I have been using a router table with a template guide bushing to rout out different shapes of blind dovetails (the shapes are not nessearliy dovetails but cresents, greek keys, bear ears etc) this requires 2 jigs with a built in offset (I got mine from woodline usa).

I use a dedicated 2 1/4 hp PC router with a fixed base that I leave attached to the table. I remove the router from the base in order to change the bits or the collet as some of the bits are 1/4 and some are 1/2 inch.

In order to have them come out properly you have to be pretty exacting in using the jig and centering the cutting bit (usually 1/8 inch) in the template bushing with the use of a centering pin.
My question is this: since I only remove the motor from the base and not the base itself from the table, do I need to go through the motions of using the centering pin each time I change a bit?


As always I am grateful for any help.

Louie.