Homebrew PCBs

OT warning....

On Fri, Jul 27, 2012 at 10:39 AM, Bob Butcher <bbutcher85@yahoo.com> wrote:

> I am no t sure about the best cutter, but have an almost free solution to the problem. I have been using a homemade cutter for PCBs recently, and it works fairly well. I have a number of solid carbide PCB drills that have broken, leaving a 1/8" diameter carbide drill rod about 1" long. I chucked these in my lathe and used an angle grinder with abrasive blade to grind a point on the end of the rod.

I have been told that carbide dust is quite dangerous.  Are these
concerns overblown?  Do you take precautions?

-p.