----- Original Message ----- From: "Ron Nossaman" <rnossaman at cox.net> To: "Pianotech List" <pianotech at ptg.org> Sent: Wednesday, February 20, 2008 5:24 PM Subject: Re: Hand Plane Chatter >> I have a hand plane that has a propensity to "chatter" in use. Picture of >> it is below. The reason the base looks as if it is curved is because it >> is curved. That's the whole deal with this plane - the base curvature is >> adjustable to any gentle curve - convex or concave. It's great for >> planing many wooden things found in piano bellies and jigs to make those >> things. But it can be a bear when the darn plane wants to chatter. > > That's a pretty steep blade angle, and a very flexible sole plate, neither > of which you can do much about and a bad combination by my relatively > inexperienced reckoning. I'd try two things. The first is related to my > miserable efforts to use a curved sole spoke shave years ago. > Chatterchatterchatter, chunkgougedig. It's been in the drawer ever since. > Problem was the sole radius was tighter than the scoop I was trying to > cut, and the thing rocked, at least under my lack of control, continually > changing the cut angle and depth of cut. Try setting the sole curve to a > slightly larger radius than your caul, so you have to lean on it some to > get it to cut. If that doesn't work, I'd try grinding the iron edge to a > shallow curve, to narrow the cut width proportional to the amount of > support the sole is giving you. If that doesn't work and ruins the plane > for all time, it already isn't working, so... > > Ron N >
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