Re: Semiautomatic PCB Drilling Machine Update

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Yahoo" <yahoo@...> wrote:

>
> The machine will store the delta between the drill and camera
>cross-hair, and move into position for each drilling cycle, then
>return the the view position.

We all have bad days and this was one of mine, why did I think you
needed to see the drill bit!!!! all you need is an accurate offset and
that is very easy to do.

> I got the idea from the Kulicke & Soffa wire bonding machines I
>maintained at my job in 1979-80. For each silicon die the operator
>would target a pair of bonding pads at opposite corners of the die,
>and the machine would automatically calculate the relative positions
>of all the other pads, taking into account rotation.

I've been giving a lot of thought to wire bonding machines recently,
for the production of super small dead bug style radio receivers (sub
half gram). This technique could work really well for that.

Graham