Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Today's project was to see if I could cut v-scoring with a table saw.
I found an old steel plywood blade (no carbide to break off, lots of
teeth) and reground it to a V point:

∗ mount the blade backwards to avoid cutting your grinding wheels

∗ run the saw

∗ initial grind with an angle grinder

∗ use a 30-60-90 triangle to position a ginding stone for final grind.

GENTLE pressure is all that's needed, and very little actual grinding
time.

The result snapped cleanly and showed no signs of burning. Obvious
drawback is that plain steel will need sharpening more often, but it's
better than trying to resharpen a router bit or scrollsaw blade.

(yes, I know about metal shears, but I don't own one of those - yet)