Homebrew PCBs

Trying to figure how it works, I expect the hidden mandrel is the secret?

Do you have a video showing how to make the vias? I would be interested in good vias, but not willing to buy a "pig in a poke" type product.

Ken H.

--- In Homebrew_PCBs@yahoogroups.com, "cdvsmx5" <inquiry@...> wrote:
>
> Greetings. I have recently developed and released, Solder Resistant Mandrel Technology, Copper Foil Vias. Use to produce through hole, blind and buried vias at your workbench or kitchen table. It is a quick, easy, inexpensive, space saving, non-hazardous method to produce quality electrical and mechanical connections between top, interior and bottom conductive layers of multi-layer PCBs. Suitable for Hobby, R& D, Prototype and Limited Production Runs. 
> More information here:
> http://DiyPcbVias.com
>