Tablesaw Box Joints Edison NJ
Monmouth Junction, NJ
Staten Island, NY
Staten Island, NY
Tablesaw Box Joints
Tablesaw Box JointsA shop-made jig with micro-adjust guarantees perfect joints.
by Tim Johnson
Box joints are the savvy woodworker’s alternative to dovetails. Strong, great-looking and quickly made, box joints are an especially good choice when you have a large number of items to produce. To make them, you need your tablesaw, a miter gauge, a dado set and a simple shop-made jig (Fig. A, below). I’ll show you how to build the jig and use its micro-adjust system to dial in perfect-fitting box joints.
Box joints have alternating pins and sockets. To fit together, one piece has pins where the mating piece has sockets (Fig. B, page, 70). The challenge is to cut pins and sockets that are virtually the same size, with paper-thin tolerances for fitting the joint. Fortunately, the jig can make paper-thin adjustments. It also automatically positions both pieces so their pins and sockets are correctly offset.Design Details
Pins and sockets can be wide or narrow to suit your project. To size them appropriately, you merely adjust the width of the dado set. For example, to cut 1/4-in.-wide pins and sockets, use a 1/4-in.-wide dado set. The blade’s height determines the length of the pins and sockets. This length matches the thickness of your box pieces. Flat-bottomed dadoes are a must for good-looking joints.
It’s best to start with your box pieces oversize and trim them to final width after you cut and fit the joints. Box joints usually turn out to be wider than the sum of the pin and socket widths because of the fit-tolerance between each pin and socket. Starting oversize allows you to compensate.
Photo 1: Set the blade height using a piece from your project. Place the piece on the jig’s carriage and raise the blade.
A scrap piece held on top tells you when the blade is exactly even with the workpiece. Before moving on to the next step, make sure the miter gauge bar slides smoothly without any side-to-side play.
Photo 2: Clamp the adjustable fence temporarily to the carriage and cut a slot through both pieces. After cutting, thickness-plane a 12-in.-long piece to exactly fit the slots’ width. Cut this piece into three keys. Trim one key to two-thirds the size of the slot’s height.
Photo 3: Use three hardwood keys to position the adjustable fence on the carriage. Glue one key in the fence slot. Fit the second key in the carriage slot and sandwich the spacer key in between. Securely clamp the fence to the carriage while butting the three keys snugly together. Drill pilot holes and fasten the fence. Remove the clamps and the two temporary keys.
Photo 4: Micro-adjust blocks allow you to fine-tune the jig by paper-thin amounts. Attach one block to the carriage base. Butt the second block against the first, with two pieces of paper between them. Fasten this block to the adjustable fence. The space between the carriage bloc...
Philadelphia Flower Show 2018
Dates: 3/4/2018 – 3/11/2018
Pennsylvania Convention Center Philadelphia
1101 Arch Street
The Philadelphia Flower Show, internationally recognized as one of the nation's premiere events as well as the oldest and largest indoor show of its kind, is produced by the Pennsylvania Horticultural Society. PHS has more than 15,000 members throughout the country, offers hundreds of educational programs year-round, and is considered the nationâ�TMs leading authority on urban renewal through greening. PHS's acclaimed Philadelphia Green program restores neighborhood parks, creates community gardens, conducts large scale tree plantings, revitalizes vacant land, engages thousands of citizens in community development activities and maintains treasured public landscapes. Its greening efforts are modeled in many cities across the country.Not sure if you want to exhibit at or attend the Philadelphia Flower Show 2018? See the panels below to get the information you need to make an informed decision.All information in Events In America is deemed to be accurate at the time we add it,and we take steps to verify all details and update our records when new information is provided, but as people, events and circumstances change, we caution users to independently confirm all information. EventsInAmerica.com and Events In America LLC make no guarantee of accuracy and assume no liability for inaccurate information.