Hand Tools

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
Re: Light vs Heavy planes
Re: Light vs Heavy planes
Re: Light vs Heavy planes
not the direction I went *PIC*
5 1/4
Re: reframing the issue
Re: reframing the issue
Friction, and more
The experiment and conclusion are both confusing
Re: Heavy and light
The best case for heavy planes...
another factor
If you're trimming furniture...
At some point..
Inertia and figured wood
Re: Jim, what is Osae-gani? *NM*
Osae-gani
Re: Osae-gani
Note on fitting
Re:wedge fitting
funny...
Re: funny...
Re:wedge fitting
biases for the maker...
Re: Light vs Heavy planes
Re: Light vs Heavy planes
Not a positive contribution to the discussion
Re: Light vs Heavy planes
finding out who to listen to...
Re: Same
Old history
Shops using mostly hand tools..
Re: Shops using mostly hand tools..
Don felder's guitar...
Misprint?
cultural thing...
Re: Misprint?
Re: finding out who to listen to...
I agree...
Re: finding out who to listen to...
Turnover, newbies and FAQ
comment on teaching
If you get my drift...
Re: Light vs Heavy planes
new vs. old planes...
I like tools from Brooklyn
Re: I like tools from Brooklyn *NM*
Infills in the UK
I'm glad you commented.
Note on a modern infill
konrad's planes...
Re: I'm glad you commented.
what I've found...
Re: what I've found...
interesting that...
Re: Calling BS
I haven't seen it....
Re: I haven't seen it....
Re: I haven't seen it....
Re: 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: Calling BS
Re: Facts, not assertions
Re: Facts, not assertions
I think we're agreeing...
Re: I think we're agreeing...
Re: Me too
Wood isn't indefinitely stable, either
Re: Calling BS
Re: Calling BS
Re: Calling BS
by the early 19th century
Re: by the early 19th century
It's not offered as ball court...
I miss Todd Hughes' contributions too *NM*
Re: It's not offered as ball court...
I'm guessing on parts here...
Re: Can't argue
Weight Comparison
more infill weights
Re: more infill weights
now there is a pearl of wisdom
Re: more infill weights
initial fitting...
one more follow-up comment.
Re: one more follow-up comment.
rosewood
Re: rosewood
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