MikeWhy wrote:
Is the spreader bar hinged in a bowsaw frame? A rigidly glued tenon
doesn't seem very efficient in tensioning the blade. Does it work well
that way?

I saw these guys at a local antique tool show. Bet you can't make one
for less. Did not try them but looked very sturdy.
http://stores.ebay.com/CME-Handworks-Inc

--
Jim Harvey, Naperville, Ill. Linux person - WB8NBS/9
He who dies with the most software wins.