"William Bagwell" wrote in message
...
Need shallow grooves in wood, *lots* of shallow grooves in lots of wood.
At
least 48 in each side of dozens of 16 X 24" pieces of plywood and almost
as
many boards grooved on only one side.

Remote possibility this will become a recurring need and I will be able to
afford machinery and or custom tooling to make this easy. For now I'm
doing a
limited run of prototypes and could resort to cutting them one by one with
a
circular saw. Perhaps even two at a time with two blades in a table saw.
But
where is the fun in that?

Have access to an old 6" jointer and think modifying the knives with a
series
of flats leaving a row of cutting tips spaced approximately 1/2" apart
*might*
just work. Cutting at least 12 grooves in one pass.

Looking for ideas that are better than just goobering up a set of jointer
knives with a hand held abrasive blade. Have no free access to a surface
grinder or any machine shop equipment more sophisticated than a worn out
drill-mill combo.

BTW these grooves need to be slightly rough. While I want to avoid
splinters
extremely smooth groves are not what I need or want. Nor do I want any
radius
at the top or bottom of the grooves. This would defeat the whole purpose
of
having grooves for the bats little toenails to grip
--
William

If the volume is high enough, get a quote from a moulding company. If you
like I can get a quote from one of my block suppliers that has a knife lab.
IF the volume is there.