|Project by JohnMcClure||posted 10-23-2016 11:53 PM||938 views||1 time favorited||7 comments|
This is my first ZCI for the tablesaw. I started with 1/2” MDF, traced a throat plate and scroll-sawed close to the final shape, leaving about 1/8” extra. Then I used a flushtrim bit on the router table to remove the excess.
The throat of the 4512 has 5 cast iron protrusions of irregular shape and depth, in which are 5 leveling points. I needed the ZCI to clear all the protrusions and to be exactly 0.1” thick above all the leveling points.
Back on the router table, I rabbeted the edge all around to clear most of the obstructions, then removed material more precisely where the leveling points are.
The blade wouldn’t go low enough to clear the ZCI, then turn the saw on, then raise the blade, so I routed out a groove to give me just enough room first.
Two questions for those who have gone before:
-Should I try to reproduce the “safety tab” that’s on the bottom of the factory throat plates (in picture)? Is it really important?
-Do you apply paste wax directly to MDF, or should one shellac it first?
Thanks for looking!