond .002" though. 

Peter

Re: [motm] Re: Drilling question

2003-02-05 by J. Larry Hendry

Wow !!  Now there something nice to have.   Are they expensive?  Of course,
if I used that on each of the 200+ panel holes I drilled Sunday, it might
have taken a little longer.  I like that part about "no skill required."  :)
Stooge Larry
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----- Original Message -----
From: <echophazer@...>
If you want a good center punch check out this cool product:

http://www.ezlok.com/center.htm

You pop in a magnification lens with crosshairs. Line it up with your
center. Pull out the lens, slide in the punch which shares the same
centerline as the crosshairs and give it a tap with a hammer.

Unfortunately since I work in a metrology lab my standards of anal go
well beyond .002" though.

Peter

Re: Drilling question

2003-02-06 by echophazer <echophazer@aol.com>

--- In motm@yahoogroups.com, "J. Larry Hendry" <jlarryh@i...> wrote:
> Wow !!  Now there something nice to have.   Are they expensive?  Of 
course,
> if I used that on each of the 200+ panel holes I drilled Sunday, it 
might
> have taken a little longer.  I like that part about "no skill 
required."  :)
> Stooge Larry
> 

This is another nice one:
http://www.precisionmeasure.com/tool9.htm

They cost anywhere between $50 to $90.

I kind of like this DIY optical center punch though:

http://www.nucleus.com/~harlan/punch.html

btw... the panels look great! Thank you.

Peter

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