Nova wrote:
Robatoy wrote:



One more try. Put a board...like a 2x4 in between the fence and the
guard. (Without cutter running... for safety)
Go to the front of the outfeed table and push back towards the infeed
table. The guard should bind the work piece against the fence. Should.
It is the whole point of the porkchop shape.

The design of the porkchop shape is to allow the guard to cover the
portion of the blades not being used when jointing varying width boards.
Its design has nothing to do with preventing kickback.

If you've tried running a board backwards through your jointer as you
suggest you'll see the guard offer absolutely no resistance. I've tried
it before I first suggested to you.

I think there are some limited circumstances where Rob's assertion will
be true (I just tried it to test my theory). If you're edge jointing a
relatively thin (say 4/4) board with the fence all the way retracted,
the guard will offer some amount of kickback protection, mainly because
the distance between the pivot point and the fence is maximized and
there is leverage present. As soon as the guard pivots further away
from the fence that leverage is lost.

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