Last night I grabbed some particle board that I have in the shop and made a bending jig for the chair back. The chairs are for the table I made for our church. Although I’m glad I had the particle board to use instead of ‘good’ plywood, I got really frustrated with my band saw while cutting out the bending form. Lately I’ve been getting along with my bandsaw but this was miserable. I cut the curve out of two boards and the switched to my jig saw because it’s always worked well for me in a pinch. There must be something in this particle board because it dulled two jigsaw blades cutting 4 boards. I have no idea how the bandsaw blade fared, but I wouldn’t be surprised if I end up getting a new blade.
So the photo above shows my first attempt at bent lamination. I’m gluing together 4 strips of 3/16 inch plywood. The plywood is recycled stuff from a drawer bottom I got somewhere. I’m using Elmer’s wood glue for this. I also wet the wood down before gluing, not because it’s required, but I figured it wouldn’t hurt to wash the used wood down. Plus it should keep the wood from sucking the moisture out of the glue too quickly, right?
I was very happy to have that big clamp in the center. It’s doing most of the work. The quick clamps are just helping to hold the ends in. The job looks good. I’m not seeing any gaps between the layers, and there was some squeeze-out. Tomorrow I’ll take it apart and see if it blows up in my face. If not, I’ll fit it to the Mark II and have a seat.
Provided this works as expected, the next step is to buy real wood a make the Mark III. Then it’s into production after I buy the wood. I haven’t done the calculations yet, but I estimate each chair will run around $35+ dollars in materials. That includes a soft cushion for the seat.
-- Ni faru ion el ligno!