Hi folks. I just received a new Hock blade and breaker for my 30’s era Stanley Bailey #7, and it seems the extra thickness of the Hock vs. the old Stanley blade prevents there being adequate clearance for the shavings to pass through the mouth. I can’t be the first person to have this issue. My first thought is that I need to slightly and carefully enlarge the mouth with a file. Yes? No? Thanks.
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Replies
I've never done this, but there is a FWW artical that describes how to tune up a plane that suggests this technique. If you a member search hand plane tune up.
Have you tried adjusting the frog back a bit?
I have the same plane, and I had the same problem. I was able to adjust the frog, as previously mentioned, to allow for the extra thickness. Otherwise, you'll want to scribe a line on the soul of your plane, and very carefully file to it. Try adjusting the frog first, it should work.
Jeff
Hi RC,
Don't file the mouth unless you're sure you cannot move the frog back far enough. I was able to on mine (Later No. 7, Hock iron & chipbreaker) if the frog is backed off but the chipbreaker is in the way, back it off from the iron and try it before modifying the plane.
I found it works just as well with the chipbreaker .050-inches away from the edge of the iron.
David C
Thanks for the replies. Yes, I've worked the frog into every conceivable position, no luck. I'm not a paid member but do buy the magazine - was this article published? I'll check the back issues. Last question (for now) - should I slightly open the front or the back of the mouth? I intitially thought front, but I can adjust the frog back enough that I suspect either would work. Thanks.
Your 1930's plane will have a raised receiver for the frog. A raised guide cast into the body of the plane used to guide the frog. If you move the frog too far back this receiver will stand proud of the bed. Clamping the cap iron down when the receiver is proud and the cap iron screw hasn't been backed off will result in a broken plane body. It's a common cause of the fractures running off the back corners of the mouth.Don't move the frog so far back the receiver stands proud of the frog and leave a little room so you'll be able to set for heavy shavings if you ever need to.Work on the leading edge of the mouth. It will actually help you tune the plane because the most significant wear in Bailey type planes happens at the leading edge of the mouth. Filing that back a little will help you get the crisp leading edge that'll help your plane's performance but don't go too far. It's better to lap the sole to get rid of a rounded leading edge of the mouth than to file the mouth too much.
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