Hand Tools Archive

Subject:
Re: expanding on what jim said

Winston
In my experience with Japanese planes (which isn't a lot), I found that the hollow makes it much quicker to true the sole.

When I got my first kanna, I flattened the bottom with sandpaper on granite, and it took a long time. When I had to re-flatten it due to seasonal movement, it took a long time to flatten it again. That's when I realized that if I hollowed the appropriate section, it would be much quicker to true the sole, because only a tiny amount of material (at the toe and in front of the mouth) would have to be removed each time.

Now that I've thought about what David and Jim have said about it, I think that another possible reason that kanna have to be tuned frequently is because the small contact points result in faster wear of the sole, because the downward pressure is concentrated into those small areas.

An aside: I stopped using the sandpaper method because it was still kind of slow and inconvenient with my shop setup. I don't have a Japanese scraper plane, which is the traditional tool to true the sole. What I do now is, when the sole needs significant truing, is to use a metal jointer plane on the kanna's bottom, until the toe and area in front of the mouth are co-planar. Then I use another plane across the grain to make the hollow. Much faster than the sandpaper method, but of course it requires another plane, one that is well-tuned.

Messages In This Thread

Light vs Heavy planes
Re: Light vs Heavy planes
I like tools from Brooklyn
Re: I like tools from Brooklyn *NM*
Infills in the UK
I'm glad you commented.
Weight Comparison
more infill weights
Re: more infill weights
initial fitting...
one more follow-up comment.
Re: one more follow-up comment.
rosewood
Re: rosewood
Re: more infill weights
now there is a pearl of wisdom
Re: I'm glad you commented.
what I've found...
Re: what I've found...
Re: Calling BS
Re: Calling BS
Re: Can't argue
Re: Calling BS
by the early 19th century
Re: by the early 19th century
It's not offered as ball court...
Re: It's not offered as ball court...
I'm guessing on parts here...
I miss Todd Hughes' contributions too *NM*
Re: Calling BS
Re: Calling BS
I think we're agreeing...
Re: I think we're agreeing...
Re: Me too
Wood isn't indefinitely stable, either
Re: Facts, not assertions
Re: Facts, not assertions
I haven't seen it....
Re: I haven't seen it....
Truing Kanna
expanding on what jim said
Re: expanding on what jim said
Re: expanding on what jim said
Coupla thoughts
different methods of lapping and the bump
Re: I haven't seen it....
Re: I haven't seen it....
Re: I haven't seen it....
interesting that...
Note on a modern infill
konrad's planes...
new vs. old planes...
Re: Light vs Heavy planes
Turnover, newbies and FAQ
comment on teaching
If you get my drift...
finding out who to listen to...
Re: finding out who to listen to...
Re: finding out who to listen to...
I agree...
Re: Same
Old history
Misprint?
Re: Misprint?
cultural thing...
Shops using mostly hand tools..
Re: Shops using mostly hand tools..
Don felder's guitar...
Re: Light vs Heavy planes
Not a positive contribution to the discussion
Re: Light vs Heavy planes
Inertia and figured wood
Re: Jim, what is Osae-gani? *NM*
Osae-gani
Re: Osae-gani
Note on fitting
biases for the maker...
Re:wedge fitting
Re:wedge fitting
funny...
Re: funny...
At some point..
The experiment and conclusion are both confusing
Re: Heavy and light
another factor
If you're trimming furniture...
The best case for heavy planes...
Re: reframing the issue
Friction, and more
Re: reframing the issue
not the direction I went *PIC*
5 1/4
Re: Light vs Heavy planes
Re: Light vs Heavy planes
Re: Light vs Heavy planes
Re: Light vs Heavy planes
© 1998 - 2017 by Ellis Walentine. All rights reserved.
No parts of this web site may be reproduced in any form or by
any means without the written permission of the publisher.

WOODCENTRAL, P.O. BOX 493, SPRINGTOWN, PA 18081