According to Wayne Cook :
On Wed, 25 Jan 2006 22:10:06 GMT, wrote:

Mike Berger wrote:

[ ... ]

Don't know about the Enco 7x12 but there is no way to use a smaller
blade on the 5x6.

A real vertical can use what ever width blades up to max size. The
horizontals are limited to one blade width.

Exactly!

That is because a real vertical has a crowned rubber tire which
causes the blade to run at the top of the crown, no matter the width.

The Horizontals (at least my 4x6) use steel or cast iron wheels,
with a shoulder to trap the back edge of the blade, and a relief turned
under the teeth so the set of the teeth is not damaged by the constant
impact against the side of the wheel. A narrower blade would not have
this protection -- though you *might* be able to get away with turning a
second relief groove for a *very* narrow blade, leaving enough to
support the wider blade for normal use.

However -- you might have to re-design the guide rollers to keep
them from crimping the set out of the teeth.

Different designs for different purposes.

Enjoy,
DoN.
--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---