|Project by Mark Kornell||posted 08-06-2015 06:11 AM||3278 views||9 times favorited||21 comments|
I made this shoulder plane for the 2015 shop tool swap to send to shipwright.
The body of the plane was sapele with an ipe sole. The wedge is cherry.
Iron is a Lee Valley O1 iron for their 1 1/4” shoulder plane. The plane is bedded at 35°
The finish is polymerized tung oil and wax.
The purpose for the adjustable mouth was two-fold. First, it allows fine-tuning the cut. Second, it allows the iron to be used in bevel-down or bevel-up configuration. With the iron bevel-down, the cut angle is 35°. In bevel-up configuration, the cutting angle would be around 60°, depending on the bevel angle of the iron.
The plane was made using the sandwich method. That is, I made up a wide blank, then cut off the two sides for the plane. Then I cut out the internal cavity (for an 11° wedge) and a flat for the base of the knob and glued the whole thing back together. The adjustable front piece was shaped separately from a cutoff from the initial blank.
The most challenging part was the adjustable mouth. The groove in the main part of the plane and the tongue on the moving part both need to be shaped precisely to match each other. It isn’t terribly difficult woodworking, just needs some patience to sneak up on the perfect fit.
The reeding detail was shaped with a Lie-Nielsen beading tool with the curved fence. It is a marvelous tool to do this type of detail work, but shaping the reed along outside curves takes a bit of practise.
I made a duplicate of this plane to keep for myself. It isn’t quite complete, just need to do the final shaping and finishing.
For the photograpy buffs – yes, I know my F-stop was wrong :-)
-- Mark Kornell, Kornell Wood Design