Sheffield Tony
Ghost of the disenchanted
I sneaked out yesterday to do a bit of chair building. I've not taken a WIP series of pictures this time, as the processes are much the same as I've shared with you before - froe, axe, drawknife, pole lathe etc, and I don't want to bore you. The difference here is the style of back; I'm making a sort of harlequin set with common materials and elements, but each with a different back style. This one is for my wife, who likes a bit lumbar support, not provided by the spindle back and ladder back styles I've made so far. This one should be comfy for her, the back laths are steam bent to shape using a jig made to her measurements.
Sorry about all the c**p in the background. The angle makes it look a bit wonky to me, but I assure you it isn't really !
One thing I wanted to show you is the joint between the back legs and the seat rails. We've discussed a few times how this is a site for failure in chairs, and the sorts of joints you might use in a jointed chair. Here, things are quite simple:
The legs are 1 3/4" diameter, the holes are 5/8", bored with an auger and finished with a Forstner (in the hand brace) to get a bit more depth without the lead screw of the auger penetrating the other side. The depth is 1 1/4". The two holes intersect, but are offset by about 50% of the hole diameter. The side rails are fitted first, then the holes for the front and back rails are drilled through them. This means that the side rails are locked in place when the front and rear seat rails are fitted. Quite a conventional arrangement. You get away with it because the legs are straight grained, knot free, riven ash. The selected piece is fairly young regrowth from coppiced trees, about 5" or so diameter, which is more springy. This comes from near the base, with a natural curve which can be exploited to make the bending easier.
Just need to trim and finish the back legs at the top and bottom when it has dried a bit more, then on to seat weaving again.
Sorry about all the c**p in the background. The angle makes it look a bit wonky to me, but I assure you it isn't really !
One thing I wanted to show you is the joint between the back legs and the seat rails. We've discussed a few times how this is a site for failure in chairs, and the sorts of joints you might use in a jointed chair. Here, things are quite simple:
The legs are 1 3/4" diameter, the holes are 5/8", bored with an auger and finished with a Forstner (in the hand brace) to get a bit more depth without the lead screw of the auger penetrating the other side. The depth is 1 1/4". The two holes intersect, but are offset by about 50% of the hole diameter. The side rails are fitted first, then the holes for the front and back rails are drilled through them. This means that the side rails are locked in place when the front and rear seat rails are fitted. Quite a conventional arrangement. You get away with it because the legs are straight grained, knot free, riven ash. The selected piece is fairly young regrowth from coppiced trees, about 5" or so diameter, which is more springy. This comes from near the base, with a natural curve which can be exploited to make the bending easier.
Just need to trim and finish the back legs at the top and bottom when it has dried a bit more, then on to seat weaving again.