My viking stools from the sven skilbiter site:
came out pretty good. I went to a lumber yard in the area that
carried more than yer average lumber, but could not get 1x12 birch,
so I settled for 1x12 oak. I made the legs about 18" long (before
insertion into the stool seat) and angled them at 15 degrees, because
20 degrees as specified in the webpage seemed a little bit excessive
to me. I used 1 1/4" hardwood dowels for the legs, and went over
them with a wood rasp to rough them up a bit, and make them look a
LITTLE bit less like dowels. I used that technique I was asking
about, of slotting the inserted portion of the leg and hammering in a
wedge to separate and tighten the leg inserted in the hole, and with
the glue, it is solid. I rounded the edges a bit, and smoothed the
seat a bit, as the oak was rough cut.
For myself being a non-joiner, I was pleased with the results, and
surprised at how sturdy these stools are. Yes, I know that a tripod
is inherently stable, but I had my doubts about the single leg at the
back. As it turns out, unless one leans one's whole body weight back
and to the left or right acutely, the stool is steady as a rock.
I got my two stools done in time to use in my group's demo last
Friday, and as I have more time now, I will go back and shape and
sand the seat a bit more, and apply a tung oil finish.