I bought one of the Lee-Valley low angle block planes a year or so back.
In general, I'm very happy with it but lately I've started to have an
interesting problem with it.
I generally keep it set for a very small cut, with the blade just barely
sticking out and the mouth closed down to a sliver. What I've started
noticing lately is that after I've used it for a while, the mouth tends
to close down until there's no slot left at all (at which point it stops
cutting). I tighten up the mouth adjuster knob as tight as I can (by
hand), but it keeps slipping closed slowly.
Anybody seen this before?
I've had a similar problem with block planes before, but I finally
realized that I was causing the problem with how I gripped the plane.
If you put your index finger on the knob, it's possible in use to
actually loosen the knob.
If that's not the case, you should contact Lee Valley. They have
such oustanding customer service that I'm sure they can figure out a way
Hmmm. Interesting thought, and that may indeed be exactly what I'm
doing. But, isn't that what the knob is there for? It's even got a
nice index-finger-tip-sized depression machined into the top of it to
encourage such use.
Yes, it is the best pace for your index finger to go (and I assume
it is intended that way). You just need to be aware of the fact that
you can wind up torquing it enough to loosen it. Play around with
your grip and notice what your finger does when it's in position.
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