OldTools Archive

Recent Bios FAQ

113480 paul womack <pwomack@e...> 2003‑01‑22 Re: saw sharpening made a little easier
Peter Williams wrote:
>>-----Original Message-----
>>From: Jeff Gorman [mailto:Jeff@m...]
>>
>>: -----Original Message-----
>>The principal function of jointing is to create the essential flats, the
>>guides by which we work.
>>
> 
> 
> But aren't you only supposed to joint when the teeth are uneven?
> Isn't the primary function to get a level line of teeth?
> Aren't the flat tops just incidental?

No - as Jeff say, they're an essential guide (IMHO)
during the filing process.

In practice there are TWO tasks, which happen to be carried
out by the same process.

1) Jointing - creating an even upper "plane" on the teeth
2) flat creation - creating visible upper surfaces to guide the filing
process.

If your saw is already at condition (1) you just perform
operation (2), which might also be described as ultra (ULTRA)
gentle jointing.

I actually use a big file freehand for operation (1)
and smaller (much finer) file in a jig for operation (2).

There is (of course) no hard and fast demarcation
between the 2 processes, it's just a question of degree.

      BugBear (who needs all the guidance he can get when filing)



Recent Bios FAQ