Abiotic Factor Blacksmith: Synchrotron trades and Fire Proximity Suit route

What this Blacksmith guide solves

The Blacksmith is a stationary trader at F.O.R.G.E. in Manufacturing West. His most important early role is not a broad material-conversion catalog: he provides the three parts needed to repair the Synchrotron pumps after the player meets Dr. Sarah Frake. Mixing those story trades with old optional inventory lists makes it easy to bring the wrong item to the Forge.

This guide keeps the verified progression chain separate from optional stock. It answers four practical questions:

1. When do the Synchrotron exchanges become relevant?
2. Which input produces each of the three repair parts?
3. How should the parts be matched to the colored pump routes?
4. When is the separate Air Compressor exchange for a Fire Proximity Suit worth preparing?

For any optional trade not named below, open the current trade screen and use the input, output, and unlock state shown there. That is safer than treating an older eleven-row inventory as permanent.

Location and story sequence

The Blacksmith remains at his forge in Manufacturing West and is available for trading once the sector has been reached. The Synchrotron repair sequence has a later trigger: speak with Dr. Sarah Frake about her plan, then return to The Blacksmith. The related journal entry records both the three exchanges and the Tram Station Key context.

Use this order:

1. Reach Manufacturing West and locate F.O.R.G.E.
2. Speak with The Blacksmith so the trader and his role are known.
3. Find Dr. Sarah Frake near the Synchrotron objective and hear the repair plan.
4. Return to The Blacksmith and check the progression exchanges.
5. Acquire the three inputs without spending them on unrelated crafting.
6. Trade one input for each required repair part.
7. Follow the red, yellow, and green pipes from the Synchrotron to the broken pumps and install the matching parts.

If the repair exchanges are absent, do not offer substitute materials. Recheck whether the conversation with Frake occurred and whether the follow-up visit to The Blacksmith happened afterward.

Diagram basis: the current Synchrotron and Journal references. Pipe colors are route identifiers, not a distance scale.

The three verified Synchrotron trades

The Axle Grease trade is the easiest one to misstate because older or generated lists sometimes replace the Diode with a different electrical component. The current Axle Grease and Synchrotron references both identify the output as a Diode.

Fibre Optic Cable is documented as obtainable only through The Blacksmith trade. The Reinforced Hose has other acquisition paths, including crafting, Marion, and Plant Toolboxes, but its role here is simply the input for the Optic Lens. Do not trade a hose that is already reserved for another necessary craft without checking inventory first.

Input planning without a fabricated farming promise

Each input should be planned from a confirmed source rather than a statement that every material is infinitely renewable.

Solder

The journal provides the progression clue for Solder before the Fibre Optic Cable trade. Keep the resulting Solder separate from ordinary crafting stock until the pump part has been secured. If the exact cooking or crafting process shown in the current build differs from an old route, follow the active journal and recipe interface.

Axle Grease

The current Axle Grease reference documents placed locations in The Train and several later areas. For this stage, The Train is the progression-relevant source. Carry the grease back rather than consuming it in optional work before the Diode exchange.

Reinforced Hose

Reinforced Hose can be crafted and also has documented acquisition alternatives. The Blacksmith exchanges one Reinforced Hose for one Optic Lens. Count how many lenses the current objective needs before converting a larger hose reserve.

Installing the parts

After collecting Fibre Optic Cable, Diode, and Optic Lens, return to the Synchrotron. Three broken pumps sit at the ends of the red, yellow, and green pipe routes that lead away from the device through Manufacturing West.

Use a one-part-at-a-time checklist:

1. Stand at the Synchrotron and choose one pipe color.
2. Follow that color until the broken pump is reached.
3. Read the pump requirement before using a repair part.
4. Install the matching item and record that color as complete.
5. Return to the central device before choosing the next color.

Starting each leg from the Synchrotron prevents two partially explored pipe routes from becoming one confused loop. The completion condition is not merely owning the three items: all three pumps must be repaired so the Synchrotron can serve the story objective.

Separate trade: Air Compressor for Fire Proximity Suit

The Blacksmith also provides a Fire Proximity Suit in exchange for an Air Compressor. The current suit reference documents +3 Heat Resistance and states that the suit is obtained through this trade.

This exchange is separate from the three Synchrotron pump parts. Prepare it when high heat is the current route blocker, not simply because The Blacksmith is nearby.

The Air Compressor recipe is intentionally not duplicated here. Use the current crafting interface after the recipe is learned, because this page's purpose is the exchange decision and not a static sub-component catalog.

Optional trades: use the live inventory

The Blacksmith can trade more than the four routes described above, but optional stock has changed across versions. A high-quality guide should not preserve an old row merely to make its table look complete.

For an optional trade:

1. Open The Blacksmith's current trade interface.
2. Record the exact input, quantity, output, and unlock state.
3. Check whether the input is reserved for story repair, armor, or another current blocker.
4. Offer one batch first.
5. Collect and store the output before continuing through Manufacturing West.

This procedure also prevents an old guide from sending Super Tomatoes or other materials to a trader whose inventory no longer contains the expected row.

Failure recovery

The story trades do not appear

Confirm that Dr. Sarah Frake's Synchrotron plan was heard, then speak with The Blacksmith again. The order matters. Reaching the Forge alone makes him available as a trader but does not prove the later repair state has been triggered.

You traded or used one input too early

Identify only the missing input and run its source again. Do not repeat the entire three-item route. Keep the remaining repair inputs in a labeled storage container until all three parts are secured.

You have all three parts but cannot finish the objective

Return to the Synchrotron and follow each colored pipe separately. Check the repair state at the end of red, yellow, and green. One unvisited pump is more likely than a missing fourth Blacksmith part.

The Fire Proximity Suit trade is visible but not useful yet

Keep the Air Compressor in storage and delay the exchange until heat protection is the active blocker. Availability is not the same as urgency.

Completion checklist

The Blacksmith progression route is complete when:

• Frake's plan has been heard and the follow-up Blacksmith state is active.
• Solder was exchanged for Fibre Optic Cable.
• Axle Grease was exchanged for a Diode.
• Reinforced Hose was exchanged for an Optic Lens.
• Each item was installed at the correct pump along the colored pipe routes.
• Any optional trade was verified in the current interface before materials were committed.
• The Fire Proximity Suit decision was kept separate from the Synchrotron repair chain.

For the wider sector layout, use the Manufacturing West map. For all trader types and roaming-stock rules, use the trader route planner.