To HTR's knowledge it was never made, and the question burned: Would such a chair be comfortable? There was only one way to find out, which was to fabricate one and sit in it.
HTR not only spent a considerable amount of time and materials on the build, he literally gave himself a hernia (the chair weighs some 150 pounds) that required surgery. If you can't commit to the full 22 minutes, the least you can do is give the video a scrub-through; at the end he provides his assessment of the design and suggestions for improvement.
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