For this Instructable, wholman used a "lost styrofoam process" to create the joints for his chair, a fascinating process in which you place an object in sand and clay, then pour in hot metal, which destroys the original item, filling the hole which it has left. The cushions are crafted from dowels threaded through pool noodles, covered in fabric. The "four squares" of the title, according to wholman:
- "The four planes described by the front legs, back legs, seat, and back are all squares, sixteen inches to a side."
- "There are sixteen pieces of plywood in the frame; four squared is sixteen."
- "The angle of the front legs, back legs, and seat back off the vertical are all the same, adding another level of symmetry to the design."
The chair is promised to be nearly indestructible, being made of aluminum and plywood. Even if you don't plan to reconstruct this chair, this Instructables covers each process in detail, and it's always interesting to see people will clear skills at work. It also has some excellent tips about glues to use with strange materials, such as plastic foam, and joining metal and wood.
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