[HBR] Chassis kits

[Brian Burns]

Hello All,

Just a note on cutting an aluminum flashing and plywood sandwich. A
woodworking table saw will cut aluminum just fine. The trick is the type and
quality of the blade. I use a Forrest High A-T blade for virtually
everything I saw, even though it's intended for cutting plywood cleanly. Not
cheap, but will make a cheap table saw cut like an expensive one, saves
cleanup work, and leaves nice crisp professional edges.  

High A-T means high alternate top bevel, and its intended purpose is to cut
plywood and fiberboard without tearing out the bottom edge of the cut. Most
any carbide blade will make a clean cut where the teeth enter the work, but
the bottom edges will be left quite ragged, especially when cutting across
the grain---cross-cutting. 

The High A-T design scores the bottom surface of the work before removing
the stock in the center of the cut. Very clever! I would be sure to have the
aluminum side facing up so that the saw is pulling it down, and isn't trying
to delaminate it from the plywood.

Cheers,

Brian

 


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