Multi slot mortising machine

You can buy detailed plans
for the slot mortising machine

I have always used a home-made slot mortising machine for my mortise and tenon joints. My previous slot mortising machine was made possible because of a lucky surplus sale find. But I had always wanted to be able to build a mortising machine from scratch using readily available materials. I have finally achieved building such a machine, and this article describes how it works.

Horizontal motion


Router mount and
vertical adjustment


Joints this
machine can cut

Building the
horizontal sliders


Building the router
mount and vertical


Building a stand
for the
slot mortiser


Horizontal router table
for the slot mortiser

You can also see a Tony C's slot mortiser
based on the plans on on LumberJocks.
Tony also has a lot of
photos if it's construction on flickr.

These articles are also available in German

You can buy detailed plans for the slot mortising machine

More videos about the slot mortiser:
Using the slot mortiser for some shelves
Steve Emmons video about his machine
Tony C's slide show / video about his mortising machine
My earlier video about the machine (from 2009)

More on Mortise and tenon joinery

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