HI Wayne, list,
I have 4 holes on a 4" x 3" rectangle (the corners), and one in the center.
I'm going to try and BOLT the board down to a sacrificial piece that has
been flycut flat in the mill. That should get me fairly flat and true.
We'll see.
Oh! You mentioned no plated through holes! I almost forgot about that!
I'll have to move a few via's then.
Alan KM6VV
>
> The URL below show the floating Z-head I developed for
> mechanical etching:
>
> <http://gramlich.net/projects/mill_lathe/index.html#The_Floating_Z_Head>
>
> The mechanical etching bits come from Think and Tinker:
>
> <snip>
> -Wayne
>