Louella Combs Jointers August 17th, 2018 - 20:12:24
It would seem that here the problem is solved. And with luck, sometimes it is. But most of the time when you put the edges of four or five boards together, you will find gaps between them. And it can be quite frustrating when you carefully handpicked the boards, to begin with. Gluing and tightly clamping the boards might remove the spaces, if you are lucky. Or, if you have a lot of time, you can select more boards and lay them side by side until you eventually find boards that do fit together tightly. As explained below, a jointer can easily solve this problem.
As with most woodworking machines, the type of jointer need by a woodworker depends mostly on the production demand of his or her woodworking operation. For hobbyist woodwork or small woodshops, smaller jointers that have a 4 to 6 inch width of cut are usually sufficient, while for larger, multifaceted woodworking operations, a larger jointer with an 8 to 16 inch width of cut is usually recommended.
A wood jointer can remove these imperfections very quickly usually in less than a minute if not seconds. Then when a piece of lumber is laid next to another piece they fit together smoothly and precisely. A tight 'joint' is formed. Hence the origin of the word 'jointer' a tool that can form a tight joint. The carpenters of old could only marvel at what a modern wood jointer can do in a few seconds!
The depth of cut is determined by the height of the infeed table with reference to the outfeed table. The lower the in feed table, the more wood is removed with each pass over the jointer. It is not a good idea to take off too much wood with a single pass. The chances of tear-out increase with the depth of cut and you may end up removing more precious wood than you really needed to, to get your perfect joint. After all, the idea of jointing is always to remove just enough wood to create a straight, flat board edge. Removing any more than that is just a waste of wood.
Third, you should ask to see a copy of a jointer's official logged service record to ensure that its previous owner(s) maintained it regularly. Fourth, you should inspect a used jointer first hand before making a final decision, or have an impartial third party conduct the assessment on your behalf. Following these steps will lead you to a used jointer that offers the same efficiency and dependability as a new jointer.