Saw Arcs

What radius is that saw?

There’s no point getting a saw sharp and straight if you cannot protect its edge. I experiment with plywood scabbards ( see video below) and will have some at Sawfest Sheffield July 27 to 29, 2018 to try.

My initial guess of 18 feet radius was too big. Most saws did not nest well in those scabbards.

I tried calculating the arc, but the results were variable.  Simpler by far was to get a surveyor’s reel-tape and chalk.

Here’s how I did it…

Saw vises too should conform to the most common arc.  For my current collection of saws, that is radius 14 feet.

Saws laid out on their different arcs

Here you’ll see  a gap of 20 mm arises from a 3 foot difference in radius…

Here is my prototype scabbard at 18 foot radius…

Leave a Reply