This sled makes it easy to cut the slots needed to hold a hidden spline in a miter joint. You can make it from plywood or MDF, with the two leaves of the jig held together with inexpensive hinges. Screws in the two uprights hold the hinged leaf at the desired angle. Make the jig long enough to hold a range of sizes, and attach hold-down blocks as needed.

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A Shopmade Featherboard
This simple fixture makes it easy to cut profiles on small or short pieces.

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A Pattern-Routing Jig
Made from MDF and scrap stock, this jig lets you cut multiples quickly and precisely.

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A Zero-Clearance Fence
A simple sheet of Masonite keeps small workpieces in line.

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A Miter-Angle Sled
An easy way to cut stopped grooves in mitered stock.

 

A Veneer-Jointing Jig
A pair of crowned boards holds a stack of veneer tightly for perfect edge-jointing.

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