Subject: this week ' s woodworking tip . . . follow - up good afternoon ! no , this isn ' t a new tip - just a follow - up on the one i sent this morning . i received some good responses and wanted to pass a couple of them along . kevin wrote to say that this tip works like a charm , except for one thing : he ' s had trouble with the router bit not being perfectly centered on the base , so his dadoes have ended up less than perfect . i referred to this briefly at the end of the tip , but here ' s a quick solution for avoiding the problem . before routing the dado in the gauge , first mark a point on the base of your router . ( i simply add a piece of masking tape since it ' s easy to see . ) then when routing the gauge ( and later , the panel ) , always keep this mark against the straightedge . your dadoes should be right on . another email came in from mike , who suggested making two alignment gauges . then you can clamp one at each end of the workpiece before you clamp the straightedge fence down . this prevents the " wiggling " that often occurs when one end is clamped before the other . great tip ! a big thanks to all who have been sending in suggestions . it ' s great to hear that so many people are enjoying the tips . talk to you again in a few weeks . jon garbison on - line editor woodsmith visit our other woodworking and home improvement sites : 100 + woodworking plans : woodsmith magazine : shopnotes magazine : workbench magazine : kits , jigs , tools , project plans : back issues : woodworking forums : to change your email address or resubscribe , sign up again at to unsubscribe , send empty email message to : note : your subscribed email address is