I'm obviously doing something wrong. When using my PC 890 VS router in my new Leigh D4R dovetail jig (hidden gloat, there), the dovetail bit loosens and significantly increases the depth of the tail slot. The router is running at the slowest speed to try and prevent tearout, and I've torqued down the collet as much as possible, but out of the 50 or so dovetails I've cut, I would estimate that only about half are acceptable.
I'm using the bits that came with the jig and they require an insert for the 1/2 inch collet. I suspect that either the insert is not gripping the bit with sufficient force or the bit is not seated far enough into the collet. In order to cut dovetails in 3/4 in stock, the bit must extend pretty far below the router base.
So two questions: 1.) Any ideas how to correct the problem with the shifting bits? and 2.) Any ideas how I can repair this? Or should I cut another piece? (I apologize for the poor picture. Looks like I also need to work on my photography skills.)
I'm using the bits that came with the jig and they require an insert for the 1/2 inch collet. I suspect that either the insert is not gripping the bit with sufficient force or the bit is not seated far enough into the collet. In order to cut dovetails in 3/4 in stock, the bit must extend pretty far below the router base.
So two questions: 1.) Any ideas how to correct the problem with the shifting bits? and 2.) Any ideas how I can repair this? Or should I cut another piece? (I apologize for the poor picture. Looks like I also need to work on my photography skills.)