Diamond Saw for clean cut then Chisel

Feather and Wedges

Check for Flaws... All's Clear

Mark next cut line (at 20")

Draw cut line in three dimensions

Diamond Saw Cuts to depth

Chisel cuts away

Continue until uniform depth achieved

Find Center Line and Mark next cut

Find Center Line and Mark next cut

Find Center Line and Mark next cut

Continue Cuts

more feather and wedges

Last large chunk to go

Block is now cut to size