A couple hours more in the last couple of evenings,
Here is where I left off at after the last machining session, I was able to get some slots machined for and adjustable depth positioning fence, this allows me to adjust the depth of where to cut the mortise in the edge of a board, for example, set it 3/8” off of center to put a mortise in the edge of a 3/4” thick board ect…
Now, I’m now finishing up the details on this project, so I drew up a punch list, to start this process.
I was going to put it on top, so it can be held like a biscuit joiner, for edge mortises, however, given the material I have on hand to work with, I had to use a 1/4” thick material for the front fence, and with the depth positioning fence fastened on top, with the weight of the router, allows it to have some bend away from the edge of a board to be mortised, this can be easily remedied, by machining a small angle alignment on the depth position fence to make up for this bending in the front fence, but I decided it woulod work better if my boards were held in a vise, (my workmate) on edge, and set this jig on top, however, if I put the depth positioning fence on the bottom, I could make a clamping system to keep everything nice and tight while work is being done on the board.
So first I need to estasblish all reference points to make marks on the jig, to be used as depth fence positioning guide lines.
guide lines marked for 3/8”, 1/2” and 3/4” off of center.
Now I need to make some reliefe spots to be able to better see the pencil marks on the edge of a board, so I’ll machine down these areas here
the process involved
and mark out the center line for reference for lining up a board for a mortise.
Now I started the clamping system, the top block was drilled and tapped for a 3/8 -16 all thread I had in the bin,
the process in making the clamping jaw,
here is some scrap to work with,
here is my drawing of the dimensions at the lower right corner
first I need to machine a spigot, that will fit into a corresponding hole in the moveable clamp jaw.
it will go in like this
now I need to make the allthread fit into this swivel joint,
so I first machine off this much of the threads
Now to make it swivel in the vice jaw pad, I need to machine a slot to allow a setscreew to fit into
in this location marked off,
here is the process
check for fit, not enough yet,
now it fits nicely
now to bore a hole in the swivel block to acept this all thread shank.
now to mark off the location to drill and tap for the setscrew in this swivel joint block.
and the process
now bore a hole in the vice jaw paf to accept this swivel joint block,
to keep this permanently affixed, I used super glue.
now a dryfit to see how it all works together.
Next I want to work on handles for the jig, and a “x” axis lock pin, for drilling dowel holes
as well as a plunge piston, like a plunge router has.
Then some final tweaking and things…
Have fun in the shop.