Digital BW, The Print

OK, I'll bite: what is a 3MK print?
...Ben

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Sarah Renkes"
<sagaface@...> wrote:
>
> ....by the beauty of my first successful 3MK print. Thanks to those
who helped [snip]
> 
> Sarah
>