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Re: [Homebrew_PCBs] Re: Milling PCB's - how to line up both sides?

2003-12-16 by Tony Harris

Wow!

Thanks for the detailed response (was actually beginning to wonder if I was
the only one milling lol).  I'll have to figure out a way to convert that to
my mill.  I like the peg idea, just not sure how to implement it yet when
flipping the board around....  maybe drill a hole, flip the board and mount
that hole on a peg then drill another hole at 0 location.... hmmmmm.  Then
only real problem becomes re-aligning the mill after I use it for other
things...

At least now I have ideas :)  Thanks!!

-Tony
----- Original Message ----- 
From: <ballendo@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Tuesday, December 16, 2003 5:31 AM
Subject: [Homebrew_PCBs] Re: Milling PCB's - how to line up both sides?


> Tony,
>
> Commercial PCB mills (LPKF,T-Tech,etc) use two 1/8 dowel pins to
> locate the board on the mill. T-tech uses a 1/8 hole and 1/8 wide
> slot, while LPKF uses plastic "wavy" inserts into a larger slot. The
> plastic wavy insert has the hole for the 1/8 dowel pin. The wavy-ness
> allows it to "spring" against the table slot sides.
>
> Anyway, these "fixture" or "registration" holes are programmed, same
> as all the others. And drilled first.
>
[rest cut]

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