Before I begin, I'd like to credit Richard McGuire, whose jack plane build videos really helped me, and Caleb James, whose published free plans for a wooden jack also helped a great deal. I don't have plane floats, so like Richard's plane build (and unlike Caleb's), I'm using a three-piece glue-up for my design. And like Caleb's plane (and unlike Richard's) I'm using abutments to wedge the iron rather than using a cross-bar - I much prefer abutments. I built a wooden smoother this way last year and it turned out pretty good. Those blog entries are here and here.
|The coffin smoother in red and white oak|
|Two sides and main body|
On the sole of the main body blank, I measured 5 1/2" from the toe to mark the back of the mouth. Then on the sides of the blank I drew a 45° bed angle and a 60° breast angle from that spot.
|Main body lines laid out|
|Then cut out the triangle and planed perfectly square the bed and breast|
|It made sense here to create a recess for the cap-iron screw.|
I used chisels and a router plane
|On the fore part of the main body I added a small wear angle (bottom left)|
|Marking the rear abutment recess line|
|Worked out some angles on paper with the actual iron and cap-iron|
|Marking the forward aspect of the wedge abutment recess|
|Far side is being held away from main body, near side is in proper placement|
|And here are the three parts placed together|
|When I moved the fore part of the plane to a location that would give a reasonably sized mouth|
I got the funny offsets that you see here. I dealt with that later.
|Then turned right-side up and added glue to the sides|
|After clamping and allowing to dry, I cleaned up the surfaces|
|As for that discrepancy on the sole, ...|
|... I chiseled the wear back to line up with the sides|
|But this created a mouth quite a bit larger than I wanted|
|First shavings from a scrap of pine|