Karl (in firstname.lastname@example.org) said:
| Question I have is: How were the slots created?
With either a router or the table saw. If the slots go all the way
across the extension, they were probably made with the table saw;
otherwise they were probably routed.
| How would this slot be made for the T-style miter gauge slot?
Make the slots slightly wider than the washer on the miter gauge bar.
| Or would this be a mute point if I took the washer off of the
| bottom the miter gauge bar and just use the straight bit?
The washer is to keep the miter gauge from tipping off the saw table
onto your foot or the floor. Keep the washer in place - it's
Something to think about: If you anticipate making sliding
fixtures/jigs/sleds, be sure to make the slots long enough to
accommodate their runners.
Tip: Apply a bit of paste wax to the inside surfaces of the slots -
it'll help keep your sliding stuff sliding freely.
DeSoto, Iowa USA