This process prepares an un-scored Top Floor for wiring with tapewire before the floor is attached (instruction step 14).
Other preparation for wiring:
E-Slot the Base Floor before attaching the foundation
Notch the top* of the Top Floor to complete the E-Slot before attaching the Roof
(more on that soon)
DHTMLGoodies.com Smooth Plywood Top Floor, stained and beautiful 907TopFloor01L.png
DHTMLGoodies.com The wiring will come up here 907TopFloor02L.png
DHTMLGoodies.com We wouldn't want the wiring to go on top of the floor 907TopFloor03L.png
DHTMLGoodies.com So we'll make a slot from the ceiling side of the floor (the bottom) 907TopFloor04L.png
DHTMLGoodies.com An X-Acto razor saw takes the thinnest kerf 907TopFloor05L.png
DHTMLGoodies.com I cut half way thru the thickness 907TopFloor06L.png
DHTMLGoodies.com A second cut 3/4" from the first 907TopFloor07L.png
DHTMLGoodies.com A fine chisel or knife to split out the plug 907TopFloor08L.png
DHTMLGoodies.com Half way down the thickness of the plywood 907TopFloor09L.png