Tool · metals

Furnaces

Build selected fuel-fired refractory chamber with manual air supply; atmosphere and temperature qualification open; unqualified discovery hypothesis.

Discovered · unresearchedClosure: OpenInventory incomplete

Capability requirements and tolerances

Consumer-specific numerical targets, quantities and acceptance limits remain open or incompletely reviewed. No smartphone-grade suitability is claimed. Distinct capability tiers require their own making route and qualification.

Making steps · draft selected for navigation; not a validated fabrication specification.

Known Parts and Tools

The selected route supplies this page's inventory and the map's dependency links from one record. Further requirements may be missing; review flags do not prove physical suitability.

Requirement	Role	Use	Relationship status
Refractories	Part	incorporated component/consumed stock; quantities and losses unknown	Cycle-checked; compatibility unknown
Furnace lining	Part	incorporated component/consumed stock; quantities and losses unknown	Cycle-checked; compatibility unknown
Charcoal	Part	incorporated component/consumed stock; quantities and losses unknown	Cycle-checked; compatibility unknown
Bellows	Tool	reusable fabrication/verification equipment	Cycle-checked; compatibility unknown
Hand-drill ignition kit	Tool	reusable fabrication/verification equipment	Cycle-checked; compatibility unknown
Supports	Tool	reused physical tooling; capability and availability unknown	Cycle-checked; compatibility unknown
Tongs	Tool	reusable fabrication/verification equipment	Cycle-checked; compatibility unknown
Temperature instruments	Tool	reusable fabrication/verification equipment	Cycle-checked; compatibility unknown
Ventilation	Tool	reusable fabrication/verification equipment	Cycle-checked; compatibility unknown

Making outline

Build selected fuel-fired refractory chamber with manual air supply; atmosphere and temperature qualification open
Characterize against caller requirements; quantitative process settings and tests remain unknown.

What remains unresolved

Making route and target-level requirements not researched.
Caller demands, compatible first production route, quantities, losses and acceptance not established.
Complete inventory, source-supported recipe, independent acceptance, caller demands, stock/loss and availability remain unreviewed.

Unselected discovery proposals

These are research questions, not published manufacturing dependencies. The seed combines alternatives, operating requirements and verification relationships.

Refractories, Charcoal, Bellows, Temperature instruments

Proposed capability specification

{
  "function": "Furnaces",
  "quantity": "NOT_RESEARCHED",
  "precision_purity_performance": "NOT_RESEARCHED",
  "acceptance": "NOT_RESEARCHED"
}

Earlier research provenance

2026-10-08 materials targeted frontier pass
2026-10-09 materials breadth pass 03

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Used by

Items that directly require this item in their selected inventory.

Paths from Smartphone

These routes together include every item that can lead from Smartphone to this item. Repeated path combinations are collapsed; recipes are omitted.

Shortest route: Smartphone → Enclosure → Aluminum stock → Furnaces

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