I did not edit this video, other than adding titles and notes to the photos at the end.
Why? Because I wanted everyone to see how easy it is to machine these joints on the new RTJ400 dovetail and finger joint jig from Leigh Industries.
It took me two trial runs to get the joints dialed in. I am still learning the features of the new router table. One big thing I learned today: I must secure the insert plate with the two machine screws provided, as it was probably moving too much, and causing problems with the fit. That was the main reason it took me three runs to get a joint with a nice fit. I will confirm this over the weekend.
At the end of the video I share two other tips: 1) to ensure a near-square saw cut, check the reflection of the board on the saw plate – and 2) ensure board width is the correct width for the number of finger joints you plan to make. I should add a third tip: Use a shooting board to true the cut to 90°; all boxes you make will thank you.
— Al Navas