Militia Grinding Wheel ★

Taken all the way down to base materials, one Militia Grinding Wheel is 2 crafting steps deep and needs 2 intermediates — Darksteel Nugget ×1 and Spruce Lumber ×1 — which resolve to 3 distinct raw materials totalling 7 units, plus 11 crystals.

That bill outweighs 4,963 of the 13,602 recipes tracked here and 509 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 6 are burned by the intermediates, so the real crystal cost is 6 Wind Crystal, 3 Fire Crystal and 2 Ice Crystal.

The chain crosses two disciplines — Carpenter to Lv 50 and Blacksmith to Lv 50 — so no single class can finish it unaided.

All 3 raw materials are gathered, and 3 of them are time-gated: Astral Rock (21:00), Darksteel Ore (1:00) and 1 other. The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Darksteel Nugget has the widest use: 121 recipes call for it, spanning seven of the eight crafting classes.