Router Table Mortiser

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Project by Warren posted 08-05-2020 03:06 AM 1231 views 1 time favorited 1 comment Add to Favorites Watch

I have been making several small end tables with mortise and tenon joints and wanted to see I could design an apparatus to make mortises for the table aprons.

Below are a few photos of a my Gen I mortiser that works on a router table. This mortiser has the workpiece plunge into a the fixed router bit instead of plunging the router into the workpiece

The workpiece is clamped to a carriage which can move up and down (Z axis). The carriage is made from ¼” aluminum plate and moves up and down on v-bearings.

There are two other ‘fences’ and three 3/8”-16 adjusters; the Y adjuster is for aligning the workpiece for and aft with respect the router bit, and two X adjusters to limit X travel to the left and right. My router table also has a lift, so the depth of the mortise of controlled by the lift.

After adjusting the Y axis adjuster to align the workpiece for and aft, and the two X axis adjusters, the workpiece is plunged into the router bit and moved left and right between the screw stops.

This setup works well as is, but I am sure I will make some refinements down the road to make it easier to set up and operate.

1 comment so far

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3309 posts in 3407 days

#1 posted 08-05-2020 09:50 AM

Nice design, looks to work very well and should achieve a great deal of accuracy.

-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln

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