30
Working With Vacuum Tables and Spoil Boards (Cont’d.)
-
There are, however, exceptions-
1) It is a good practice to keep material on the top surface of the spoil board overnight to
prevent warpage due to uneven moisture absorption by the material.
2) Once a spoil board has been used and has kerf cuts that resulted from machining parts, it is
a good idea to fly cut the surface again. This time it should only be necessary to remove
0.015" of material since the only purpose is to produce a smooth, flat surface, and that
amount should remove the machining marks.
3) The spoil board must cover the complete table and sit on the flats around the table. If the
spoil board does not cover all the vacuum slots, the vacuum may be lost or not exist and
the panel material will not be pulled down onto the spoil board effectively.
