I have a Woodpecker Extension table coming for the TS3650. The Woodpecker tables are 1 3/8" thick, 2 layers of 5/8" MDF with both sides laminated.
I have thought of 3 ways of mounting it between the 3650 rails.
1. Rabbet the rail ends of the table to mount aluminum angle in and mount the angle to the rails. The rabbet depth would have to be around 3/4"
2. drill holes (depressions)in the bottom of the table with a forstner bit deep enough to accept 5/16 nuts, with holes drilled in the end of the table matched to the forstner holes for the 5/16 bolts to pass through.
3. A dado about 5/8" deep parallel with the rail ends, about an inch in from the ends to place the 5/16" nuts, maybe with a piece of 1/2" wide, 1/8" thick Al. under the nuts for strength.
All these are using 5/16" bolts with the bolt heads in the rail tracks, like the factory extensions.
I 'think' all of these will work. I'm looking for comments on which will be the strongest.
Hope this is clear.