I’ve been building a bunch of cutting boards because I got the bug! Can’t help it hanging around this site…..
So the pile of boards was stacking up and needed to get the finishing touches done. I wanted to cut the finger grip things (not sure what the correct title is?). Previously I built a plywood jig that clamps to the board and uses a handheld router to clean up. This works fine, but I had issues with tearout.
I came up with a simple jig for the router table the uses a (somewhat) zero clearance fence and a simple adjustable stop system that let’s you adjust the length of cut, just move the dowels. Without the adjustment, the wider the board, the shorter the slot (grip?) will be, so this allows you to adjust for the different board widths.
I use a Whiteside 1-1/4” bowl and tray bit for the slots. The fence is a squared up 2×4 with the bit opening cut slighly undersize on the band saw and then plunged into the bit for final size.
Start with a 1/8” deep cut and move the fence an 1/8” at a time until you get what you want.
Works really good – cut about 12 or so cutting boards on it today….
-- Jeff .... Minnesota, USA