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
mechanism

Router mount and
vertical adjustment

Joints this
machine can cut

Building the
horizontal sliders
mechanism

Building the router
mount and vertical
adjustments

Building a stand
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 now
buy detailed plans for the slot mortising machine