Up and Down-The mechanism can be adjusted up and down bv means of check nuts on a vertical threaded rod located at the bottom of the hearing plate. Mechanism moves in these three directions, refer to Figs. It's easy to make and use, and it requires far less space than the average slot mortiser.

This homemade slot mortiser is simply a precision-made jig with a router attached. 1 designed my slot mortiser with these movements in mind. To be effective, a slot mortiser needs to be able to move or be adjusted, as shown in Fig. This article will explain how it works and how to build one yourself. It even beats the commercial ones when mortising large, unwieldy stock, because the stock itself is fixed during mortising. This slot mortiser takes up little space and has proven to be extremely reliable, accurate and convenient. The resulting mechanism consists of a plunge router mounted horizontally on a sub-base which rides back and forth on shafts that arc fixed to a bench. After thinking it all over and listing my requirements and desires, I realized that I could better satisfy my needs by simply designing and building my own slot mortiser. I discovered that I had neither the moncv nor the space for a commercially made slot mortiser. With This Jig, You Can Use Your Plunge Router to Cut Mortisesīout a year ago, faced with the need to cut hundreds of mortises, I went shopping for a machine to do the job.

Plan shop slot mortiser