Re: Leadscrews, PCB router experiment, ZPLOT Isolation

Thanks Ron,

That covers the drilling, The engraver 'V' bit is to MILL isolation
traces in the PCB material. This is apparently harder! I'm hoping the
drilling (under CNC control) is the EASY part!

Ztrace Isolation is now at:

http://www.ddt-us.com/

And has a new vers out. You can download a demo. Anyone have comments
on this new version?

Alan KM6VV


Ron Yost wrote:

>
> At 11:52 AM 7/23/01 , you wrote:
> >Hi Bob,
> >
> >I haven't done ANY yet! I bought an engraver 'V' bit, and I'm hoping to
> >use that.
>
> Why not use printed-circuit drill bits (solid carbide) that are made
> for the job? They're available surplus, re-sharpened.
>
> The bits are very fragile and will 'snap' without warning if they're
> not fed pretty much exactly straight in. Plan on breaking a few. :)
>
> PCB material is fairly abrasive and tough on bits.
>
> I've hand-drilled a few hundred holes in PCB's using the Dremel and
> its 'drill press'. It's not so hard, -if- you leave the 'blank' center
> spot in all pads. That will 'center' the drills just fine.
>
> Also, please wear a face mask. It's nasty dust to breathe.
>
> Ron Yost
>
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