I use my DeWalt 618 routers for cutting dovetails on my Leigh D4R. I prefer the D handle bases, but the fixed bases work fine too. I just feel more comfortable with the big handle grip of the D handle style base. I use two routers when I cut dovetails, one with the straight bit and one with the dovetail bit, so I don't need to change the adjustments or bits in the middle of the dovetail joint cutting. This is especially valuable when cutting 1/2 blind dovetails, since you might damage a part and need to cut a replacement using the same exact bit adjustment that you had before switching bits.
All of the Porter Cable style guides work well with the DeWalt 618's too. Actually, you can cut dovetails with a 1/4" router, but there is flex in the 1/4" bit shanks when doing it, so you need to go slow with the 1/4" router and 1/4" bits to get good results. The 1/2" bits in a larger router do better because they don't flex as much when cutting. A three hp router is too big and heavy for dovetailing, but it will work. You will get some significant arm muscle exercising lifting it on and off the jig. I tried doing this when first using my D4R, and cut dovetails all day. The next day I couldn't lift my arms high enough to lift the 3 hp router off the work bench. I don't have this problem when using my 618's. I can cut dovetails all day, every day until the job is done. Go with a 2-2 1/2 hp router for cutting dovetails and you will thank me the next morning.
Central North Carolina
Last edited by CharleyL; 06-20-2019 at 02:16 PM.