Multi 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

Buy Plans for the
slot mortiser
Tony's slot mortiser based on the plans, construction photos on flickr
Michael's slot mortiser

These articles are also available in German

My earlier video about the machine (from 2009)

More on Mortise and tenon joinery

Back to my Woodworking website