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Homebrew PCBs

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Message

Re: drilling the holes?

2005-10-20 by bob_ledoux

--- In Homebrew_PCBs@yahoogroups.com, "prashantfordwivedi"
<prashantfordwivedi@y...> wrote:
>
> hi to all group members can u suggest me any simple & cheap method 
> for drilling my home made pcb's

I use a cheap Harbor Freight $39 drill press.  It has lots of runout.

From Enco I purchased a microdrill chuck for $7.50 and 1/32 drill bits
by the dozen at $0.22 each.  This combination makes a spinning drill
with lots of runout.

I design my boards so the center of each drill hole is etched.  This
creates a starting point for a wobbly drill.  The drill centers on
this hole and does its work cleanly.  I replace the cheap bit when it
gets dull.

A head mounted magnifier, bought for $8, provides a closeup view of
the procedings. 

For the occasional builder this is a nice system.  You can spend lots
of money and time trying to get a "no-runout" system to use carbide
bits.  I decided to just forget about them.
>

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