maxlu179 posted pictures this evening of his new tent. It's a lot like the soldiers tent we made for my children a few years ago, but his seems to be more taut than ours. Also, a bit bigger, which is sensible.
Also, as
sjkasabi predicted a while ago, the next step in tent making is to sew it by hand. I think he did.
Here are the pictures I have of the soldier's tents.

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I interpret the little protrusion at the top end of the tent as encasing the end of a substantial ridge pole. Then I imagine the uprights slotting in to the ridge pole somehow, making the internal structure look something like "π".
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