Filing big japanese saw.

[Oskar Sedell]

Hi all.

Some time ago I bought this used saw with the intention of using it for ripping. It arrived dull, and with a tooth profile which I guess is for crosscutting, possibly for green branches (please correct me here if I'm wrong). In its present state it won't cut anything.

I want to refile it with rip teeth. I have a feather file, and a diamond coated japanese saw file as well. Since it is big rip teeth I think I can pull this off, and hopefully get a decently working saw.

Before I start I want to ask the members here with experience in sharpening/filing japanese saws if this saw type has the potential of beeing a useable rip saw (the dedicated ones I've seen in pictures usually have wider blades)?

Furthermore, I'd appreciate any advice on filing jap. rip saws. Anything in particular I should be aware of?

With 15'' Jack for scale:

DSCN1518.jpg

Tooth profile, welding line and stamps:

DSCN1519.jpg

DSCN1520.jpg

DSCN1521.jpg

Looking forward to hear about your experiences.

Oskar

[Stewie Simpson]

Oscar; looking at the thick gauge of the saw plate along the tooth line, it may not cut too cleanly in a rip tooth. Japanese Saws are not my forte so others may offer a more experienced opinion.

Stewie;

[Oskar Sedell]

Thanks Stewie. I'm not sure I understand what you mean. What I know is that the set is quite big, and I think that it will get better when I file the teeth down to the rip profile.

[Stewie Simpson]

Oscar; would I be right in suggesting the saw teeth at the moment are sharpened with crosscut fleam.

[Oskar Sedell]

yes, they are.

[Jim Koepke]

Can you tell if the current profile is original or if it was altered by a former user?

jtk

[Oskar Sedell]

Hi Jim, no I can't. The teeth are a bit uneven, especially in the amount of set. But I can't say if this is due to rough use or if they have been set like that.

[Jim Koepke]

Hi Jim, no I can't. The teeth are a bit uneven, especially in the amount of set. But I can't say if this is due to rough use or if they have been set like that.

I am not much up on Japanese saws. One thought is they do not have a lot of set. Makes me wonder if some amateur with a saw set thought they were sharpening it by giving it more set. I have met a few no nothings that think a saw set is a sharpener.

jtk

[Jim Koepke]

Forgot to mention the set can be removed if need be by pressing the saw in a good machinist vise.

jtk

[Oskar Sedell]

Yes, I've read about removing set this way. But, by filing the teeth to rip profile they will loose their sharp, crosscut tips, and thus the set will become less. Actually, I hope that enough set will remain after filing, since I have neither a saw set, nor tried setting the saw with hammer and anvil.

[Pat Barry]

I assume you need special files to sharpen teeth on a saw like this. What type are they, where do you get them?

[Stewie Simpson]

Pat; here's a good lead; http://www.thebestthings.com/newtool..._saw_files.htm

Stewie;