I get the question a lot lately about cutting dados and grooves for larger projects such as shelves. If you are a beginner woodworker, you spend a lot of time just trying to figure out which tool you need to build the project you are interested in. Its nice if you have someone there with you to ask your questions to, but it does not always work that way. If you go to a website to purchase the tools, you probably will not be able to speak to someone knowledgeable about how to make a part or cut a certain type of joint. The one question I get asked about a lot pertains to router tables. A lot of people want to use the table to cut the larger grooves to hold the horizontal shelf portion for a book case. Usually these items are longer, averaging about 72 inches in length. Most router tables are only about 30 to 35 long.
The problem you run into is that the project is longer than the table and you cannot support the work piece. This is a common problem, so youre not alone. Unless you work in a cabinet shop, you are going to have to figure out a way to support your work piece. You can always go out and by a roller stand for the support. I recommend setting up some sort of...