In this shot, details of the bottom wire mounting piece are shown. A 1/8 inch hole is drilled in the end of the wood piece to accept a 8-32x1in. machine screw. To this screw, the power wire from the transformer and the hotwire itself will be attached. In the center of the bottom mount, a 1/2 inch hole is drilled with a forstner bit. A 1x6in. wood screw with washer is used to attach the piece to the table. By moving the mounting piece slightly in any direction, hotwire can be adjusted to be plumb in two directions and give right angles when slicing through the foam.