OldTools Archive

Recent Bios FAQ

182347 Metalworker Mike <metalworker.mike@g...> 2008‑08‑21 Re: Re: 3-Minute Dovetails
Frank Filippone wrote:
> Great picture... really explains the issue.....  the mistake is the that
> both ends of the blade are filed rip.... I think the closer part needs to be
> filed crosscut... for doing the bottom of the pins and tails...........

   Actually, I think that was an error in the blog.  He calls it a 
'rip-crosscut' so I imagine that the front of the blade is filed rip and 
the back end of the blade (after the twist) is filed cross-cut.

> If you took a regular old 1/4 inch  blade, and "bent it permanently" at 90
> degrees, you would have it, at least a practice one.......
> Do you apply heat so that the steel takes the bend permanently?  I think
> so....

   It would depend on the steel.  Honestly, saw steel is not hard.  It 
will take a bend and keep it.  The problem will be getting that fold and 
keeping the blade straight.  Easiest would be to use a bending brake to 
fold it over then put the blade under tension and pull it straight.  It 
might take a few tries to get it right.  Stephen says he's made several, 
and he's a 19th century re-enactor so it's unlikely that there are any 
high-tech tools involved in making the blades.

M.Mike
------------------------------------------------------------------------


Recent Bios FAQ