This is my Biscuit Jointer Spline jig Instructable..

Step 1: First Stages.

This is how I started Building My Biscuit jointer Jig..

First off I used Some Draw fronts from an Old Pine Dresser. Recycling :) I then Ripped them On My Homemade temporary Table Saw as my main saw is in parts and being serviced by Myself.

Once I got the to the same width as The Biscuit Jointer I then Proceeded to the next stage...

Step 2: The Foot Plate and the Optional Frame/Box Clamp

I used My Scroll saw to cut out the Beak from The Foot Plate and The Optional clamp. I Used a Spiral blade with 46 teeth per inch. at 3/4 speed Pine stock Is one inch thick.. Once all the cutting and sanding was done I used a square to make sure that the two points where inline. Once I was happy with that I then drilled the hole into the clamp to accept the T Thread for the T- Slot rail that I routed out earlier. The Optional clamp Is used Only for complete Square boxes and Picture frames and the T-Slot Clamp is used for the oblong type boxes and Picture frames.

Step 3:

The next step was to ad the side rails that help support the Jointer. Made from the same draw front..

I used Double sided tape to hold them in place while I clamped them down, I then pre drilled and countersunk the holes and place the screws in. I did not glue the rails in as I might want to remove them at a later date for options and upgrades.. The base of this Jig is from an Old Router table top I made years ago so I ripped it to size on my Table saw.. Material MDF 25mm Thick..

Step 4:

Once I was happy with the Position of the Rails I cut a optional Wood Block to add to the Jig That acts as A spacer in I want to spline taller boxes ect. This can be added or removed ( See Video ) .

I then Re Used and Changes A clamp from a router table. These are the clamps that hold the Router In place under the table. I placed it in the vice and bent one of the lips to the opposite of the other and ground it to the length and width I needed to be used to clamp the jointer at the rear.

I cut some more T-Slot rails to add to both left and right of the jointer so I would then use the T-Slot clamps to hold it down the Unit. They hold it in place very well and it does not move..