On Sun, 13 Jul 2003 22:03:37 +1000, "Andrew Denman"
wrote:

Hi,

heard of a method of shaping foils by constructing a jig for a router.
Anyone done this or have a link for some pics?

TIA

Andrew


There is a propellor making machine on sale which
works on this kind of principle.

In its simplest form, imagine a smooth tube on which
the cross bar of a letter "H" slides.
On the left top spoke of the "H" is a pointer, on the right top
spoke of the "H" is a router
On one of the bottom spokes of the "H" is a counterweight, so the
whole thing balances about level.
The propeller blade master is held down parallel to the H vertical
bar,
The blank is held parallel to the other vertical.

After setting up, the pointer is carefully moved over the master,
while the router profiles the blank.

Brian Whatcott Altus OK

Andrew,

What Brian descrided is call a pantograph. I think. Do a Google search
for it and you will get more info than you ever wanted.

Ron