The newer versions of the Leight Pro FMT have a sub-base that accommodates the Festool router I have. The old version (which I have) does not have the matching mounting holes. I added them.
After careful layout on the sub-base to locate the position for the mounting holes, I also made a test run of drilling a mounting hole in an area that would be covered by the router. I used an auto center punch to make a divot for the 1/8" pilot hole, then followed by drilling out with 1/4" bit, all done on the drill press.
I bought a set of counterbore mills from Amazon, and one was virtually an exact size match for the existing counterbored holes on the sub-base.
With a series of short passes, checking for depth by eye, making the counterbore was easier than I expected.
With the test hole done, I followed the same process for the actual mounting holes. All went very smoothly. With the centering mandrel in place, I could check the fit. The screw threads were binding very slightly, and just a light pass with a rat-tail file in the hole was enough to free-up the threads.
Ready for business.
I made another test mortise and tenon. A much better fit and smoother walls of the mortise due to the minimal deflection with the Festool router.
Finally, I could make the mortises in a pair of legs.
A test fit with the trial stretcher. It's looking good so far.
