Cut legs A & rails B, C to size. Cut hand hole & mortises for hinges in back rail. Cut half lap joints in legs & rails. Lay assembly on bench & clamp swing-leg assemblies on top in open position. Make sure top edges & outside faces of swing-leg rails
When we think of gas masks, we immediately envision goggles with a large contraption placed over the mouth. That’s because the design has largely gone unchanged over the years. Perhaps this cumbersome design is not the best solution.