Homebrew PCBs

Harvey,

By drilling from above I just hold the board steady with one hand. I do use
two hands to move it into position because I'm not all that coordinated. 

Drilling from below sounds VERY promising since you have such a clear view
of the process. But these side issues sure complicate the machine.

Rick

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of Harvey White
Sent: Wednesday, January 02, 2013 7:30 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] circuit board drilling question

On Wed, 2 Jan 2013 06:33:41 -0700, you wrote:

>I can see how holding the board down with the drill coming up through 
>it would be a problem.

So can I.   The approach was to use a vacuum, but there are mechanical
problems, as in not enough suction at the moment.  I have more mechanical
work to do.  Sadly enough, the microprocessor, drill, mechanical work to get
it to go up and down properly, all that lovely stuff was relatively trivial.

Another option might be a clamping foot or bar.  Problem is that it would
cause some vibration, and that might move the board.

Harvey

>
>Rick
>
>-----Original Message-----
>From: Homebrew_PCBs@yahoogroups.com 
>[mailto:Homebrew_PCBs@yahoogroups.com]
>On Behalf Of Harvey White
>Sent: Tuesday, January 01, 2013 9:47 PM
>To: Homebrew_PCBs@yahoogroups.com
>Subject: Re: [Homebrew_PCBs] circuit board drilling question
>
>On Tue, 1 Jan 2013 20:55:39 -0700, you wrote:
>
>>Has anyone played with putting a high intensity LED pointing up 
>>through the drill press table so it would be easier to see the circuit 
>>board land before drilling?
>
>I've played with a TV camera pointing up (in my case, down) at the PC 
>board with a pair of cross hairs on the monitor.  The drill moves 
>upwards.  Main problem is a good method to hold the board down.
>
>Harvey
>
>>
>> 
>>
>>Rick
>>
>>
>>
>>[Non-text portions of this message have been removed]
>
>
>
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