This post was made as a guest post for Scott Rao’s blog, and you should check it out there. I also have a dedicated page for the Sandpaper Alignment Guide in my How-To section. In it I go into depth with a how-to on permanently aligning grinders that have the burr pattern featured in the diagram here. EK43s, Bunn G Series grinders, Guatemalas, and really anything where the outer burr is mounted to a spinning carrier. If you have a compatible grinder and want to give it a try yourself, I’m happy to answer any questions you might have!